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Allegheny anticlinal Armstrong county axis band Barren Measures bed of coal Black Lick Creek Black slates Blairsville Blairsville Basin Bolivar Cambria county centre Chestnut Ridge Clearfield county Coal Measures coal seam Conemaugh river Crooked Creek crosses deposit east exposed exposures farm fire clay Freeport limestone Furnace geological Heshbon HHHH hundred feet impure Indiana anticlinal Indiana County interval Johnstown Cement bed Land Laurel Hill Lick gap Ligonier Basin Ligonier Valley lime Little Mahoning Creek Little Yellow Creek Lockport Lower Barren rocks Lower Freeport coal Lower Productive Coal Lower Productive group Lower Productive rocks Mahoning Creek Mahoning Sandstone Marion massive miles mill mined mountain nearly Nolo anticlinal northeast outcrop Pennsylvania Pittsburg coal bed Productive Coal Measures ravine Red shales region rise Saltsburg shales shows slopes specimen strata stratum stream Sulphur summit surface synclinal thin trough Upper Freeport coal Volatile matter water level West Lebanon White Oak
Page iv - FRANKLIN PLATT — Geologist in charge of the Survey of Blair county, and the coal fields of Tioga, Bradford, Potter, Lycoming, Sullivan and Wyoming counties. WA FELLOWS.
Page iii - PARDEE, ---------- Hazleton. WILLIAM A. INGHAM, ------- Philadelphia. HENRY S. ECKERT, -------- Reading. HENRY MCCORMICK, -------- Harrisburg. JAMES MACFARLANE, -------- Towanda. JOHN B. PEARSE, - - - - Philadelphia. JOSEPH WILLCOX, -------- Philadelphia. Hon. DANIEL J. MORRELL, ------ Johnstown. HENRY W. OLIVER, - - - Pittsburgh. SAMUEL Q. BROWN, - - Pleasantville. SECRETARY OF THE BOARD. WILLIAM A. INGIIAM, Philadelphia. STATE GEOLOGIST. PETER LESLEY, Philadelphia. 188O. ASSISTANT GEOLOGISTS. PERSIFOR...
Page iv - Ac. 1008 Clinton street, Philadelphia. CHARLES ALLEN — Assistant in locating outcrops in Delaware county, and for Records of Railroad and other Levels, Harrisburg. FW FORMAN— Clerk in charge of the Publications of the Survey, 223 Market street, Harrisburg.
Page 174 - ... 10 feet thick, but in a few rods becomes a sandstone, which rests directly on the coal. The shales between the coal seams thicken and thin variously. At one place where this appearance presents itself the coal seemingly terminates in the sandstone. Near the place where these disappear with a, west dip beneath the water level the massive sandstone resting on the coal changes wholly to shale for a thickness of 12 feet ; the sandstone then presents a vertical wall, 40 or 50 feet thick, in coarse...