Alluvial sentence example

alluvial
  • The alluvial lands include the river flood plains.
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  • In physical character Cambay is entirely an alluvial plain.
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  • The prevailing soils are sand and gravel loams, but other varieties are numerous, ranging from rich alluvial beds of extinct lakes, as in parts of Lyon and Esmeralda counties, to the strongly alkaline plains of the southern deserts.
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  • In the valleys also are strips covered with a fertile alluvial deposit.
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  • Most of its alluvial burden being deposited in the lakes, the Neva takes a long time to alter its channels or extend its delta.
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  • Towards the city the red soil is intersected by creeks and morasses, whose margins yield crops of rice, mustard and til seed; while to the east of the town, a broad, alluvial, well-cultivated plain reaches as far as the junction of the Dhaleswari and Lakshmia rivers.
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  • The valley bed is more or less covered with alluvial soil, and cultivated in places by artificial irrigation.
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  • The population is small, rude and uncivilized; and the surface is rough and mountainous and generally covered with forest except near the coast, to the alluvial lands on which settlers have been attracted from various surrounding countries.
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  • The substratum of the plain is a bed of boulders, covered during the lapse of ages by a deposit of rich alluvial soil.
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  • As a matter of fact, they are an alluvial deposit spread out by the same flood waters.
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  • Gold is obtained chiefly from quartz reefs, but there are still some important alluvial deposits being worked.
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  • The delta soil is typically a heavy, black, alluvial clay, very fertile, but difficult to work; admixture of sand is beneficial, and the localities where this occurs yield the best cotton.
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  • In the alluvial deposits the associated minerals are chiefly those of great density and hardness, such as platinum, osmiridium and other metals of the platinum group, tinstone, chromic, magnetic and brown iron ores, diamond, ruby and sapphire, zircon, topaz, garnet, &c. which represent the more durable original constituents of the rocks whose distintegration has furnished the detritus.
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  • - In the early days of goldwashing in California and Australia, when rich alluvial deposits were common at the surface, the most simple appliances sufficed.
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  • - This method is employed to extract gold from both alluvial and reef deposits: in the first case it is combined with " hydraulic mining," i.e.
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  • There is scarcely a county in England in which its remains have not been found in alluvial gravel or in caverns, and numbers of its teeth are dredged in the North Sea.
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  • It is built on alluvial deposit and reclaimed land, mostly not exceeding 6 ft.
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  • The evidence upon which these opinions were based had been gathered by such anthropologists as Schmerling, Boucher de Perthes and others, and it had to do chiefly with the finding of implements of human construction associated with the remains of extinct animals in the beds of caves, and with the recovery of similar antiquities from alluvial deposits the great age of which was demonstrated by their depth.
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  • The valley about Herat includes a flat alluvial plain which might, for some miles on any side except the north, be speedily reduced to an impassable swamp by means of flood-water from the surrounding canals.
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  • The destruction of its forests has led to the loss of all its alluvial soil, and now it is for the most part a brown and barren rock, covered at best with scanty aromatic scrub, pastured by sheep and goats.
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  • There are four kinds of soil in Northern Europe: glacial till, alluvial, loess and geest.
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  • The alluvial soil, composed of what has been washed from other soils, together with decayed vegetable matter, covers about 6% of the surface of the state and is found in the river bottoms, of greatest extent in that of the Missouri; it varies much in fertility.
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  • The coast of German East Africa (often spoken of as the Swahili coast, after the inhabitants of the seaboard) is chiefly composed of coral, is little indented, and is generally low, partly sandy, partly rich alluvial soil covered with dense bush or mangroves.
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  • Gold - in some cases alluvial - is found in the mountainous country to the north-west of Lake Rudolf.
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  • The uplands of this district are bounded by the low alluvial plain of Sedgemoor on the east, by the lower basin of the Exe on the south, by the basin of the Taw (in part) on the west, and by the Bristol Channel on the north.
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  • Sometimes the phosphate is found at the surface, but generally it is covered by alluvial sands and clays.
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  • Iii the absence of extensive alluvial plains and marshes, there is little malaria.
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  • Rich strips of alluvial soil, however, seam a cold clay-marl, needing intensive cultivation to become highly productive.
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  • For many years the surface alluvial mining in South Island became less and less profitable.
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  • Gold-mining went through the usual stages of alluvial washing, deep sinking and quartz-reef working.
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  • The alluvial gold-fields were the richest ever opened up, but as these deposits have become exhausted the quartz reefs at deep levels have been exploited, and several mines are worked at depths exceeding 2000 ft.
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  • Through an error, in many recent maps and Assyriological publications Eridu is described as located in the alluvial plain, between the Tigris and the Euphrates.
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  • The larger valleys of the Black Hills district contain fertile alluvial deposits washed from the neighbouring highlands, but in the plains adjoining these mountains the soils consist of a stiff gumbo suitable only for pasture land.
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  • The inhabitable part of the land consists 'of the lower slopes of the range with the valleys and small alluvial plains which lie between its spurs.
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  • Though the cathedral crowns the hillock round which clusters the old part of the town, a large portion of the newer town is built on the alluvial flats on either bank of the Rhone.
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  • It is situated near the head of Cromarty Firth where the valley of the Peffery unites with the alluvial lands at the mouth of the Conon, 182 m.
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  • Alluvial loams occupy the narrow river valleys; but the most common soil of the section is that formed from gneiss with a large per cent.
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  • The Allegheny ridges have only a thin stony soil; but good limestone, sandstone, shale and alluvial soils, occur in the valleys and in some of the plateaus of the extreme west.
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  • It is a mountainous country intersected with rocky canons and fertile valleys, which occasionally broaden out into alluvial plains like that of the Shelif, or the Metija near Algiers, or those in the neighbourhood of Oran and Bona.
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  • The Oligocene period consists of a marine phase confined to the littoral zone of Kabylia, and of a continental phase occupying vast areas composed of lacustrine, alluvial, gypsiferous marls, sandstones and conglomerates.
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  • Such a spot he found at the mouth of the river Achelous, where an island had recently been formed by the alluvial deposit; here he settled and, forgetting his wife Arsinoe, married Callirrhoe, the daughter of the river-god.
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  • The Tempisque enters the Pacific at the head of the Gulf of Nicoya, and tends to silt up that already shallow inlet (5-10 fathoms) with its alluvial deposits.
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  • The busy shipping suburbs of Port Melbourne and Williamstown occupy the flat alluvial land at the mouth of the Yarra.
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  • The ground should be kept free of weeds by frequent hoeing and, if not subject to periodical alluvial floods, manured yearly.
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  • It lies at an elevation of 3313 ft., in a picturesque mountainous district, for the most part pastoral and agricultural, though it contains some alluvial gold diggings.
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  • Here the less uplifted blocks are now heavily aggraded with waste from the dissected ranges: the waste takes the form of huge alluvial fans, formed chiefly by occasional boulder-bearing floods from the mountains; each fan heads in a ravine at the mountain base, and becomes laterally confluent with adjacent fans as it stretches several miles forward with decreasing slope and increasing fineness of material.
