Long-range petroleum migration in the Illinois Basin

C. M. Bethke, J. D. Reed, D. F. Oltz

Research output: Contribution to journalArticlepeer-review


Oils from reservoirs in Silurian strata from central and western Illinois can be correlated geochemically and isotopically to bitumen from the New Albany near the southern tip of Illinois. We believe that these oils migrated long distances, perhaps 100 km (62 mi) or more from the south or south-east. Migration probably occurred late in the basin's history, after basin sediments were fully compacted, in response to a regional northward flow system set up by tectonic uplift in the south. We suggest that the oil migrated through Devonian and Silurian carbonates along the weathered and karstified surface of a regional unconformity that formed during Kaskaskia deposition. -from Authors

Original languageEnglish (US)
Pages (from-to)925-945
Number of pages21
JournalAmerican Association of Petroleum Geologists Bulletin
Issue number5
StatePublished - Jan 1 1991

ASJC Scopus subject areas

  • Fuel Technology
  • Energy Engineering and Power Technology
  • Geology
  • Geochemistry and Petrology
  • Earth and Planetary Sciences (miscellaneous)

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