How to use Conglomerates in a sentence

conglomerates
  • These are overlaid by conglomerates, tuffs, sandstones and arkoses, which perhaps do not all belong to the same period.

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  • The Upper Devonian was a period of marine retreat; the crustal disturbances of the Lower Devonian were renewed and great quartz-pebble beaches were formed on the rising shore lines, producing the West Coast Range conglomerates of Tasmania, and the similar rocks to the south-east of Mansfield in Victoria.

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  • The mountains both in Victoria and New South Wales were snow-capped, and glaciers flowed down their flanks and laid down Carboniferous glacial deposits, which are still preserved in basins that flank the mountain ranges, such as the famous conglomerates of Bacchus Marsh, Heathcote and the Loddon valley in Victoria, and cf Branxton and other localities in New South Wales.

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  • A group of highly inclined quartzites, altered conglomerates and jasperoid rocks which crop out on the Umhlatuzi river, between Melmoth and Nkandhla and on the White Umfolosi river above Ulundi Ph ins, is considered by Anderson to represent some portion of the Lover Witwatersrand series.

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  • They show a great variety of type made up of slates, quartzites, occasional conglomerates, schists with large masses of intrusive granites and gneiss.

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  • There are occasional bands of conglomerates, sometimes auriferous.

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  • The upper group consists of conglomerates, grits and quartzites with a few bands of shales.

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  • It has obtained notoriety from the conglomerates along certain bands containing gold, when they constitute the famous " banket."

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  • The conglomerates consist almost entirely of pebbles of quartz set in a hard 2 At the Standerton gauge on the Vaal in 1905-1906, a year of extreme drought, the total flow was 8,017,000,000 cub.

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  • Near Reitzburg the coarse conglomerates reach a thickness of 400 ft.

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  • Sandstones, quartzites, conglomerates and breccia make up the formation.

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  • On such a basis they arrived at more than £600,000,000 as the available gold contained in the Witwatersrand conglomerates.

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  • This boss is bounded, except on the south, by the Witwatersrand series, the lower portion of which consists of quartzites and slates and the upper portion of quartzites and conglomerates.

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  • The Black Reef series of quartzites and conglomerates and dolomite form a narrow outcrop resting unconformably upon the last-mentioned system.

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  • They consist of gneiss, mica-schist, quartzites, crystalline limestones and conglomerates.

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  • At Jebel-kahar and west of Traras, Pomel attributes certain conglomerates, red sandstones and purple and green shales to the Permian.

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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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  • Limonite often forms a cementing medium in ferruginous sands and gravels, forming "pan"; and in like manner it is the agglutinating agent in many conglomerates, like the South African "banket," where it is auriferous.

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  • To these is added water, which combining chemically with the cement conglomerates the whole mixture into a solid mass, and forms a rough but strong artificial stone.

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  • The Molasse, in the neighbourhood of the mountains, consists chiefly of conglomerates and sandstones, and the Flysch consists of sandstones and shales; but the Molasse is of Miocene and Oligocene age, while the Flysch is mainly Eocene.

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  • They consist of breccias, conglomerates, sandstones, marls, and limestones, with seams of coal and lignite.

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  • The diamond is here found in ancient sandstones and conglomerates, and in the river gravels and sands derived from them.

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  • Next follow the Bala Beds, which, with the succeeding Lower and Upper Llandovery shales, sandstones and conglomerates, form the sparsely populated sheepwalks and valleys which occupy most of the north-western part of the county.

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  • These rocks are much folded and the shales are locally cleaved into slates, while the sandstones and conglomerates form scarps and ridges.

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  • Crystalline rocks crop out at several capes; Cretaceous limestones, containing an abundant and specific fauna of gigantic ammonites, occur at Dui on the west coast, and Tertiary conglomerates, sandstones, marls and clays, folded by subsequent upheavals, in many parts of the island.

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  • In the basin of the gorges Moray Firth some fine examples may be seen on the Nairn and Findhorn, while on the west side of the Cromarty Firth some of the small streams descending from the high grounds of the east of the shire of Ross and Cromarty have cut out defiles in the Conglomerates, remarkable for their depth and narrowness.

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  • There occur also below the Lias on some parts of the west coast unfossiliferous red sandstones, conglomerates and breccias, presenting lithological resemblance to the Rhaetic group of England.

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  • Red sandstones and conglomerates, probably of the same age, attain a thickness of several hundred feet at Gruinard Bay on the west coast of the county of Ross and Cromarty.

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  • The lower part of the Kimmeridge Clay is probably represented by sandstones and conglomerates, forming the highest beds of the series in Sutherland.

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  • Few seas are more prolific in fish than the Persian Gulf and the Gulf of Oman; the great proportion of known species are edible and many have a commercial value for the isinglass or oil Shelly conglomerates and dead coral reefs of the littoral; red sandhills of the coast of Trucial Oman; alluvium of Turkish Iraq; river and lake deposits of Oman and the interior of Persia.

