Illinois Basin area

E812279
sedimentary basin structural basin

The Illinois Basin area is a major structural and sedimentary basin in the central United States, primarily underlying parts of Illinois, Indiana, and Kentucky, known for its thick Paleozoic rock sequences and significant fossil fuel and mineral resources.

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Observed surface forms (2)

Surface form Occurrences
Illinois Basin 1
Illinois Basin region 1

Statements (46)

Predicate Object
instanceOf sedimentary basin ⓘ
structural basin ⓘ
boundedBy Cincinnati Arch NERFINISHED ⓘ
Kankakee Arch NERFINISHED ⓘ
Ozark Uplift NERFINISHED ⓘ
contains Illinois Basin coalfield NERFINISHED ⓘ
containsStratigraphy Cambrian system NERFINISHED ⓘ
Devonian system NERFINISHED ⓘ
Mississippian system NERFINISHED ⓘ
Ordovician system ⓘ
Pennsylvanian system NERFINISHED ⓘ
Permian system (locally thin or absent) ⓘ
Silurian system NERFINISHED ⓘ
country United States of America ⓘ
surface form: United States
depositionalHistory marine shelf and shallow sea deposition during Paleozoic ⓘ
developedDuring late Precambrian to early Paleozoic subsidence ⓘ
economicImportance major fossil fuel province in the midcontinent region ⓘ
geologicAge Paleozoic ⓘ
hasAlternativeName Illinois Basin area NERFINISHED ⓘ
hasMaximumThickness more than 4,000 meters of sedimentary rocks ⓘ
hasResource coal ⓘ
dolomite ⓘ
fluorspar ⓘ
groundwater aquifers ⓘ
lead-zinc mineralization ⓘ
limestone ⓘ
natural gas ⓘ
oil shale ⓘ
petroleum ⓘ
hasRockSequence thick Paleozoic sedimentary rocks ⓘ
hasShape broad asymmetrical structural depression ⓘ
hasStructuralFeature basin axis trending northwest-southeast ⓘ
gentle regional dip toward basin center ⓘ
knownFor Mississippian carbonate reservoirs ⓘ
extensive coal-bearing Pennsylvanian strata ⓘ
locatedIn Illinois ⓘ
Indiana ⓘ
Kentucky ⓘ
overlies Precambrian basement rocks ⓘ
partOf central United States ⓘ
researchImportance key area for studying Paleozoic stratigraphy of the midcontinent ⓘ
tectonicSetting interior cratonic basin ⓘ
usedFor coal mining ⓘ
groundwater supply ⓘ
oil and gas production ⓘ
underground natural gas storage ⓘ

Referenced by (3)

Full triples — surface form annotated when it differs from this entity's canonical label.

Harrodsburg Limestone → region → Illinois Basin area ⓘ
Salem Limestone formation → stratigraphicUnitOf → Illinois Basin area ⓘ
subject surface form: Salem Limestone
this entity surface form: Illinois Basin
Edwards County, Illinois → partOf → Illinois Basin area ⓘ
this entity surface form: Illinois Basin region