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  • In many places there are different channels for high and low water, the latter being partly filled by each freshet, and recut after each subsidence; and the river meanders tortuously through the alluvial bottom in scores of great bends, loops and cut-offs.
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  • This backwater, where it meets and checks the current of the Arkansas, occasions the precipitation of enormous alluvial deposits, and vast quantities of snags.
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  • They occur, with many other gem-stones, as pebbles or rolled crystals in alluvial deposits of sand and gravel; the gem-gravel being known locally as illam.
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  • The district consists entirely of an alluvial plain, in which the principal rivers are the Ganges, Buri Gandak, Baghmati and Little Baghmati, Balan and Little Balan, and Tiljuga.
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  • It is evident from the foregoing remarks, that while even the smallest stream may make deposits of alluvial character it is in the flood-plains and deltas of large rivers that the great alluvial deposits are to be found.
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  • Alluvial deposits may be of great size.
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  • Old alluvial deposits are left high above the existing level of many rivers, in the form of "terraces" of gravel and loam, the streams to which these owe their existence having modified their courses and cut deeper channels; such are the alluvial gravels and brick-earths upon which much of "greater London" is built.
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  • In some regions alluvial deposits are the resting places of gemstones and gold, platinum, &c.; it is from these deposits that the largest nuggets of gold have been obtained.
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  • Alluvial soils are almost invariably of great fertility; it is due to the alluvial mud annually deposited by the Nile that the dwellers in Egypt have been able to grow their crops for over 4000 years without artificial fertilization.
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  • These latter divide the fertile alluvial plains of the north from the mountains of the centre and south.
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  • It is fringed by alluvial deposits and lagoons, which are for the most part of very modern formation, for as late as the 4th or 5th centuries Aquileia was a great seaport.
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  • Its geographical position is excellent; built upon alluvial soil 784 ft.
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  • The rice yields best on low lands subject to occasional inundations, and thus enriched by alluvial deposits.
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  • The former is a long narrow valley, with a rich fringe of cultivation bordering the river; the latter is a wide open alluvial plain, cultivated only on one side, and for the rest rough stony waste.
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  • That is practically the sense in which it is treated in this article s We may begin, however, with the definition of Jezira by the Arabic geographers, who take it as representing the central part of the Euphrates-Tigris system, the part, namely, lying between the alluvial plains in the south and the mountainous country in the north.
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  • The stretch from Samsat and Jeziret-ibn- 'Omar to the alluvial plain seems to divide itself naturally into three parallel belts, highland watershed district, un- Geography.
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  • (3) From the alluvial flats upwards toward these undulating plains is an extensive stretch of steppe land almost destitute of rain.
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  • The observations of Strachey, Godwin-Austen and of Griesbach and other members of the Geological Survey of India only extend to the southern edge or rim of the great plateau, where vast alluvial deposits in horizontal strata have been furrowed into deep ravines, while Russian explorers have but superficially examined the mountain regions of the north and north-east, and the British mission to Lhasa, in 1904 afforded observations merely along the trade-route to that city.
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  • The Tibetan diggers collected together at the mines chiefly during the winter, when the frost assisted to bind the loose alluvial soil and render excavation easy.
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  • These mines are excavations in the alluvial soil, never more than from 20 to 30 ft.
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  • The river, being fairly deep inside the bar, made this a favourite port for the Salli rovers to winter in, but the quantity of alluvial soil brought down threatens to close the port.
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  • It is the commercial centre of the north-western grain and wool-producing district and is also noted for its quartz and alluvial gold-mines.
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  • The plain around Milan is extremely fertile, owing at once to the richness of the alluvial soil deposited by the Po, Ticino, Olona and Adda, and to the excellent system of irrigation.
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  • The district, which was formed in 1883, consists of an alluvial tract between the Pegu Yoma range and the Sittang river: area, 4276 sq.
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  • The general physical features of the island are simple: a chain of lofty mountain ranges extends throughout its length, the western slopes descending rapidly towards the ocean and the eastern looking out over a vast alluvial tract of unusual uniformity.
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  • Their basins, especially in the west, interpenetrate one another in the most intricate way, the whole bearing unmistakable evidences of having been in recent geological, and partly in historical times the bottom of extensive lakes, whose alluvial deposits now yield heavy crops.
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  • These " dry diggings " were therefore at first supposed to be alluvial in origin like the river gravels; but it was soon discovered that, below the red surface soil and the underlying calcareous deposit, diamonds were also found in a layer of yellowish clay about 50 ft.
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  • African pipes is quite different from the occurrences in alluvial deposits which have been described above.
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  • The chief mines are situated on the river Kapnas in the west and near Bandjarmassin in the south-east of the island, and the alluvial deposits in which they occur are worked by a small number of Chinese and Malays.
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  • Australia has yielded diamonds in alluvial deposits near Bathurst (where the first discovery was made in 1851) and Mudgee in New South Wales, and also near Bingara and Inverell in the north of the colony.
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  • These have been for the most part discoveries in alluvial deposits of the goldfields, and the stones were small.
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  • It appears from the foregoing account that at most localities the diamond is found in alluvial deposits probably far from the place where it originated.
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  • Its course below Brieg is less rapid than before and lies through the alluvial deposits which has brought down in the course of ages.
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  • Beyond, the river enters the wide alluvial plain, formerly occupied by the south-eastern arm of the Lake of Geneva, but now marshy and requiring frequent "correction."
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  • From the latitude of Bagdad southward the country is entirely alluvial soil, deposited by the rivers Tigris and Euphrates, possessing great possibilities of fertility, but absolutely flat and subject to inundations at the time of flood of the two rivers.
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  • The first impression of a great alluvial plain is that it is absolutely flat, with no drainage at all.
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  • Now nearly all rivers contain some small percentage of salt, which forms a distinct ingredient in alluvial plains.
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  • The barrage rests entirely on the alluvial bed of the Nile.
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  • The first difficulty that presented itself in carrying this out, was that during the months of highest flood the Nile is so charged with alluvial matter that to pond it up then would inevitably lead to a deposit of silt in the reservoir, which would in no great number of years fill it up. It was found, however, that the flood water was comparatively free from deposit by the middle of November, while the river was still so high that, without injuring the irrigation, water might go on being stored up until March.
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  • Long narrow alluvial strips called Nehrungen, lie between the last two haffs and the Baltic. The Baltic coast is further marked by large indentations, the Gulf of LUbeck, that of Pomerania, east of Rugen, and the semicircular Bay of Danzig between the promontories of Rixhoft and Brusterort.
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  • Extensive areas in the interior, more especially towards Lake Chad, are covered with black earth of alluvial or lacustrine origin.
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  • A large portion of the plain, being an alluvial deposit, is extremely fertile, but in the neighbourhood of the sea the saline exudation common in the north of China renders futile all attempts at cultivation.
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  • It is built partly on the alluvial plain of the Nile valley and partly on the rocky slopes of the Mokattam hills, which rise 550 ft.
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  • The surface of the Delta is a wide alluvial plain slopinf gently towards the sea, and having an altitude of 29 ft.
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  • At Memphis the alluvial deposits are over 50 ft.
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  • The area of alluvial land has probably not changed greatly in historic times.
