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flood-plain

flood-plain

flood-plain Sentence Examples

  • On the south side, above the Xingu, a line of low bluffs extends, in a series of gentle curves with hardly any breaks nearly to Santarem, but a considerable distance inland, bordering the flood-plain, which is many miles wide.

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  • Much high and dry "made" land has been reclaimed from the river flood-plain.

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  • Nearly all of this vast flood-plain lies below the level of high water in the Mississippi, and, but for the protection afforded by the levees, every considerable rise of its waters would inundate vast areas of fertile and cultivated land.

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  • Matthew, and are shown to contain fluviatile or channel beds with water and river-living forms, and neighbouring flood-plain sediments containing remains of plains-living forms. Thus we may complete the former physiographic picture of a vast flood plain east of the Rocky Mountains, traversed by slowly meandering streams.

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  • below St Paul), a picturesque expansion of the river across its flood-plain, is due to the aggradation of the valley floor where the Chippewa river, coming from the north-east, brought an overload of fluvio-glacial drift.

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  • In the rainy season it inundates the country throughout its course to the extent of several hundred thousand square miles, covering the flood-plain, called vargem.

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  • The valley floor of the North Platte in the foot-hills, the flood-plain of an older river, is in places 700 ft or more below the bounding tableland, and 10 to 15 m.

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  • Through its great flood-plain the Mississippi river winds upon the summit of a ridge formed by its own deposits.

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  • from the mouth of the Big Sioux river, extends a line of mound-like bluffs usually free from rocks, but rising abruptly from the flood plain of the Missouri to a height varying from TOO to 300 ft, A broad water-parting extending from Spirit lake, on the northern border, nearly S.

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  • Since fossils afford an immediate and generally a decisive clue to the mode of deposition of rocks, whether marine, lacustrine, fluviatile, flood plain or aeolian, they lead us naturally into palaeophysiography.

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  • deep, with a flood-plain 2 to 4 m.

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  • The special features of the Gulf Plain are the peninsular extension of the plain in Florida, the belted arrangement of relief and soils in Alabama and in Texas, and the Mississippi embayment or inland extension of the plain half-way up the course of the Mississippi river, with the Mississippi flood plain there included.

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  • in area, enclosed by bluffs one or two hundred feet high in the northern part, generally decreasing to the southward, but with local increase of height associated with a decrease in flood plain breadth on the eastern side where the Grand Gulf cuesta is traversed.

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  • The valley floor is covered with a flood plain of fine silt, having a southward slope of only half a foot to a mile.

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  • Hence at a short distance from the river the flood plain is often swampy, unless its surface is there aggraded by the tributary streams: for this reason Louisiana, Arkansas and Mississippi rank next after Florida in swamp area.

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  • The flood-plain of the Mississippi has an area of 50,000 sq.

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  • Or the stream by cutting into another stream (piracy), but cutting through a barrier near its head waters, by entering a region of looser or softer rock; and by glacial drainage, may form a flood plain simply by filling up its valley (alluviation only).

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  • course, such as a band of hard rock, may form a flood plain behind it, and indeed anything which checks a river's course and causes it to drop its load will tend to form a flood plain; but it is most commonly found near the mouth of a large river, such as the Rhine, the Nile, or the Mississippi, where there are occasional floods and the river usually carries a large amount of sediment.

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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 flood plain during its formation is marked by meandering, or anastomosing streams, ox-bow lakes and bayous, marshes or stagnant pools, and is occasionally completely covered with water.

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  • When the drainage system has ceased to act or is entirely diverted owing to any cause, the flood plain may become a level area of great fertility, similar in appearance to the floor of an old lake.

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  • The flood plain differs, however, inasmuch as it is not altogether flat.

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  • Excepting the embayment region, Missouri lies wholly within the Carolinian area of the Upper Austral life-zone; the There has been some controversy as to whether this condition is due to the elevation and corrosion of original flood-plain meanders after their development in a past base-level condition - which theory is probably correct - or to the natural, simultaneous lateral and vertical cut of an originally slightly sinuous stream, under such special conditions of stream declivity and horizontal bedstrata (conditions supposed by some to be peculiarly fulfilled in this region) as would be favourable to the requisite balance of bank cutting and channel incision.

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  • high along the lower river; but, a few miles above Santarem, they retire from the eastern side and only approach the Amazon flood-plain some miles below Santarem.

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  • wide; the present flood-plain being from I to 4 m.

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  • - Tennessee is traversed in the east by the Unaka Ridges of the Older Appalachian Mountains and by the Great Appalachian Valley; in the middle by the Cumberland Plateau, the Highland Rim Plateau, and the Nashville Basin of the Appalachian Plateau; and in the west by the Gulf Coastal Plains and a narrow strip of the Mississippi Flood Plain.

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  • or less on the Mississippi Flood Plain in the S.W.

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  • Westward from the Lower Tennessee river the surface of the East Gulf Coastal Plain rises rapidly to the summit of a broken cuesta or ridge and then descends gently and terminates abruptly in a bluff overlooking the Mississippi Flood Plain.

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  • The deep deposit of silt on the Mississippi Flood Plain is even more fertile.

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  • Pulborough, St Mary, like Wisborough Green's St. Peter, sits on high ground overlooking a flood plain of the River Arun.