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  • These ancient rocks, which form the foundation of the country, are overlaid unconformably by a series of conglomerates and sandstones, generally unfossiliferous and often red or purple in colour, very similar in character to the Nubian sandstone of Upper Egypt.

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  • The central plateau consists of ancient crystalline rocks with granites overlain by unfossiliferous sandstones and conglomerates considered to be of Palaeozoic age.

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  • Carboniferous beds, consisting chiefly of slates, sandstones and conglomerates, are found in the south-eastern provinces.

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  • Consisting of red sandstones, mudstones and conglomerates, they are inclined at high angles usually away from the granite massif and the encircling metamorphic rocks.

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  • The Upper Old Red Sandstone, composed of red sandstone and conglomerates, is only sparingly developed.

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  • The Triassic rocks are arranged in two groups, a lower, composed of conglomerates and sandstones, and an upper one consisting of red and mottled shales and marls with thin sandstones and nodular limestones.

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  • The Tertiary system includes conglomerates, sandstones, limestones and marls, which appear to be of Eocene, Oligocene and Miocene age.

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  • Muds, sands, grits and conglomerates are the predominant types.

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  • Thus, we find them more frequently, folded, tilted and cleaved; the muds have become shales, slates, phyllites or schists, the grey and red sands and conglomerates have become quartzites and greywackes, while the limestones are very generally dolomitized.

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  • The Cambrian system is covered by his stages "B" and "C"; the former a barren series of conglomerates and quartzites, the latter a series of grey and green fissile shales 1200 ft.

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  • In the Rennes basin limestones - often dolomitic - are associated with quartzites and conglomerates; silicious limestones also occur in the Sarthe region.

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  • In Russian Poland is a series of conglomerates, quartzites and shales; some of the beds yield a Paradoxides fauna.

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  • The shores of the Bosporus are composed in the northern portion of different volcanic rocks, such as dolerite, granite and trachyte; but along the remaining course of the channel the prevailing formations are Devonian, consisting of sandstones, marls, quartzose conglomerates, and calcareous deposits of various kinds.

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  • It occurs in a series of amygdaloidal dolerites or diabases, and in the associated sandstones and conglomerates.

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  • The deposits are marine, consisting mainly of sandstone and limestone, together with tuffs and conglomerates of porphyry and porphyrite.

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  • The Witwatersrand series of the Transvaal includes auriferous conglomerates which have been worked since 1886 and constitute the richest gold-mines in the world.

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  • But in the upper Cretaceous and lower Tertiary, especially in north-western Baluchistan, there is an extensive development of volcanic tuffs and conglomerates, which are probably contemporaneous with the Deccan Traps of India.

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  • Recent; d =Upper Siwalik conglomerates c =J,fiddle Siwalik sandstones; b=Lower (Nahan) siwalik.s; a .

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  • The deposits in these basins consist largely of coarse sandstones and conglomerates, amongst which lie seams of coal.

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  • Coalbearing clays containing fresh-water molluscs and dicotyledonous plants, as also conglomerates, alternate with the sandstones in these Tertiary deposits.

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  • Very extensive layers of melaphyre and andesite, as also of conglomerates and volcanic tuffs, cover the middle portions of the peninsula.

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  • The Lower Carboniferous beds are represented by conglomerates and sandstones with some shales and limestones.

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  • The Triassic rocks, red sandstones, marls and conglomerates cover a broad area in the Midlands in Worcestershire, Warwickshire and Leicestershire, whence they may be followed south-westward through Somerset to the coast at Sidmouth, and northward, round either flank of the Pennine Hills, through Nottinghamshire and Yorkshire to Middlesbrough on the one hand, and upon the other through Staffordshire, Cheshire and Lancashire to Carlisle.

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  • These are overlaid by sandstones, slates and limestones, alternating with porphyries and porphyrites, sometimes in the form of sheets, sometimes as breccias and conglomerates.

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  • The Ongeluk volcanic series, consisting of lavas and breccias, conformably overlies the Griquatown series; while the grits, quartzites and conglomerates of the Matsap series rest on them with a great discordance.

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  • The most remarkable deposits are the conglomerates of the Dwyka series.

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  • These are formed to a large extent of thick conglomerates which are full of pebbles and boulders of granite and schist.

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  • In the northern Apennines the elevation of the sea floor appears to have begun at an earlier period, for the Upper Cretaceous of that part of the chain consists largely of sandstones and conglomerates.

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  • The Alai is a well-defined ridge with steep slopes, and both it and the Terek-tau, which prolongs it towards the Kokshal-tau, are flanked next the Ferghana valley by what appear to be the old uplifted strata both of the old Palaeozoic series of metamorphic limestones and of the newer Tertiary series of softer conglomerates and sandstones.