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  • The wild flora of the alluvial valley was probably always restricted and eventually was reduced almost to the weeds of cultivation, when every acre of soil, at one period of the year dnder water, and at another roasted under the burning heat of a semi-tropical sun, was carefully tilled.
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  • The rich alluvial deposits of the Nile which respond so readily to the efforts of the cultivator ensured the wealth of the country.
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  • The regular inundations, the ease of irrigating the rich alluvial flats, and the great heat of the sun in a cloudless sky, while limiting the natural ~ora, gave immense opportunities to the industrious farmer.
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  • It is probable that certain rudely chipped flints, so-called eoliths, in the alluvial gravels (formed generally at the mouth of wadis opening on to the Nile) at Thebes and elsewhere, are the work of primitive man; but it has been shown that such are produced also by natural forces in the rush of torrents.
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  • When the slope down which a river runs has become very slight, it is unable to carry the sediment brought from higher regions nearer its source, and consequently the lower portion of the river valley becomes filled with alluvial deposits; and since in times of flood the rush of water in the high regions tears off and carries down a greater quantity of sediment than usual, the river spreads this also over the lower valley where the plain is flooded, because the rush of water is checked, and the stream in consequence drops its extra load.
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  • Sections of the Missouri flood plain made by the United States geological survey show a great variety of material of varying coarseness, the stream bed being scoured at one place, and filled at another by currents and floods of varying swiftness, so that sometimes the deposits are of coarse gravel, sometimes of fine sand, or of fine silt, and it is probable that any section of such an alluvial plain would show deposits of a similar character.
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  • The lake is surrounded on the north by steppes; on the west by the rocky plateau of Ust-Urt, which separates it from the Caspian; on the south by the alluvial district of Khiva; and on the east by the Kyzyl-kum, or Red Sand Desert.
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  • In the alluvial plain formed by the rivers Arycandus and Limyrus stood Limyra, and encircling the same bay the three small towns of Rhodiapolis, Corydalla and Gagae.
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  • The climate is moist but temperate and healthy, and the soil of the valleys, often consisting of rich alluvial deposits, is very fertile.
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  • They form indeed excellent pasture-land, while the alluvial flats in the valleys and even some of the lower slopes are fitted for grain and green crops.
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  • The strips of alluvial land bordering a river are known as haughs, and where in estuaries they expand into wide plains they are termed carses.
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  • These alluvial terraces form a strip of low fertile land between the edge of the sea and the rising ground of the interior, and among the western fjords sometimes supply the only arable soil in their neighbourhood, their flat green surfaces presenting a strong contrast to the brown and barren moors that rise from them.
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  • Forest-clad mountains and stretches of thorny jungle alternating with rich alluvial plains, cultivated like gardens under an ancient and elaborate system of irrigation, make the scenery of Lombok exceedingly attractive.
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  • The ferry had long disappeared, and with it a considerable slice of the riverside alluvial soil, which had been washed into the stream by the action of floods.
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  • Under Russian auspices a considerable, strip of alluvial soil on the left bank has been brought under cultivation, measuring Lower 4 or 5 m.
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  • The eastern portion of the district is the ordinary alluvial plain of the Gangetic delta; the western part consists of undulating beds of laterite resting on a rock basis, and covered with small scrub jungle.
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  • The first part consists of an alluvial, low-lying plain formed in great part by the detritus brought down by the mountain streams. It is irregular in form and is broken by isolated elevations and spurs from the Cordillera.
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  • The soil of the river valleys is alluvial and especially fertile, the "American Bottom," extending along the Mississippi from Alton to Chester, having been in cultivation for more than 150 years.
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  • Gold is found both in alluvial and quartz formations, the quartz being especially rich.
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  • Here there intervenes a second wide synclinal plateau, of which the northern edge is defined by the flat outlines of the Elburz to the south of Mazar-i-Sharif, and immediately at the foot of this range lie the alluvial plains of Mazar and Tashkurghan.
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  • The alluvial deposits of the plain, as made known by the boring at Calcutta, prove a gradual depression of the area in recent times.
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  • Even at this depth there was no indication of an approach to the base of the alluvial deposits.
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  • The alluvial deposits prove depression in quite recent geological times; and within the Himalayan region earthquakes are still common, whilst in Peninsular India they are rare.
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  • In large part these consist of plants which grew near the margins of the old rivers, and which were carried down by floods, and deposited in the alluvial plains, deltas and estuarine areas of the old Gondwana period.
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  • Kankar or ghutin (concretionary carbonate of lime) is collected for this purpose from the river-beds and alluvial deposits.
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  • At the foot of the great mountain barrier, and separating it from the more ancient land which now forms the highlands of the peninsula, a broad plain, for the most part alluvial, stretches from sea to sea.
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  • On the west, in the dry region, this is occupied partly by the alluvial deposits of the Indus and its tributaries and the saline swamps of Cutch, partly by the rolling sands and rocky surface of the desert of Jaisalmer and Bikaner, and the more fertile tracts to the eastward watered by the Luni.
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  • The alluvial plain of the Punjab passes into that of the Gangetic valley without visible interruption.
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  • Eastward from the Bengal delta, two alluvial plains stretch up between the hills which connect the Himalayan system with that of the Burmese peninsula.
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  • The tract lying between these streams consists of a rich alluvial deposit, more or less subject to inundations, but producing good crops of rice, wheat and barley.
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  • The town is built on a vast alluvial plain, which extends from the mountains beyond Peking to the sea, and through which the Peiho runs a circuitous course, making the distance by water from Tientsin to the coast about 70 m.
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  • The chief natural features of the province are thus determined by the main streams, whose alluvial deposits first formed the central portion of the United Provinces; while the currents afterwards cut deep channels through the detritus they brought down from the ring of hills or uplands.
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  • The soil of Oudh consists of a rich alluvial deposit, the detritus of the Himalayan system washed down into the Ganges valley.
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  • The deep stream corrodes and cuts down the high ground; but meanwhile alluvial flats are gradually piled up in the shallows.
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  • The massif of Ararat rises on the north and east out of the alluvial plain of the Aras, here from 2 500 ft.
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  • Hard woods grow even on the alluvial lands.
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  • Finally the alluvial bottoms are of wonderful richness.
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  • The coast plain, formed of alluvial deposits, is succeeded about 30 m.
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  • Its surface is for the most part mountainous, though the seaboard district is frequently alluvial and marshy from the deposits of the numerous rivers.
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  • Alluvial deposits brought down by mountain streams, and strips of floodplain along larger streams on the plains are very fertile and well repay irrigation.
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  • Resting on a submarine plateau of no great depth, the coasts of Borneo are for the most part rimmed round by low alluvial lands, of a marshy, sandy and sometimes swampy character.
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  • Excluding some of alluvial formation at the mouths of many of the rivers, and others along the shore which owe their existence to volcanic upheaval, the principal islands are Banguey and Balambangan at the northern extremity, Labuan, a British colony off the west coast of the territory of North Borneo, and the Karimata Islands off the south-west coast.
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  • Its upper reaches are greatly impeded by rocks, rapids and waterfalls, but the lower part of its course is wide, and traverses a rich, alluvial district, much of which is marshy.
