Variations in coal-bed thicknesses in eastern part of Illinois basin
Conference
·
· AAPG Bulletin (American Association of Petroleum Geologists); (USA)
OSTI ID:5589668
- Indiana Geological Survey, Bloomington (USA)
In the east-central part of the Illinois basin, the formation of Middle Pennsylvanian coal beds was affected by the La Salle anticlinal belt, by contemporaneous deposition of linear sandstones, and by intermittent differential volumetric changes around underlying features. These underlying features include earlier Pennsylvanian linear sandstones (75-150 ft deeper), paleovalleys of the Mississippian-Pennsylvanian unconformity (300-700 ft deeper), embayments and passes of a Silurian carbonate bank (1,900 ft deeper), and individual Silurian reefs. These influences interacted to produce abnormally thick (> 4.5 ft) deposits of the Seelyville, Survant, Springfield, and Hymera Coal Members (Pennsylvanian) within three geographically restricted areas (mining districts) in west-central Indiana.
- OSTI ID:
- 5589668
- Report Number(s):
- CONF-8909166--
- Conference Information:
- Journal Name: AAPG Bulletin (American Association of Petroleum Geologists); (USA) Journal Volume: 73:8
- Country of Publication:
- United States
- Language:
- English
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·
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Related Subjects
01 COAL, LIGNITE, AND PEAT
011000* -- Coal
Lignite
& Peat-- Reserves
Geology
& Exploration
ANTICLINES
CARBONATE ROCKS
COAL DEPOSITS
FEDERAL REGION V
GEOLOGIC AGES
GEOLOGIC DEPOSITS
GEOLOGIC STRUCTURES
ILLINOIS
MINERAL RESOURCES
MISSISSIPPIAN PERIOD
NORTH AMERICA
PALEOZOIC ERA
PENNSYLVANIAN PERIOD
REEFS
RESOURCES
ROCKS
SANDSTONES
SEDIMENTARY BASINS
SEDIMENTARY ROCKS
SILURIAN PERIOD
USA
011000* -- Coal
Lignite
& Peat-- Reserves
Geology
& Exploration
ANTICLINES
CARBONATE ROCKS
COAL DEPOSITS
FEDERAL REGION V
GEOLOGIC AGES
GEOLOGIC DEPOSITS
GEOLOGIC STRUCTURES
ILLINOIS
MINERAL RESOURCES
MISSISSIPPIAN PERIOD
NORTH AMERICA
PALEOZOIC ERA
PENNSYLVANIAN PERIOD
REEFS
RESOURCES
ROCKS
SANDSTONES
SEDIMENTARY BASINS
SEDIMENTARY ROCKS
SILURIAN PERIOD
USA