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Carboniferous Geology of the Eastern United States: St. Louis, Missouri to Washington, D.C. June 28 - July 8, 1989, Volume T143

Carboniferous Geology of the Eastern United States: St. Louis, Missouri to Washington, D.C. June 28 - July 8, 1989, Volume T143

C. Blaine Cecil (Editor), James C. Cobb (Editor), Donald R. Chestnut Jr. (Editor), Heinz Damberger (Editor), Kenneth J. Englund (Editor)

ISBN: 978-1-118-66731-6

Mar 2013, American Geophysical Union

154 pages

Select type: O-Book

Description

Published by the American Geophysical Union as part of the Field Trip Guidebooks Series, Volume 143.

This guidebook was prepared for a field trip to be conducted prior to the commencement of the 28th International Geological Congress, convened in Washington, DC, July 1989. The purpose of this field trip is to examine the geologic factors that controlled the deposition of Carboniferous rocks in the Illinois and Appalachian basins, with emphasis being placed on basinal tectonic evolution, sedimentation, and paleoclimate. Throughout the trip, lithostratigraphic and biostratigraphic correlations between the Illinois and Appalachian basins will be stressed in order to provide continuity between the two areas. In addition to this, geochemical conditions of sedimentation and peat formation will be illustrated and discussed on the basis of the stratigraphic and regional distribution of chemical sediments, including coal beds. The important Mississippian/Pennsylvanian (mid-Carboniferous) boundary, and the sedimentological, paleobotanical and paleoclimatic changes associated with it, will also be emphasized.

PREFACE  ix

Overview the Mississippian in the Illinois basin  1

Stop 1 - Warsaw Shale, Ullin Limestone and Salem Limestone of the Va1meyeran Series 9

Stop 2 - Salem Limestone of the Va1meyeran Series  11

Stop 3 - Ste Genevieve Limestone and Aux Vases Sandstone  13

Stop 4 - Haney, Hardinsburg and Glen Dean Formations of the Chester Series  14

Stop 5 - Glen Dean Limestone, Tar Springs Sandstone and Vienna Limestone of Middle Chesterian 14

The Pennsylvanian of the southern Illinois basin  17

The Nature of the sub-Pennsylvanian unconformity  17

Overview of the Pennsylvanian in the Illinois basin  20

Stop 6 - Amarine sandstone within the Abbott Formation of Atokan age  26

Stop 7 - Mississippian - Pennsylvanian unconformity  28

Stop 8 - Walshville channel deposits and Herrin Illinois No.6 coal bed  30

Stop 9 - Tidally-influenced deposits of Early Pennsylvanian age  30

Stop 10 - Deltaic deposits of Early Pennsylvanian age, Caseyville Formation  33

Pennsylvanian age, Caseyville Formation  33

Carboniferous rocks of Kentucky  38

Stop 11 - Alternating Upper Mississippian terrestrial and marine sequences  39

Stop 12 - Economically important Springfield (Kentucky No.9) coal bed and distributary sandstone 43

Stop 13 - Pa1eos1ump along the upland unconformity surface  44

Stop 14 - Channel-fill at regional unconformity surface  47

Mammoth Cave  50

Stop 15 - Bioclastic biostrome in starved basin  51

Stop 16 - Borden Delta and platform carbonate transition  52

Stop 17 - Platform carbonate environments  54

Pennsylvanian rocks of the Eastern Kentucky Coal Field  57

Stop 18 - Unconformity and Lower Pennsylvanian depositional features  60

Resource perspectives of coal in Eastern Kentucky  64

Stop 19 - Magoffin Member and channel facies  66

Stop 20 - Pennsylvanian fluvial environments  68

Stop 21 - erevas se splay 71

Stop 22 - Distributary mouth bar  73

Stop 23 - Compaction ratios, tonstein and channel erosion  75

Stop 24 - IIModel Cityll river diversion cut 78

Stop 25 - Lee Formation and Pine Mountain thrust fault  so

Origin of coal deposits and associated rocks in the Carboniferous of the Appalachian basin  84

Stop 26 - Mississippian - Pennsylvanian transitional strata  89

Stop 27 - Pocahontas exhibition mine  89

Stop 28 - Stony Gap Sandstone Member  90

Stop 29 - Little Stone Gap Member  90

Stop 30 - Upper Mississippian Princetone Sandstone, Pride Shale Member and Glady Fork Sandstone  91

Stop 31 - Change in Mississippian - Pennsylvanian strata; change in paleoclimate across the boundary  93

Stop 32 - Middle Pennsylvanian Kanawha Formation  95

Stop 33 - Back-barrier facies of the Lower Pennsylvanian  97

Stop 34 - New River gorge bridge overlook 97


Stop 35 - Lower Pennsylvanian New River Formation  97

Stop 36 - Middle Pennsylvanian Charleston Sandstone and Kanawha Formations  100

Stop 37 - Upper Pennsylvanian Monongahela Group strata 101

Stop 38 - Upper Pennsylvanian Conemaugh Group strata  103

Stop 39 - Monongahela Group strata; Redstone coal bed shale/coal transition  105

Stop 40 - Conemaugh Group strata; fossiliferous Ames Limestone/shale, Harlem and Elk Lick coal beds 107

Stop 41A- Allegheny Formation - Conemaugh Group boundary, Upper Freeport and Mahoning coal beds  108

Stop 41B- Unnamed marine zone/coal bed in Middle Pennsylvanian Pottsville Group  109

Stop 41C- Mississippian - Pennsylvanian boundary  110

Stratigraphic variation in bulk sample mineralogy of Pennsylvanian underclays from the central Appalachian basin  112

Plants, coal and climate in the Pennsylvanian of the central Appalachians  118

A petrographic evaluation of environments of accumulation of the Pocahontas No. 3 coal bed in southern West Virginia  127

Palynology, petrography and paleoecology of the Hernshaw-Fire Clay coal bed in the central Appalachian basin  133

References  142