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  • The districts of Sambas and Landak in the west, the Kahayan river, the mountain valleys of the extreme south-east and parts of Sarawak furnish the largest quantities of gold, which is obtained for the most part from alluvial washings.
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  • The bulk of the shopkeeping, trading and mining industries, so long as the mining is of an alluvial character, is in Chinese hands.
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  • Gold has been found in alluvial deposits on the banks of some of the rivers of the east coast, but here again the quantity available is still in serious doubt.
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  • Enclosed between the Taurus and Amanus ranges and the sea are the fertile plains of Cilicia Pedias, consisting in great part of a rich, stoneless loam, out of which rise rocky crags that are crowned with the ruins of Greco-Roman and Armenian strongholds, and of Pamphylia, partly alluvial soil, partly travertine, deposited by the Taurus rivers.
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  • Five descents lead from it to the lower town, planted on the alluvial terrace, 30 to 35 ft.
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  • The town is the centre of the Ovens goldfields, and the district is mainly devoted to mining with both alluvial and reef working, but much of the land is under cultivation, yielding grain and fruit.
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  • The soil in the champagne district consists on the slopes largely of chalk and in the plain of alluvial soil.
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  • The Brahmaputra valley is an alluvial plain, about 450 m.
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  • After a rapid course westwards down the whole length of the Assam valley, the Brahmaputra turns sharply to the south, spreading itself over the alluvial districts of the Bengal delta, and, after several changes of name, ends its course of 1800 m.
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  • The alluvial deposits of the Brahmaputra and of its tributary streams may be considered as the third general division of lands in Assam.
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  • The Assam valley is covered by the alluvial deposits of the Brahmaputra.
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  • Gold is found in the alluvial deposits, but the results of exploration have not been very promising.
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  • It is an alluvial plain for the greater part, but contains some sandy tracts, as in Ruble and Arauco; in the north very little natural forest is found except in the valleys and on the slopes of the enclosing mountain ranges, but in the south, where the rainfall is heavier, the plain is well covered with forest.
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  • Auriferous alluvial strata have been discovered in various localities, but everywhere the scarcity of water has been a bar to their being exploited with profit.
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  • The surrounding bluff and alluvial country is very rich.
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  • The drainage of the Bolan and Nari finally disappears in the irrigated flats of the alluvial bay (Kach Gandava), which extends 130 m.
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  • Secondly, to the west of this mountain wilderness, stretching upwards from the sea in a wedge form between the Brahui highlands and the group of towering peaks which enclose the Hingol river and abut on the sea at Malan, are the alluvial flats and delta of the Purali, forming the little province of Las Bela, the home of the Las Rajput.
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  • In this hot and thirsty corner of Baluchistan, ruled by the Jam or Cham, there is a fairly wide stretch of cultivation, nourished by the alluvial detritus of the Purali and well irrigated.
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  • Between the folded marine beds of the Himalaya and the nearly horizontal strata of the peninsula lies the Indo-Gangetic plain, covered by an enormous thickness of alluvial and wind-blown deposits of recent date.
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  • Instead of wide, barren, wind-swept valleys, here are found fertile alluvial plains - such as Manipur - but for the most part the erosive action of the river has been able to keep pace with the rise of the river bed, and we have deep, steep-sided valleys eating their way northwards owing to the greater rainfall on the southern than on the northern slopes.
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  • Gold was washed from some of the Portuguese rivers before the Christian era, and among the Romans the auriferous sands of the Tagus were proverbially famous; it is, however, extremely improbable that large quantities of gold were ever obtained in this region, although small deposits of alluvial gold may still be found in the valleys of the Tagus and Mondego.
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  • The popular conception of Bolivia is that of an extremely rugged mountainous country, although fully three-fifths of it, including the Chiquitos region, is composed of low alluvial plains, great swamps and flooded bottomlands, and gently undulating forest regions.
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  • The eastern tract consists of rich alluvial soil, well watered, and subject to fertilizing inundations, yielding heavy crops of coarse rice, oil-seeds and jute.
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  • Its bed is studded with alluvial islands.
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  • The country is also covered with thick diluvial and alluvial deposits containing gold.
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  • It is not as yet possible to fix the exact boundaries of the original home of the Chaldaeans, but it may be regarded as having been the long stretch of alluvial land situated at the then separate mouths of the Tigris and Euphrates, which rivers now combine to flow into the Persian Gulf in the waters of the majestic Shatt el `Arab.
    0
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  • Along the west coast extends the "Marshland," a belt of rich alluvial soil formed by the deposits of the North Sea, and varying in breadth from 5 to 15 m.
    0
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  • South of this belt the soils are generally sandy and are not very fertile except at altitudes of less than 50 ft., where they are loamy and of alluvial origin.
    0
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  • The output of alluvial gold is now increased by the employment of dredges.
    0
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  • About onefourth of the gold won is alluvial.
    0
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  • It sinks lowest where the estuary of the Humber gathers in its main tributaries, and the greater part of the surface is covered with recent alluvial deposits.
    0
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  • There are very few dwellings situated at a higher level than moo ft., and on the lower ground the Chalk and the Oolitic limestones, where they crop out on the surface, are extremely thinly peopled, and so as a rule are areas of alluvial deposits and the Tertiary sands.
    0
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  • Persian Seistan was once highly cultivated by means of a great system of canal irrigation; but for centuries, since the country was devastated by Timur, it has been a barren, treeless waste of flat alluvial plain.
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  • Throughout its course from its confluence with the Arghandab to the ford of Chahar Burjak, where it bends northward, the Helmund valley is a narrow green belt of fertility sunk in the midst of a wide alluvial desert, with many thriving villages interspersed amongst the remains of ancient cities, relics of Kaiani rule.
    0
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  • (2) The chief town of the vilayet, situated in the alluvial plain about 30 m.
    0
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  • The city occupies part of a rich alluvial valley enclosed by hills.
    0
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  • Inasmuch as the streams entering the basin have no outlet to the ocean, their waters disappear by evaporation, either directly from alluvial slopes over which they pass, or from saline lakes occupying depressions between the mountain ranges.
    0
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  • The floor of the Basin Region is formed of alluvium washed from the high plateaus and mountain ranges, a part of which has accumulated in alluvial fans, and part in the greatly expanded lakes which existed here in the glacial period.
    0
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  • In the protected valleys between the high plateaus alluvial soils are cultivated; but the plateau summits are relatively inaccessible, and, being subject to summer frosts, are not cultivated.
    0
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  • Although in 1880 numerous prospectors discovered extensive deposits of alluvial gold, its exploitation was not generally successful, and farms took the place of mines.
    0
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  • Cattle farms prosper along Beagle Channel, the timber industry is growing, lignite seams have been discovered, and alluvial gold is washed principally at Slogget Bay.
    0
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  • The districts near the sea consist entirely of alluvial formations; and, indeed, it is stated that no substance so coarse as gravel occurs throughout the delta, or in the heart of the provinces within 400 m.
    0
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  • The streams, accordingly, deposit their alluvial burden in their channels and upon their banks, so that by degrees their beds rise above the level of the surrounding country.
