Identifier: northcarolinaits00stew (find matches)
Title: North Carolina and its resources
Year: 1896 (1890s)
Authors: Stewart, M. I. (Moses I.) prt Stewart, J. C. (John C.) prt North Carolina. Board of Agriculture
Subjects:
Publisher: Winston : M.I. & J.C. Stewart, public printers and binders
Contributing Library: University Library, University of North Carolina at Chapel Hill
Digitizing Sponsor: University of North Carolina at Chapel Hill

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oastal Plain are shown as a unit for the reason that notwithstand-ing that they belong to at least five successive geologic periods, 5^etbeing spread one directly on top of the other it is impossible to indi-cate them individually on a map of this character. The Coastal Plain region, as indicated above, along its easternboarders contains the sounds, bays, the sand dunes and ridges, theswamps and marshes and other characteristics of a seashore region.Further inland it is generally level, and has more of the upland andless of the marsh. Toward its western boundary the swamps nearlyor quite disappear, the upland predominates, the surface becomesmore undulating and even hilly in places, and soils which furthereastward were composed of fine sand and silt, along the western bor-der of this region contains a larger proportion of coarse sand or gravelmingled with clay. Along the banks of such rivers as the Cape Fear and Roanokewhere these streams have cut down through the surface and left the
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GBOI.OGY. 69 high steep bluffs the material composing half a dozen geologic forma-tions are exposed to view, the oldest, the Potomac gravel, sands andclays, lying at the bottom on the irregular surface of granite andslates; cretaceous sands and clays; tertiary (eocene and miocene)marls and clays; the I^afayette yellow and brownish sands and loams;and the Columbia sands, gravels and clays, lying one successivelyabove the other—the last of these, the youngest of all, being on top.Along the western border of these Coastal Plain formations occasionaloutcrops of hard granites and slates are exposed along the beds ofstreams where the once overlying sands and clays have been washedaway, but besides these no large masses of hard rock are to be foundin this region other than the limited beds of limestone which areexposed along the banks of the streams in a number of easterncounties, epecially in the southern portion of the state. In these southeastern counties, the limestone is exposed at th

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