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Books Books 1 - 4 of 4 on Conemaugh beds and it foots up 593 feet 2 inches from the base of the Pittsburg coal....
" Conemaugh beds and it foots up 593 feet 2 inches from the base of the Pittsburg coal to the top of the Upper Freeport seam, which in this hole was found in 641 3 642 9 Depth. "
Structure of the Berea Oil Sand in the Flushing Quadrangle, Harrison ... - Page 19
by William Tudor Griswold - 1908 - 30 pages
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The American Journal of Science, Volumes 161-162

Science - 1901
...Monongahela formation differed from those of the Upper Coal-measures of Rogers in that they extended from the base of the Pittsburg coal to the top of the Washington coal, or the one succeeding the Waynesburg coal. The important point in connection with...
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Preliminary Report on the Santa Maria Oil District ..., Volume 8, Issue 317

Ralph Arnold, Robert van Vleck Anderson - Petroleum - 1907 - 69 pages
...used by them as a datum plane. FORMATIONS ABOVE THE PITTSBURG COAL MONONGAHELA FORMATION. The rocks from the base of the Pittsburg coal to the top of the Waynesburg coal are included in the Monongahela formation. This is one of the most important formations...
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Bulletin - United States Geological Survey, Issue 318

Geology - 1907
...used by them as a datum plane. FORMATIONS ABOVE THE PITTSBURG COALMONONGAHELA FORMATION. The rocks from the base of the Pittsburg coal to the top of the Waynesburg coal are included in the Monongahela formation. This is one of the most important formations...
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Bulletin - United States Geological Survey, Issue 346

Geology - 1908
...interval between the coal and limestone is 20 feet or more, it is occupied by fire clay and shale. The distance from the base of the Pittsburg coal to the top of the Pittsburg limestone was measured in 12 different places in the quadrangle, with the results shown in...
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