Johns Valley Formation

Johns Valley Formation
Stratigraphic range: Carboniferous: Pennsylvanian
TypeFormation
UnderliesAtoka Formation
OverliesJackfork Sandstone
Lithology
PrimaryShale
OtherSandstone
Location
RegionArkansas and Oklahoma
CountryUnited States
Type section
Named forJohns Valley, Pushmataha County, Oklahoma
Named byEdward Oscar Ulrich, 1927

The Johns Valley Formation is a geologic formation in Arkansas and Oklahoma. It preserves fossils dating back to the Carboniferous period.

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.