Rhinestreet Formation

The Rhinestreet Shale is a geologic formation in the Appalachian Basin. It dates back to the Devonian period. The Rhinestreet is an organic or Black Shale found on from the approximately the middle of the Appalachian Basin.^[1] Near the Middle of Ohio and Kentucky it reaches the surface on the flank of Cincinnati and Findlay Arches.^[2]

Rhinestreet Formation
Stratigraphic range: Late Devonian Frasnian ~380–381 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Type	Formation
Unit of	West Falls Group
Sub-units	Belpre Ash Bed
Underlies	Angola Formation
Overlies	Cashaqua Shale
Lithology
Primary	Black Shale
Other	Shale, Oil Shale
Location
Region	New York, Ohio, Pennsylvania
Country	United States, Canada
Type section
Named for	Exposures along Rhinestreet north from Naples, Ontario Co., NY.
Named by	Clarke (1903)

Description

The Rhinestreet is composed primarily of black shale because of its organic content. Upwards of 85% of the total formation is made up of black shale. There are thin beds of non-organic gray shale as well as limestone concretions interbedded throughout the formation. Duning the Alleghanian orogeny regional uplifting caused the first set of fracturing. Later during rapid burial from sedimentation the next set of fractures were caused by natural hydraulic-fracturing.^[1]