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  • In some places limestones appear as projections from the range; at others conglomerates and Tertiary clay marls form the outermost fold."' On the north versant of the ranges the rainfall increases from the foot of the mountains upwards, and at woo-10,000 ft.

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  • The various decomposing volcanic rocks - tufas, conglomerates and basalts - mingled with decayed vegetable matter, and abundantly watered, form a very fertile soil.

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  • Massive conglomerates occur in these series, which are unconformable on the Dalradian rocks of Connemara.

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  • Certain western and northern granites are however older, since granite boulders occur in Silurian conglomerates derived from the Dalradian complex.

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  • The conglomerates appear at intervals through the limestone covering of central Ireland, and usually weather out as conspicuous scarps or " hog's-backs."

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  • I Silurian (and Cambrian?) "Dalradian" Metamorphic Series .Diorite and allied Basic Rocks '?-t =i=' Granite and allied Acid Rocks montory the conglomerates of this period rest with striking unconformity on the Dingle Beds and Upper Silurian series.

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  • In the latter place they contain workable coal-seams. The Carboniferous Limestone often contains black flint (chert), and at some horizons conglomerates occur, the pebbles being derived from the unconformable ridges of the " Caledonian " land.

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  • In the same region conglomerates have been found containing enormous blocks, apparently brought by glacial action, and said to be identical in character with those described as existing in the Transvaal.

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  • The lowest members of these rest directly upon the central mass of crystalline rocks, and consist of sandstones, conglomerates and shales, which have been supposed by some to belong to the Trias, without, however, the discovery of any fossil necessary to confirm this supposition, except some silicified trunks of trees.

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  • Some unfossiliferous conglomerates, sandstones and dolomites in South Africa and on the west coast are considered to belong to the Cambrian, Ordovician and Silurian formations, but merely from their occurrence beneath strata yielding Devonian fossils.

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  • The Lower Carboniferous rocks of Spain consist partly of limestones, and partly of shales, sandstones and conglomerates like the culin of Devonshire.

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  • The Permian is probably represented by some of the red sandstones, conglomerates and shales in the Pyrenees, in the Serrania de Cuenca, and in Andalusia.

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  • The Devonian system is best represented by the massive conglomerates and quartzites, which form the West Coast Range extending from Mount Lyell on Macquarie Harbour, through Mounts Jukes, Owen, Lyell, Murchison and Geikie, to Mount Black.

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  • These mountains consist of detached remnants of a sheet of quartz conglomerates, interbedded with sandstones, containing crinoid stems and obscure brachiopods.

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  • A northern extension of these conglomerates forms the Dial Range near Burnie.

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  • These are overlaid by conglomerates, limestones and clay slates of very doubtful age, the most interesting being a radiolarian clay which occurs on the south side of the Matinang Mountains, at the north end of Lake Posso, &c.; it may correspond with the radiolarian cherts of Borneo.

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  • The lowest unit, the Llandovery Series, comprises coarse sandstones and conglomerates and siltstones with abundant fossil brachiopods and trilobites.

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  • In geology, the cement of breccias and conglomerates is usually silica, iron oxides or calcite (mineral calcium carbonate ).

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  • Where there is plenty of quartz cement it produces hard sandstones and conglomerates.

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  • Evaluates how credible the government's ambition is to create world-class state-owned conglomerates.

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  • It is also a form of media that is not necessarily owned by conglomerates and can have a participatory process for management and production.

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  • The larger companies are mostly part of multi-national conglomerates.

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  • Some high school kids turn to a more healthy, natural foods diet to " stick it " to giant food conglomerates.

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  • It is the huge media conglomerates that are able to continually produce such media in return for extreme profits.

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  • The already large media conglomerates were allowed to grow larger still.

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  • When I write about ' pro-American ' I am writing about the Bush administration and the huge energy and oil conglomerates that back it.

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  • Lower Paleozoic greywacke sandstones were deposited in a deep marine environment and may have volcanic ash beds and conglomerates within.

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  • It was initially taken over by Watneys, then subsumed in one of the great conglomerates of today.

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  • The other rocks include igneous breccias, shales, coarse conglomerates and grits.

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  • Blood conglomerates, viruses and digestive fluids immediately enter the body of the victim.

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  • They include gypsum, dolomite, conglomerates, phyllites, and a basic series of eruptive rocks (gabbros, peridotites, serpentines).

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  • The conglomerate bands and quartzites contain large quantities of iron pyrites deposited subsequent to their formation, that in the conglomerates containing the gold.

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  • The geological formations thus exposed show that the plateaus are composed of a base of eruptive material, overlaid by enormous deposits of reddish sandstones, conglomerates and quartzites, exposed in parts to a depth of 2000 feet.

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  • North of the Danube, in Germany as in England, red sandstones, shales and conglomerates predominate, together with beds of gypsum and salt.

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