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Vitrinite Reflectance and Its Implications Regarding the Gas Content, Maximum Depth of Burial, and Paleogeothermal Gradient for Pennsylvania Coalbeds, Westmoreland County, Pennsylvania.

Authors
Ulery-JP
Source
Proc Pennsylvania Acad Sci 1984 58(1):1 pages
Link
NIOSHTIC No.
10004639
Abstract
A commonly used indicator of coal rank is vitrinite reflectance. This value was used by the Bureau of Mines to determine the rank of Pennsylvania coalbeds from a borehole drilled along the axis of the Greensburg syncline, Westmoreland County, Pennsylvania. Thermal maturity of the coalbeds, as indicated by vitrinite relfectance, was found to relate directly to byproduct gas content. An estimate of the paleogeothermal gradient based on the Karwell nomogram for coalification indicates a significantly higher paleogeothermal gradient than had been proposed earlier. The estimated paleogeothermal gradient indicates a maximum depth of burial for the allegheny coals on only 1.6 to 1.7 Km.
Publication Date
19840101
Document Type
OP;
Fiscal Year
1984
NTIS Accession No.
NTIS Price
Identifying No.
OP 54-85
Issue of Publication
1
NIOSH Division
PRC;
Source Name
Proc. Pennsylvania Acad. Sci., V. 58, No. 1, 1984, P. 107
State
PA;
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