Depositional Settings of Texas Lignites: Dallas to San by Walter B. Ayers Jr., John A. Breyer, Robert B. Finkelman

By Walter B. Ayers Jr., John A. Breyer, Robert B. Finkelman

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Published through the yank Geophysical Union as a part of the Field journey Guidebooks Series

all over the world, coal is the main ample fossil-fuel source. Low-rank coal (subbituminous and lignite) constitutes 29 percentage of the proved recoverable reserves1 on the planet and forty three percentage of these reserves within the united states, which includes the best proved recoverable reserves of low-rank coals (Table 1)(NCA, 1986). In 1984, 26 percentage of the coal produced on the planet was once lignite, and Germany (DR) led all lignite manufacturers (Table 1).

Coal makes up seventy two percentage of the U.S. fossil-fuel source; notwithstanding, it bills for less than 23 percentage of the power ate up (Halbouty, 1988; Tellmann, 1988). Coal creation is without doubt one of the biggest industries within the united states, the place coal is used basically to generate electrical energy. In 1987, electrical utilities used seventy eight percentage of the household construction to generate fifty seven percentage of the electrical energy utilized in the U.S. (Landmarc, 1988; Tellmann, 1988). different coal markets contain normal undefined, metal production, and exportation.


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Additional info for Depositional Settings of Texas Lignites: Dallas to San Antonio, Texas, July 4-8, 1989

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65, pp. 1099-1109, 1981. A. Bauer, D. P. B. W. R. Kaiser, Estimation of coal resources in Texas Gulf Coast, Ohio Northern Appalachian, and Wyoming Powder River Basins: a comparison of statistical approaches, UT Austin, Bur. Econ. , 1983.

F. Hentz, and R. J. Finley for reviewing this manuscript. Published with pennission of the Director, Bureau of Economic Geology, The University of Texas at Austin. , Geologic settings of lignite in the Wilcox Group of east-central Texas and the Jackson Group of South Texas, this volume. B. J. A. Benson, pp. , 1987. D. , College Station, 1985. , Lignite depositional models, Texas Eocene: a regional approach to coal geology, in Proceedings ofthe Basic Coal Science Workshop, Houston, Texas, 1981, pp.

O 25 50 m H AREA South A t-3 -' 00 I'\) w ~ T I '. --ft (488ml ~1600 c~~rr It I (~m)----------------~---~----------- ~2500 I ~~ FIGURE 2 Sketch of east highwall of "F' area in Sandow mine is from photomosaic. Channel-fill sands (framework facies) cut out the rider lignite seam at north end. Lateral accretion surfaces (A) and large-scale trough crossbeds are common within the channel. Large-scale trough crossbedded sands constitute a horizontally bedded unit (C) that separates two channels. Aoodbasin muds (B) underlie and overlie the channels.

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