Glacial-drift sentence example

glacial-drift
  • Much of the Triassic area is covered superficially by glacial drift and alluvium of the Trent.
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  • The disturbances among the underlying rocks of Ohio have been slight, and originally the surface was a plain only slightly undulating; stream dissection changed the region to one of numberless hills and valleys; glacial drift then filled up the valleys over large broken areas, forming the remarkably level till plains of northwestern Ohio; but at the same time other areas were broken by the uneven distribution of the drift, and south-eastern Ohio, which was unglaciated, retains its rugged hilly character, gradually merging with the typical plateau country farther S.E.
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  • Slates and fine-grained sandstones appear here freely through the glacial drift.
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  • West of the Missouri river the sheet of glacial drift is absent, and the lands everywhere show evidence of extensive stream erosion.
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  • The glacial drift east of the Missouri river, unlike that of the New England states, is remarkably free from boulders and gravel, except in a few morainic belts.
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  • In earlier literature the Lafayette formation was described under the name of Orange Sand, and was at one time thought to be the southern equivalent of the glacial drift.
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  • This, however, is now known not to be the case, as remnants of the formation, isolated by erosion, lie under the old glacial drift in Illinois, and perhaps elsewhere.
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  • The north-west and north-east sections contain some glacial drift but the soil in these parts is not suitable for cultivation except in the larger valleys in the north-west where it is drained by glacial gravel or there is some sandy loam mixed with clay.
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  • The appearance of northern shells in the upper divisions of the Pliocene series indicates the approach of the Glacial period, and glacial drift containing Scandinavian boulders now covers much of the country east of the Zuider Zee.
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  • There are, besides, numerous mountain tarns of small size, most of them in hollows barred by the glacial drift which covers a great part of the district.
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  • The glacial drift is also a useful deposit, coarse ingredients in it being of small amount (rare boulders, and some gravel).
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  • Two glaciers converged across the North Shropshire Plain leaving thick layers of glacial drift.
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