    0
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  • Thus, one man's property is diminished, while that of another is enlarged or improved; and a distinct branch of jurisprudence has grown up, the particular province of which is the definition and regulation of the alluvial rights alike of private property and of the state.
    0
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  • The greater part of Bengal is occupied by the alluvial deposits of the Ganges, but in the south-west rises the plateau of Chota Nagpur composed chiefly of gneissic rocks.
    0
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  • Beyond Galatz, the river again turns eastward, branching out, near Tulcea, into three great waterways, which wind through a low-lying alluvial delta to the sea.
    0
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  • A small part of the northern Colombia, on the lower courses of the Atrato and Magdalena, extending across the country from the Eastern to the Western Cordilleras with a varying width of 100 to 150 m., not including the lower river basins which penetrate much farther inland, also consists of low, alluvial plains, partly covered with swamps and intricate watercourses, densely overgrown with vegetation, but in places admirably adapted to different kinds of tropical agriculture.
    0
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  • Boyaca £ 115,600,000 Three-fourths of the gold production, he estimates, was derived from alluvial deposits.
    0
    0
  • From the other districts alluvial diamonds are obtained of the average annual value of £250,000-400,000.
    0
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  • The lowest part of the surface of this rock was reached after excavating through alluvial deposits to a depth of about 70 ft., but owing to its fissured and cavernous nature it became necessary to excavate to much greater depths, reaching in places more than 120 ft.
    0
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  • It is interesting to record that during the construction of the works the implements of Neolithic man were found, near the margin of the modern lake, below the peat, and above the alluvial clay on which it rested.
    0
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  • In 1807, after conducting a successful suit on behalf of a client's title to a part of the batture or alluvial land near New Orleans, Livingston attempted to improve part of this land (which he had received as his fee) in the Batture, Ste Marie.
    0
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  • Gujarat, except on its northern parts, consists of rich, highly cultivated alluvial plains, watered by the Tapti and Nerbudda, but not much subject to inundation.
    0
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  • Bombay Presidency possesses two great classes of forests - those of the hills and those of the alluvial plains.
    0
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  • The alluvial forests lie in Sind, on or close to the banks of the Indus, and extend over an area of 550 sq.
    0
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  • The flat alluvial soil bordering on the lake is very fertile, and the climate is well adapted for fruit cultivation.
    0
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  • The district forms a strip of alluvial land between the hills and the sea, varying from about 9 to 34 m.
    0
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  • The salt tract is purely alluvial, and appears to be of recent date.
    0
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  • Alluvial tin mining is carried on successfully in the neighbourhood of Embadaan, cassiterite to the value of £46,000 being exported in 1905-1907.
    0
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  • Around the estuary of the Tocantins the great plateau has disappeared, to give place to a part of the forest-covered, half submerged alluvial plain, which extends far to the north-east and west.
    0
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  • Between the Huallaga and the Ucayali lies the famous " Pampa del Sacramento," a level region of stoneless alluvial lands covered with thick, dark forests, first entered by the missionaries in 1726.
    0
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  • Then they bend to the south-west, and, abutting upon the lower Tapajos, merge ' Igapo is thus the name given to the recent alluvial tracts along the margins of rivers, submerged by moderate floods, whereas vargem is the term used for land between the levels of moderate and high floods, while for land above this the people use the term terra firma.
    0
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  • It was probably at one time an island; this was Strabo's opinion, and at the present day the ground which joins it to the mainland is low and swampy, and seems to have been formed by alluvial soil brought down by the Cephisus.
    0
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  • At any rate, it is certain that, as a general rule, the hard wheats are almost exclusively cultivated in hot, dry countries, the spelt wheats in mountainous districts and on poor soil, turgid (durum forms) and common wheats in plains or in valleys - the best races of wheat being found on rich alluvial plains and in fertile valleys.
    0
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  • Barkly West remains, however, the centre of the alluvial diamonds industry.
    0
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  • A favourable site was found on some low hills of alluvial formation, about 2 m.
    0
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  • We thus obtain the following four main divisions of the continent: - (1) The coast plains - often fringed seawards by mangrove swamps - never stretching far from the coast, except on the lower courses of streams. Recent alluvial flats are found chiefly in the delta of the more important rivers.
    0
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  • Between the Wolds and the sea lie the Marshes, a level tract of rich alluvial soil extending from Barton-on-Humber to Wainfleet, varying in breadth from 5 to 10 m.
    0
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  • The rest of the county, comprising all its south-east portions between the Middle Oolite belt and the sea, all its northeast portions between the chalk belt and the sea, and a narrow tract up the course of the Ancholme river, consists of alluvial deposits or of reclaimed marsh.
    0
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  • Some of these alluvial accumulations indicate a former greater extension of the snowfields that are now so restricted in the Spanish sierras.
    0
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  • Salonica lies on the west side of the Chalcidic peninsula, at the head of the Gulf of Salonica (Sinus Thermaicus), on a fine bay whose southern edge is formed by the Calamerian heights, while its northern and western side is the broad alluvial plain produced by the discharge of the Vardar and the Bistritza, the principal rivers of western Macedonia.
    0
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  • Tasmania is the largest producer of tin in Australasia, and a very large proportion of the tin hitherto produced has been obtained from alluvial deposits, the lodes, except at Mount Bischoff, having, comparatively speaking, been neglected.
    0
    0
  • The soils, which are composed largely of sands, except in the upland valleys where alluvial loams with the sub-soils of clay are found, were not suitable for tillage.
    0
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  • In the district, which is chiefly pastoral, there are several goldfields, with both alluvial and reef mining.
    0
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  • Cotton is not raised to any extent except in the rich alluvial land of the Mississippi Valley.
    0
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  • Mining for alluvial cassiterite continued right up to the 20th century but was at its maximum in the middle ages.
    0
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  • The southern alluvial plain of Sumer and the more northerly Akkad were once densely populated city-states.
    0
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  • Gewurztraminer likes alluvial clay, while Sylvaner will put up with the loam soil of the valley or Bas Rhin.
    0
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  • There is an old path (not on my map) for 2 km to lush alluvial pastures where two stone crofts once stood.
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  • The alluvial flood plains in the Gulf region and the south east suited pines and swamp cypress.
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  • The drift geology map for the LCA also highlights the extensive alluvial deposits associated with the present-day floodplain of the lagan.
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  • Fertile alluvial flood plains have been cleared for agriculture, making alluvial forest a threatened habitat at a European scale.
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  • Subsequent detailed sampling showed that alluvial gold is present over a large area of the central Ochils and eastwards to the Firth of Tay.
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  • The drift geology map also highlights spreads of alluvial deposits associated with the floodplains of the rivers that form the headwaters of the Lagan.
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  • First, let it be said, that certain alluvial gold is unquestionably derived from the denudation of quartz lodes.
    0
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  • The sands and gravels of the alluvial plain originated as glacial outwash from the melting glaciers inland.
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  • His soil isn't suitable for carrots and parsnips as the alluvial silt has heavy seams running through it which make them bend.
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  • They had broken into an ancient river channel filled with alluvial deposits whose presence was hitherto unsuspected.
