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The AAPG/Datapages Combined Publications Database

AAPG Bulletin


Volume: 28 (1944)

Issue: 4. (April)

First Page: 531

Last Page: 540

Title: "Corniferous" at Irvine, Estill County, Kentucky

Author(s): A. C. McFarlan, L. B. Freeman, V. E. Nelson


The "Corniferous" as a name for an important producing zone in Kentucky has been something of a catch-all for a number of different Silurian and Devonian limestones underlying the Ohio shale, a matter of unconformity and regional overlap. A thick Silurian limestone section east of the Cincinnati arch wedges out westward in the vicinity of Irvine. This stratigraphic trap has been productive in the Irvine-Big Sinking field, and in the Ragland and Menifee pools.

Erosion remnants of this Silurian wedge are recognized in outcrop in the vicinity of Irvine, Estill County, overlapped by the eastward feathering edge of the Boyle limestone. These stratigraphic relationships in outcrop give an insight into the complicated underground situation in the near-by productive area. Subsurface studies in the vicinity complete the picture.

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