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  • The river has an extensive flood plain which is still regularly inundated.

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  • Through its great flood-plain the Mississippi river winds upon the summit of a ridge formed by its own deposits.

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  • Nearly all of this vast flood-plain lies below the level of high water in the Mississippi, and, but for the protection afforded by the levees, every considerable rise of its waters would inundate vast areas of fertile and cultivated land.

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  • from the mouth of the Big Sioux river, extends a line of mound-like bluffs usually free from rocks, but rising abruptly from the flood plain of the Missouri to a height varying from TOO to 300 ft, A broad water-parting extending from Spirit lake, on the northern border, nearly S.

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  • Since fossils afford an immediate and generally a decisive clue to the mode of deposition of rocks, whether marine, lacustrine, fluviatile, flood plain or aeolian, they lead us naturally into palaeophysiography.

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  • Matthew, and are shown to contain fluviatile or channel beds with water and river-living forms, and neighbouring flood-plain sediments containing remains of plains-living forms. Thus we may complete the former physiographic picture of a vast flood plain east of the Rocky Mountains, traversed by slowly meandering streams.

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  • deep, with a flood-plain 2 to 4 m.

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  • below St Paul), a picturesque expansion of the river across its flood-plain, is due to the aggradation of the valley floor where the Chippewa river, coming from the north-east, brought an overload of fluvio-glacial drift.

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  • The special features of the Gulf Plain are the peninsular extension of the plain in Florida, the belted arrangement of relief and soils in Alabama and in Texas, and the Mississippi embayment or inland extension of the plain half-way up the course of the Mississippi river, with the Mississippi flood plain there included.

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  • in area, enclosed by bluffs one or two hundred feet high in the northern part, generally decreasing to the southward, but with local increase of height associated with a decrease in flood plain breadth on the eastern side where the Grand Gulf cuesta is traversed.

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  • The valley floor is covered with a flood plain of fine silt, having a southward slope of only half a foot to a mile.

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  • Hence at a short distance from the river the flood plain is often swampy, unless its surface is there aggraded by the tributary streams: for this reason Louisiana, Arkansas and Mississippi rank next after Florida in swamp area.

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  • The flood-plain of the Mississippi has an area of 50,000 sq.

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  • Much high and dry "made" land has been reclaimed from the river flood-plain.

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  • Or the stream by cutting into another stream (piracy), but cutting through a barrier near its head waters, by entering a region of looser or softer rock; and by glacial drainage, may form a flood plain simply by filling up its valley (alluviation only).

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  • course, such as a band of hard rock, may form a flood plain behind it, and indeed anything which checks a river's course and causes it to drop its load will tend to form a flood plain; but it is most commonly found near the mouth of a large river, such as the Rhine, the Nile, or the Mississippi, where there are occasional floods and the river usually carries a large amount of sediment.

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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 flood plain during its formation is marked by meandering, or anastomosing streams, ox-bow lakes and bayous, marshes or stagnant pools, and is occasionally completely covered with water.

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  • When the drainage system has ceased to act or is entirely diverted owing to any cause, the flood plain may become a level area of great fertility, similar in appearance to the floor of an old lake.

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  • The flood plain differs, however, inasmuch as it is not altogether flat.

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  • Excepting the embayment region, Missouri lies wholly within the Carolinian area of the Upper Austral life-zone; the There has been some controversy as to whether this condition is due to the elevation and corrosion of original flood-plain meanders after their development in a past base-level condition - which theory is probably correct - or to the natural, simultaneous lateral and vertical cut of an originally slightly sinuous stream, under such special conditions of stream declivity and horizontal bedstrata (conditions supposed by some to be peculiarly fulfilled in this region) as would be favourable to the requisite balance of bank cutting and channel incision.

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  • high along the lower river; but, a few miles above Santarem, they retire from the eastern side and only approach the Amazon flood-plain some miles below Santarem.

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  • In the rainy season it inundates the country throughout its course to the extent of several hundred thousand square miles, covering the flood-plain, called vargem.

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  • On the south side, above the Xingu, a line of low bluffs extends, in a series of gentle curves with hardly any breaks nearly to Santarem, but a considerable distance inland, bordering the flood-plain, which is many miles wide.

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  • The valley floor of the North Platte in the foot-hills, the flood-plain of an older river, is in places 700 ft or more below the bounding tableland, and 10 to 15 m.

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  • wide; the present flood-plain being from I to 4 m.

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  • - Tennessee is traversed in the east by the Unaka Ridges of the Older Appalachian Mountains and by the Great Appalachian Valley; in the middle by the Cumberland Plateau, the Highland Rim Plateau, and the Nashville Basin of the Appalachian Plateau; and in the west by the Gulf Coastal Plains and a narrow strip of the Mississippi Flood Plain.

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  • or less on the Mississippi Flood Plain in the S.W.

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  • Westward from the Lower Tennessee river the surface of the East Gulf Coastal Plain rises rapidly to the summit of a broken cuesta or ridge and then descends gently and terminates abruptly in a bluff overlooking the Mississippi Flood Plain.

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  • The deep deposit of silt on the Mississippi Flood Plain is even more fertile.

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  • This is the Hortobágy, an ancient flood-plain that contains not only steppe grasslands, but also a chain of wetlands of international importance.

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