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  • As the low-lying plains are altogether an alluvial deposit, the coarser sediments accumulate in the regions where the river first overflows its banks to spread out over the plains.
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  • The great alluvial plain is one of Australia's most notable inland features; its extent is upwards of 500,000 sq.
    0
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  • In the alluvial portions of the interior salsolaceous plants - saltbush, bluebush, cottonbush - are invaluable to the pastoralist, and to their presence the pre-eminence of Australia as a wool-producing country is largely due.
    0
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  • Titanium, in the minerals known as octahedrite and brookite, is found in alluvial deposits in New South Wales, in conjunction with diamonds.
    0
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  • On the west coast no true lode has yet been discovered, though the vast alluvial deposits of tin found there seem to make such a discovery probable in the future.
    0
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  • The action of rain, ice and rivers conspires with the movement of land waste to strip the layer of soil from steep slopes as rapidly as it forms, and to cause it to accumulate on the flat valley bottoms, on the graceful flattened cones of alluvial fans at the outlet of the gorges of tributaries, or in the smoothly-spread surface of alluvial plains.
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  • Finally the mountain valley, with its patches of cultivable soil on the alluvial fans of tributary torrents, its narrow pastures on the uplands only left clear of snow in summer, its intensified extremes of climates and its isolation, almost equal to that of an island, has in all countries produced a special type of brave and hardy people, whose utmost effort may bring them comfort, but not wealth, by honest toil, who know little of the outer world, and to whom the natural outlet for ambition is marauding on the fertile plains.
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  • There are stony wastes, or alluvial fans, where mountain streams emerge upon the plains, in time of flood, bringing detritus in their torrential courses from the mountain canyons and depositing it along the mountain base.
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  • Damaji Gaekwar descended from the Western Ghats upon the alluvial plains of Gujarat around Baroda; Tukoji Holkar subdued the uplands of Malwa beyond the Vindhya range on the north bank of the Nerbudda; and Mahadji Sindhia obtained possession of large tracts immediately south of Agra and Delhi, marched into Hindustan and became virtually the master of the Mogul emperor himself (see GwAL10R).
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  • At the mouth of the Selenga, however, which enters from the south-east, pouring into it the waters and the alluvial deposits from a drainage area of 173,500 sq.
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  • The alluvial portion of the state, especially below the mouth of the Red river, is an intricate network of these bayous, which, before their closure by a levee system, served partially, in time of flood, to carry off the escaping surplus of river waters.
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  • The low regions of Louisiana, including the alluvial lands and the coast swamps, comprise about 20,000 sq.
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  • The most common species in the alluvial regions and, to a less degree, in the drier portions of the swamps and in the stream bottoms of the prairies are various oaks, black, sweet and tupelo gum, holly, cotton-wood, poplar, magnolia sweet bay, the tulip tree, catalpa, black walnut, pecans, hickories, ash, beech and short-leaf pine.
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  • To the north-east of the Dinaric Alps extends a region of mountain, moor and forest, with deeply sunk alluvial basins, which finally expand into the lowlands of the Posavina, or Vale of the Save, forming the southernmost fringe of the Hungarian Alfold.
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  • Over five-sixths of the world's total production is derived from secondary alluvial deposits, but all the tin obtained in Cornwall (the alluvial deposits having been worked out) and Bolivia is from vein mining, while a small portion of that yielded by Australasia comes from veins and from granitic rocks carrying disseminated tinstone.
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  • The soil is of four kinds: till or drift, alluvial, loess or bluff and geest.
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  • The floor of this depression being below baselevel, it has necessarily come to be the seat of the mountain waste brought down by the many streams from the newly uplifted Sierra Nevada on the east and the coast ranges on the west; each stream forms an alluvial fan of very gentle slope; the fans all become laterally confluent, and incline very gently forward to meet in a nearly level axial belt, where the trunk riversthe Sacramento from the north and the San Joaquin from the south-east--wander in braided courses; their tendency to aggradation having been increased in the last half century by the gravels from gold washing; their waters entering San Francisco Bay.
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  • The small alluvial plains at the mouths of these rivers are the only level ground in Lycia, but the hills that rise thence towards the mountains are covered with a rich arborescent vegetation: The upper valleys and mountain !sides afford good pasture for sheep, and the main Taurus range encloses several extensive upland basin-shaped valleys (vailas), which are characteristic of that range throughout its extent (see Asia Minor).
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  • The alluvial valley of the Guayas, above Guayaquil, is celebrated for the richness of its vegetation, which, in fruit alone, includes cacao, coffee, coco-nuts, pine-apples, oranges, lemons, guayavas (Psidium pomiferum), guavas (Inga spectabilis), shaddocks (or grape-fruit), pomegranates, apricots, chirimoyas (Anooa Chirimolia), granadillas (Passiflora quadrangularis), paltas (Persea gratissima, otherwise known as " alligator pears "), tunas (Cactus), mangoes (Man,gifera Indica), pacays (Prosopis dulcis), aji (Chile pepper), and many others of less importance.
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  • The curved recession of the Suliman Ranges to the north-west leaves a space of flat alluvial desert to the south, which forms a sort of inlet or bay striking into the Baluchistan mountain system.
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  • Here and there a valley has become filled with alluvial detritus owing to some local impediment in the drainage, and when this occurs there is usually to be found a fertile and productive field for agriculture.
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  • Later came the alluvial silting-up. Slowly, but surely, the deltas of the tributary streams advanced into the lake, floods deposited their burdens of detritus in the deeper places, the lake shallowed and shrank and in its turn yielded to the winding river of an alluvial strath, covered with peat, reeds and alders, and still liable to floods.
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  • A little south of Samarra the stony plateau of Mesopotamia ends, and the alluvial plain of Irak, ancient Babylonia, begins.
    5
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  • At the point of entering the alluvial plain the bed of the Tigris seems to be lower than that of the Euphrates, so that the canals run from the latter to the former stream.
    12
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  • A little south of Samarra are found remains of the Median Wall, which stretched south-west towards the Euphrates near Sahlawych, marking the edge of the Babylonian alluvial plain.
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  • The soil, chiefly alluvial, though in some places arenaceous, is generally fertile and well cultivated, but a great portion is covered with forests, interspersed with lakes.
    7
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  • No evidences of recent lava flows can be found in the interior over the great alluvial plain, the Lower, or the Higher Steppes.
    5
    5
  • As the general level of the country is raised by successive alluvial deposits, the more ancient river-beds become buried, but being still connected with the newer rivers at some point or other, they continue to absorb water.
    1
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  • This underground network of old river-beds underlying the great alluvial plains must be filled to repletion before flood waters will flow over the surface.
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  • It is entirely different in all essential features from the great alluvial plains.
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  • A considerable number of men are engaged in the various states on alluvial fields, in hydraulic sluicing, and dredging is now adopted for the winning of gold in river deposits.
    2
    3
  • Iridosmine occurs commonly with gold or tin in alluvial drifts.
