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Allegheny Mountain Allegheny river anticlinal axis band bed of coal Berlin Black slate Cambria county Castleman river centre clay Clearfield Clearfield county coal and limestone Coal Measures Coal Slate Coal smut Conglomerate deposit east Elk Lick coal exposed farm feet of coal feet thick ferriferous limestone Fire-clay shale Fixed carbon Freeport bed Freeport group Hooversville impure Interval iron pyrites Johnstown Laurel Hill creek lime Lower Barren Measures Lower Productive coal Mahoning Sandstone massive Meyersdale Middle Freeport miles mill mined Mineral Point Negro Mountain north-east north-west opened outcrop overlying Pittsburg bed Pittsburg coal bed Productive Coal Measures quarry railroad ravine region Report ridge rise rocks Salisbury Basin seam short distance shows Slate Coal slaty slope Somerset county south-east south-west specimen Stony creek Stoystown stream Sulphur synclinal thin township underlaid upper bench Upper Freeport coal valley vertical section Volatile matter water level yields
Page 181 - ... measures. The previous Reports of Progress, (H, 1874, and HH, 1875,) in Cambria, Clearfield, Centre and Jefferson counties, give numerous measurements and analyses of the bed in the different localities ; the well known firebrick works at Sandy Ridge, Blue Ball, Woodland and Hope Station, in Clearfield county ; Benezette, in Elk county ; Brookville, in Jefferson county, and Queen's Run and Farrandsville, in Clinton county, all derive their fire-clay from this bed. The coal bed runs about 3J feet...
Page xxiii - X II. THE DEVONIAN SYSTEM. 1. Catskill Sandstone (Old Red) (? Oil Sand Group) IX 2. Chemung sands and shales, ~| 3. Portage shales and sands, 4. Hamilton formation, Genesee black shales, VIII Hamilton sandstones, Juniata River Coal Group, Marcellus black shales, 5.
Page iv - SANDERS — Topographical Assistant in Blair, and Somerset. JJ STEVENSON— Geologist in charge of the Survey of Greene, Washington, Fayette and Westmoreland. IC WHITE — In charge of the Survey of Beaver, Lawrence, Mercer, Ac.
Page iii - Hon. DANIEL J. MORRELL, Johnstown. HENRY W. OLIVER, Pittsburg. SAMUEL Q. BROWN, Pleasantville. SECRETARY OF THE BOARD. JOHN B. PEARSE, Philadelphia. STATE GEOLOGIST.
Page xxiii - River Coal Series. Upper Barren Measures. a. Greene County Group. 6. Washington County Group. Upper Productive Coal Measures. •2. Allegheny River Coal Series. Lower Barren Measures. Lower Productive Coal Measures. a. Freeport Coal Group. 6.
Page 23 - Conglomerate the rocks are well known. The hiatus in the section does not amount to as much as 100 feet, for 500 feet of Barren Measures have been measured, and the group is here certainly not in excess, if at all, of its normal thickness of from 550 to 600 feet. The developments between Berlin and Pine Hill Church are very complete. By their aid the several coal beds and limestone strata may be easily followed throughout this distance. The following compiled section shows the several important strata...
Page iv - Chemist, in charge of the Laboratory of the Survey, 223 Market street, Harrisburg. CE HALL, Fossil Zoologist, in charge of the Collections for the Museum. LEO LESQUEREUX— Fossil Botanist, Columbus, Ohio.
Page 3 - Castleman river, in the vicinity of Meyersdale, in Summit township, the basin is observed to become even deeper, and all the Lower Barren Measure rooks, forming a group full 550 feet thick, have by this time sunk to a sufficient depth to permit the Great Pittsburg coal seam, capped by nearly two hundred feet of rock, to appear in the hills. From Meyersdale to the Maryland line this famous coal bed ranges along the centre of the basin, confining itself to a narrow area, which grows steadily narrower...
Page iv - JR — Geologist In charge of the Surrey of Lehigh, Northampton, Berks and Lebanon. AP BERLIN — Topographical Assistant. JOHN H. DEWEES— Geologist in charge of the Survey of the Fossil Ore belts of the Juniata country.
Page 207 - Cambria and Clearfield counties to thenorth-east. The Viaduct sub-axis has been elsewhere described in detail ; and of Laurel Hill little more need be said than that it is a broad, regularly shaped, massive mountain of anticlinal structure, from the top of which the Productive coal measures have been swept away by eroding waters until not a trace of them remains. The Great Pottsville Conglomerate is therefore uncovered all along the top of the mountain, from the Conemaugh to the Youghiogheny, but...