GEOLEX

Summary of Citation: Brush Creek

Publication:
White, I.C., 1878, Report of progress in the Beaver River district
   of the bituminous coal-fields of western Pennsylvania, with
   analyses of coal, cannel, coke, clay, limestone, and ore,
   from Butler and Beaver Counties, Pennsylvania by A.S. McCreath:
   Pennsylvania Geological Survey Report of Progress, 2nd series,
   v. Q, 337 p.

Usage in Publication:
Brush Creek limestone

Modifications:	Geologic Province:	Dominant Lithology:
Named	Appalachian basin	Limestone Shale

Summary:
Named Brush Creek limestone of what is called the lower barren measures series. Varies greatly in appearance, from a black calcareous shale, 4 to 5 feet thick, or compact limestone, 1 to 2 feet thick. Often has a peculiar slaty and arenaceous aspect, and sometimes contains so much iron as to be used as an ore. Usually fossiliferous. Occurs 510 ft below the Pittsburg coal. Lies 10 to 15 ft above the Brush Creek coal.

Summary of Citation: Brush Creek

Publication:
Flint, N.K., 1951, Geology of Perry County: Ohio Division of
   Geological Survey Bulletin, 4th series, no. 48, 234 p.

Usage in Publication:
Brush Creek limestone member

Modifications:	Geologic Province:	Dominant Lithology:
Overview	Appalachian basin

Summary:
Designated Brush Creek limestone member of Brush Creek cyclothem of Conemaugh series. Lithology of Brush Creek is diversified but is dominantly some kind of limestone. Different facies are: (1) gray greenish crystalline limestone, (2) dark-gray sandy micaceous limestone, 3) buff to yellowish-brown, finely crystalline limestone containing abundant patches of chert and flint, and (4) very ferruginous fossiliferous dense limestone. Everywhere bears a marine fauna. Average thickness is little more than 2 ft; ranges in thickness from 3 in. to 10 ft.

Summary of Citation: Brush Creek

Publication:
Shaffner, M.N., 1963, Geologic and mineral resources of the
   Donegal quadrangle, Pennsylvania: Pennsylvania Geological
   Survey Topographic and Geologic Atlas, 4th series, 48, 116
   p., scale 1:62,500

Usage in Publication:
Brush Creek limestone and coal

Modifications:	Geologic Province:	Dominant Lithology:
Overview	Appalachian basin

Summary:
Designated Brush Creek limestone and coal of Conemaugh Formation. The limestone is dark gray, impure, abundantly fossiliferous and has a maximum observed thickness of 14 in. The coal occurs about 10 ft below the limestone and is separated from it by carbonaceous shale. This group of beds has widespread distribution in southwestern PA. The limestone occurs about 100 ft above the Upper Freeport coal.

Summary of Citation: Brush Creek

Publication:
Sharps, J.A., 1967, Geologic map of the Fallsburg quadrangle,
   Kentucky-West Virginia, and the Pritchard quadrangle in
   Kentucky: U.S. Geological Survey Geologic Quadrangle Map,
   GQ-584, 1 sheet, scale 1:24,000

Usage in Publication:
Brush Creek Limestone Member*

Modifications:	Geologic Province:	Dominant Lithology:
Overview	Appalachian basin

Summary:
Designated Brush Creek Limestone Member of Conemaugh Formation. Consists of grayish-to yellowish-brown, finely to coarsely crystalline, fossiliferous limestone, 0.5 to 4 feet thick, generally about 1 foot thick. Locally a 2-foot-thick olive-brown fossiliferous siltstone occurs in middle. Occurs in lower part of Conemaugh Formation.

Summary of Citation: Brush Creek

Publication:
Rice, C.L., Hiett, J.K. and Koozmin, E.D., 1994, Glossary of
   Pennsylvanian stratigraphic names, central Appalachian basin,
   IN Rice, C.L., ed., Elements of Pennsylvanian stratigraphy,
   central Appalachian basin: Geological Society of America
   Special Paper, 294, p. 115-155

Usage in Publication:
Brush Creek Limestone Member*/limestone

Modifications:	Geologic Province:	Dominant Lithology:
Overview	Appalachian basin

Summary:
Brush Creek Limestone Member in lower part of Conemaugh Formation is used in PA, WV, and KY as a formal member; in OH, used as an unranked limestone in Conemaugh Group. Called Upper and Lower Brush Creek limestones by previous workers.