    2
    3
  • The Chinese difficulty, so far as the mining population was concerned, was solved by the exhaustion of the extensive alluvial deposits; the miners' prejudice against the race, however, still exists, though they are no longer serious competitors, and the laws of some of the states forbid any Chinese to engage in mining without the express authority in writing of the minister of mines.
    4
    4
  • The descent from the summits of the range into the plain is somewhat less abrupt on the western than it is on the eastern side, and between the foot of the mountains and the Strait of Malacca the largest known alluvial deposits of tin are situated.
    1
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  • As stream tin it occurs abundantly in some of the alluvial deposits derived from the crystalline area, especially on the west coast.
    4
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  • Since 1890 the tin produced from these alluvial beds has supplied between 50% and 75% of the tin of the world.
    5
    5
  • It is noticed that labourers employed in deep mines worked by shafts suffer less from fever than do those who are engaged in stripping the alluvial deposits.
    2
    3
  • The tract adjoining this long line of lagoons is, like the basin of the Po, a broad expanse of perfectly level alluvial plain, extending from the Adige eastwards to the Carnic Alps, where they approach close to the Adriatic between Aquileia and Trieste, and northwards to the foot of the great chain, which here sweeps round in a semicircle from the neighborhood of Vicenza to that of Aquileia.
    4
    4
  • The lakes of Bolsena (Vulsiniensis), of Bracciano (Sabatinus), of Vico (Ciminus), of Albano (Albanus), of Nemi (Nemorensis), and other smaller lakes belong to this district; while between its south-west extremity and Monte Circello the Pontine Marshes form a broad strip of alluvial soil infested by malaria.
    2
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  • Hit stands almost at the head of the alluvial deposit, about 550 m.
    2
    3
  • The land itself, an alluvial deposit, is very fruitful.
    2
    3
  • The plains are covered by a formation similar to that of the Argentine pampas and by the alluvial deposits of the present rivers.
    4
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  • The soil, mainly alluvial, is naturally very fertile, and wherever cultivated yields abundant crops, durra being the principal grain grown.
    2
    3
  • The geological formation includes (like that of Java) three regions - the central volcanic, the southern peninsula of Tertiary limestone, and alluvial plains between the older formations.
    2
    3
  • Sometimes also a viaduct consisting of a series of arches is preferred to an embankment when the line has to be taken over a piece of fiat alluvial plain, or when it is desired to economize space and to carry the line at a sufficient height to clear the streets, as in the case of various railways entering London and other large towns.
    4
    4
  • North of this is the deep bay called in ancient times the Gulf of Iasus (now known as the Gulf of Mendeliyah), and beyond this again was the deeper inlet which formerly extended inland between Miletus and Priene, but of which the outer part has been entirely filled up by the alluvial deposits of the Maeander, while the innermost arm, the ancient Latmic Gulf, is now a lake.
    4
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  • The most valuable species for lumber are the long-leaf pine which is predominant in the low southern third of the state, sometimes called the "cow-country"; the short-leaf pine, found farther north; the white oak, quite widely distributed; cotton-wood and red gum, found chiefly on the rich alluvial lands; and the cypress, found chiefly in the marshes of the Delta.
    6
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  • It is deeper and more fertile, however, in the basins of the Great Miami and Little Miami rivers, where there is a liberal mixture of decomposed limestone and where extensive areas with a clay subsoil are covered with alluvial deposits.
    4
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  • It consists entirely of rich alluvial soil, annually inundated to a depth varying from 2 to 14 ft.
    2
    3
  • It contains all the best land in Berar; it is full of deep, rich, black alluvial soil, of almost inexhaustible fertility, and it undulates sufficiently to maintain a natural system of drainage, but there is nothing picturesque about this broad strip of champaign country.
    2
    2
  • Derwentwater and Bassenthwaite occupy a single depression, a flat alluvial plain separating them.
    6
    6
  • The middle and eastern divisions of the district, forming the south-western part of the Mahanadi delta, consist entirely of alluvial plains, watered by a network of channels through which the most southerly branch of that river, the Koyakhai, finds its way into the sea.
    3
    4
  • Mogilev is built up of Devonian deposits in the north, of Cretaceous in the east, and of Tertiary elsewhere, but generally is covered with a thick layer of Glacial and later alluvial deposits.
    0
    1
  • The part of the district along the Irrawaddy and Chindwin rivers is alluvial.
    0
    1
  • These flood plains form collectively what is known as the alluvial region, which extends in a broad belt down the Mississippi, from the mouth of the Ohio to the Gulf of Mexico, and up the Ouachita and its branches and the Red river to and beyond the limits of the state.
    0
    1
  • The alluvial region of the state in 1909 was mainly protected against overflow from the Mississippi river by 754 m.
    0
    1
  • Heavy rainfall, high temperature and fertile soil combine to cover the greater part of the state, and particularly the alluvial regions and the coast swamps, with a most luxuriant subtropical vegetation, both arborescent and herbaceous.
    0
    1
  • Alluvial soil and bluff, the location of which has been indicated, are of primary agricultural importance.
    0
    1
  • The alluvial section of lower Louisiana is mostly devoted to sugar, and farther northward to Indian corn and cotton.
    0
    1
  • The strong, black perique of the delta - cultivated very generally in the lower alluvial region before the Civil War, but now almost exclusively in St James parish - is a famous leaf, grown since early colonial times.
    0
    1
  • The " buckshot clays " of the backlands, which are so stiff that they can scarcely be ploughed until flooded and softened, and are remarkably retentive of moisture, are ideal rice soil; but none of the alluvial lands has an underlying hardpan, and they cannot as a rule be drained sufficiently to make the use of heavy harvesting machinery possible.
    0
    1
  • The soil of the island is almost wholly of modern formation, mainly alluvial, with superficial limestones as another prominent feature.
    0
    1
  • Soils are of four classes: calcareous-ferruginous, alluvial, argillous and silicious.
    0
    1
  • Much of the soil of the desert appears to be alluvial; there are numerous traces of streams having formerly passed over it, and still, where irrigation is at all practicable, fertility in the clayey tract follows; but the rains are scanty, the wells few and generally 100 ft.
    0
    1
  • Along the whole northern rim of Bosnia, as also in the fluvial and Karst valleys (poljes), are found diluvial and alluvial formations, interrupted at one place by an isolated granite layer.
    0
    1
  • The river, running through an absolutely flat country, composed entirely of alluvial soil, is apt to change its channel.
    0
    1
  • Formerly filled with alpine lakes, these valleys are now sheeted with flat alluvial soil and occupied by human settlements, and are drained by rivers which flow along them before they make their way to the north through narrow gorges pierced in the mountain-walls.
    0
    1
  • A little below the town of Glarus the river, keeping its northerly direction, runs through the alluvial plain which it has formed, towards the Walensee and the Lake of Zurich.
    0
    1
  • But between the Lake of Zurich and the Walensee the huge desolate alluvial plain grew ever in size, while great damage was done by the river, which overflowed its bed and the dykes built to protect the region near it.
    0
    1
  • Along its eastern boundary adjoining Burdwan district the country is flat and alluvial, presenting the appearance of the ordinary paddy lands of Bengal.
