About This Item

Share This Item

The AAPG/Datapages Combined Publications Database

AAPG Bulletin


Volume: 68 (1984)

Issue: 2. (February)

First Page: 130

Last Page: 136

Title: Thermal History of Michigan Basin

Author(s): Karen Rose Cercone (2)

Article Type: Meeting abstract


The elevated organic maturity observed in shallowly buried units from the Michigan basin implies that higher temperatures and thicker overburdens once existed in the basin. Evidence from sediment-accumulation rates, regional dips, and maturity of Pennsylvanian-age coals suggests that up to 1,000 m (3,280 ft) of sediment were removed by erosion prior to the Late Jurassic, when the basin became stable. Geothermal gradients during Paleozoic basin subsidence probably ranged from 35° to 45°C/km (19° to 25°F/1,000 ft), in contrast to the average present value of 25°C/km (14°F/1,000 ft). Depths to the top of the oil window ranged from 1,900 to 2,300 m (6,230 to 7,540 ft) during the Paleozoic. Post-Pennsylvanian erosional uplift and further thermal m turation of the basin have combined to raise the top of the oil window to its present level of 500 m (1,640 ft).

Pay-Per-View Purchase Options

The article is available through a document delivery service. Explain these Purchase Options.

Protected Document: $10
Internal PDF Document: $14
Open PDF Document: $24

AAPG Member?

Please login with your Member username and password.

Members of AAPG receive access to the full AAPG Bulletin Archives as part of their membership. For more information, contact the AAPG Membership Department at [email protected].