File:Report of the geological survey of North Carolina. Vol. I. Physical geography, resumé, economical geology (1875) (14770795294).jpg

Identifier: reportofgeologic00nort (find matches)
Title: Report of the geological survey of North Carolina. Vol. I. Physical geography, resumé, economical geology
Year: 1875 (1870s)
Authors: North Carolina. State Geologist North Carolina Geological Survey (1883-1905)
Subjects: Geology
Publisher: Raleigh : J. Turner, State printer and binder
Contributing Library: Boston Public Library
Digitizing Sponsor: Internet Archive

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he coal deposits of the Carboniferous formation. The coal with its shales outcrops along the northern margin of the beltat various points, for more than 15 miles; and many shafts having beensunk to, and through the main seam, which is the upper one, it is ascer-tained to be very persistent in all its characteristics and associated beds.The outcrops may be traced almost continuously to the gulf, 3 mileswest of Egypt. The annexed map of the outcrop at this point is copiedfrom a local survey made in connection with some mining operations car-ried on here during the war. And the section (on the line A—B) isadded from a shaft recently sunk to a depth of 20 feet through the twoupper seams of coal and the intervening stratum of black band. Thedip is 32° south. The section is as follows: Clack slates and shales, 8 feet, (from the surface). Fire clay and ball ore, 4 Coal, 4 Black band, nearly 2 Coal, li Black slates, , at bottom. O Q o o w ei E-i<5 <O O o ;z;o 1—( HO m oMo & o
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OUTLINES. 145 On Dan River the coal first shows itself on the surface about 3 mileseast of Germanton, being imperfectly exposed in a ravine. The coal isabont 3 feet thick. Some 6 or 1 miles further east, at Stokesbnrg, thereare outcrops of three scams in succession, the upper about 3 feet thick,with a heavy body of bituminous shales ; the other two were not wellenough exposed for measurement, but they were explored by a very in-telligent gentleman who reports one of them as much thicker than thetop seam. The black shales and slates crop out at various points aboutthe town of Madison ; and near Leaksville a slope was driven some 60feet on the coal eeam which is here 3 feet thick, and with a dip of 34°and considerable quantities were mined during the war. It is classed asa semi-bituminous or dry coal. The outcrops show that the coal is con-tinuous through the whole length of the belt in this State, which is above30 miles. The thickness of tliE Triassic series Dr. Emmons estimates at a

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