    0
    1
  • In the neighbourhood of the Vaal, confluence, where the river passes through alluvial land, and at some other places, the waters of the Orange are used, and are capable of being much more largely used, for irrigation purposes.
    0
    1
  • C. Jerdon states that the Indian ratel is found throughout the whole of India, from the extreme south to the foot of the Himalaya, chiefly in hilly districts, where it has greater facilities for constructing the holes and dens in which it lives; but also in the north of India in alluvial plains, where the banks of large rivers afford equally suitable localities wherein to make its lair.
    0
    1
  • In the larger depressions, like that of the Reconcavo of Bahia, there are large alluvial areas celebrated for their fertility.
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  • It rises on an elevated tableland in the state of Sao Paulo and flows across the state of Rio de Janeiro from west to east, through a broad fertile valley producing coffee in its most elevated districts and sugar on its alluvial bottom-lands nearer the sea.
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  • A small part bordering the Venezuelan sierras is elevated and mountainous, but the greater part forms an immense alluvial plain, densely wooded, traversed by innumerable rivers, and subjected to extensive annual inundations.
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  • The absence of alluvial deposits of any size is another characteristic of the Transvaal rivers.
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  • Besides the alluvial deposits a little mining is carried on, gold being present in the thin veins of quartz which cross the sandstone.
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  • Besides the Pretoria fields there are diamondiferous areas (alluvial diggings) in the Bloemhof district on the Vaal river north-east of Kimberley, and in other regions.
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  • It is also found in the form of rolled lumps and grains, "stream tin," in alluvial gravels; the latter are secondary deposits, the products of the disintegration of the first-named primary deposits.
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  • The alluvial deposits are almost invariably worked opencast, those of the Malay Peninsula and Archipelago chiefly by Chinese labour: in a few instances hydraulic mining has been resorted to, and in other cases true underground mining is carried on; but the latter is both exceptional and difficult.
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  • The alluvial extracted, which in the Malay Peninsula and Archipelago carries from 5 to 60 lb of tinstone (or "black tin," as it is termed by Cornish miners) to the cubic yard of gravel, is washed in various simple sluicing appliances, by which the lighter clay, sand and stones are removed and tinstone is left behind comparatively pure, containing usually 65 to 75% of metallic tin (chemically pure tinstone contains 78.7%).
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  • The cacau is at its best in the humid forests of this region and is cultivated in the rich alluvial valleys, and the banana thrives everywhere, as well as the exotic orange and lemon.
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  • Sugar-cane is cultivated in the alluvial valleys and coffee on their slopes up to a height of about 2000 ft.
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  • In its upper and in its lower course the river flows either through high alluvial plains, in which it has scored a deep channel, or across swamp land.
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  • The amount of alluvial matter carried is enormous; from Ruwenzori alone the detritus is very great.
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  • Within the valley all the alluvial deposits are recent.
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  • Pamphylia consists almost entirely of a plain, extending from the slopes of Taurus to the sea, but this plain, though presenting an unbroken level to the eye, does not all consist of alluvial deposits, but is formed in part of travertine.
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  • The northern part of this tract is barren hilly country, but in the west and south are rich alluvial plains containing some of the most fertile lands of the province.
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  • This delta, which includes the districts of Bassein, Myaungmya, Thongwa, Henzada, Hantha waddy, Tharrawaddy, Pegu and Rangoon town, consists almost entirely of a rich alluvial deposit, and the whole area, which between Cape Negrais and Elephant Point is 137 m.
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  • The stones, averaging ten to a carat, are found in the river gravel or in alluvial deposits.
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  • In contrast with the arid plateau of Mesopotamia, stretched the rich alluvial plain of Chaldaea, formed by the deposits of the two great rivers by which it was enclosed.
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  • The alluvial plain of Babylonia was called Edin, the Eden of Gen.
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  • Tobacco is extensively cultivated in the plains and on the rich alluvial deposits along the sides of rivers.
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  • It occupies, in great part, the low alluvial plain that skirts the shores of the bay and fills the valleys between numerous low wooded hills.
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  • The central zone includes Hejaz (or Hijaz), Nejd and El Hasa; much of it is a dry, stony or sandy steppe, with few wells or watering-places, and only occupied by nomad tribes; but the great wadis which intersect it contain many fertile stretches of alluvial soil, where cultivation is possible and which support a considerable settled population, with several large towns and numerous villages.
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  • The Tehama is, however, by no means all desert, the mountain torrents where they debouch into the plain have formed considerable tracts of alluvial soil of the highest degree of fertility producing in that warm equable climate two and even three crops in the year.
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  • Gold is found in lodes and alluvial deposit; the former on the Pacific slope at Salpo, Otuzco, Huaylas, Yungay, Ocros, Chorrillos, Canete, Ica, Nasca, Andaray and Arequipa, and on the table-lands and Amazon slope at.
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  • The alluvial deposits are found both in the beds of the small streams and in the soil of the small plains or pampas.
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  • Some are contained in alluvial depressions in the river valleys; others have been formed by volcanic eruptions, the ejecta damming the rivers until exits were found over cliffs or through gorges.
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  • It is the centre of a large gold-field consisting of quartz ranges, with some alluvial deposits, and many of the mines are deep-level workings.
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  • The discovery of alluvial gold in 1851 brought many immigrants to the district; but the opening up of the quartz reefs in 1872 was the principal factor in the importance of Bendigo.
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  • The association and distribution of gold may be considered under two different heads, namely, as it occurs in mineral veins - " reef gold," and in alluvial or other superficial deposits which are derived from the waste of the former - " alluvial gold."
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  • From the district of Yukon (Klondike, &c.) £2,800,000 was obtained in 1899, wholly from alluvial workings, but the progress made since has been slower than was expected by sanguine people.
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  • The gold occurs in alluvial deposits designated as gulch-, bar-, beach-, tundraand bench-placers.
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  • In the placer or alluvial deposits, the precious metal is found usually in a water-worn condition imbedded in earthy matter, and the method of working all such deposits is based on the disintegration of the earthy matter by the action of a stream of water, which washes away the lighter portions and leaves the denser gold.
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  • In alluvial deposits the richest ground is usually found in contact with the "bed rock"; and, when the overlying cover of gravel is very thick, or, as sometimes happens, when the older gravel is covered with a flow of basalt, regular mining by shafts and levels, as in what are known as tunnel-claims, may be required to reach the auriferous ground.
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  • Adam 's research interests lie principally in alluvial archeology, waterlogged timber and later prehistoric landscapes.
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  • They grow best in moist alluvial soils, and are well adapted for avenues and roadsides.
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  • On rich loams and the alluvial soils of river-valleys, when well drained, the tree attains a large size, often rivalling the giant oaks of Europe; trunks of 3 or 4 ft.
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  • The soil is composed of red ferruginous kankar, with a stratum of clay in the more elevated parts, covered by a thin layer of vegetable mould, or by recent alluvial deposits.
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  • Next, the long and narrow valley of the Nerbudda from Jubbulpore to Hoshangabad is formed of deep alluvial deposits of extreme richness and excellently suited to the growth of wheat.
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  • In the plains the soil is generally of sand or alluvial clay, covered in the valleys with a rich vegetable mould.
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