GEOLEX

Summary of Citation: Gasper

Publication:
Butts, Charles, 1917, Mississippian formations of western
   Kentucky; Descriptions and correlation of the Mississippian
   formations of western Kentucky: Kentucky Geological Survey
   [Report], 4th series, v. 5, pt. 1, 119 p., Prepared in
   cooperation with the U.S. Geological Survey.

Usage in Publication:
Gasper oolite*

Modifications:	Geologic Province:	Dominant Lithology:
Named	Cincinnati arch	Limestone Oolite

Summary:
Gasper oolite named for exposures in bluffs along Gasper River in Warren Co., south-central KY. Unit is thick-bedded limestone and oolite and in parts of Breckinridge, Meade, Hardin, Grayson, and perhaps Hart Co. it includes, near the middle, the Sample sandstone member, which has a maximum thickness of 40 ft. Total thickness of formation is greater than 100 ft. Replaces Ulrich's "Tribune limestone." Is not known west of eastern part of Crittenden Co., KY. Lies unconformably on Fredonia oolite member of Ste. Genevieve limestone, as the intervening Rosiclare and Ohara members of the Ste. Genevieve and the Bethel sandstone are absent here. Is older than Cypress sandstone. The Ridenhower shale is equivalent in part to Gasper oolite and possibly is represented only in upper part of Gasper. Age is Mississippian.

Summary of Citation: Gasper

Publication:
Nolde, J.E., 1994, Devonian to Pennsylvanian stratigraphy and
   coal beds of the Appalachian plateaus province, IN Geology
   and mineral resources of the southwest Virginia coalfield:
   Virginia Division of Mineral Resources Publication, no. 131,
   p. 1-85

Usage in Publication:
Gasper Limestone Member

Modifications:	Geologic Province:	Dominant Lithology:
Revised	Appalachian basin

Summary:
The Greenbrier Limestone of this report is divided into (ascending) Little Valley Limestone Member, St. Louis Limestone Member (Hillsdale Member of Reger, 1926), Ste. Genevieve Limestone Member, and the Gasper Limestone Member. The Gasper occupies the upper part of the Greenbrier and consists of pure micritic or sparry limestone with shale partings. Presence of species TALAROCRINUS, PTEROTOCRINUS SERRATUS Weller, and PENTREMITES GADONI (Defrance) within the Gasper supports the early Chesterian age of the uppermost Greenbrier.