Early Devonian KeyserFormation is a mapped limestone bedrock unit in Pennsylvania, Maryland, Virginia, and West Virginia. The Keyser is a nodular limestone...
may refer to: Keyser, Ontario, Canada Keyser, West Virginia, United States, a city named after William Keyser (see below) KeyserFormation, a limestone...
The Marcellus Formation or the Marcellus Shale is a Middle Devonian age unit of sedimentary rock found in eastern North America. Named for a distinctive...
The Keyser Limestone Formation is a geologic formation in West Virginia. It preserves fossils dating back to the Silurian period. Earth sciences portal...
The Tully Formation is a geologic unit in the Appalachian Basin. The Tully was deposited as a carbonate rich mud, in a shallow sea at the end of the Middle...
The Genesee Formation (Group) is a geologic formation in New York. It is equivalent the Harrell Shale in Pennsylvania. It date back to the Upper Devonian...
The Knox Supergroup, also known as the Knox Group and the Knox Formation, is a widespread geologic group in the Southeastern United States. The age is...
the Portage Group. The West Falls formation is bounded above by the Java Formation and below by the Sonyea Formation. It comprises the Angola Shale and...
The Monongahela Formation is a geologic formation in West Virginia, Pennsylvania, Ohio, and Maryland. It is dated to the Carboniferous period. The top...
as a massive limestone overlying the KeyserFormation. C. R. Wood first mapped it as part of the Old Port Formation in Pennsylvania. The Licking Creek Limestone...
The Salina Group or Salina Formation is a Late Silurian-age, Stratigraphic unit of sedimentary rock that is found in Northeastern and Midwestern North...
it outcrops; in others, especially its Southern Ontario portion, the formation can be less prominent as a local surface feature.[citation needed] In...
Boyd Thacher State Park Kaibab Limestone Kakanui Kennetcook River KeyserFormation Kotelny Island Latyan Dam Lincolnshire limestone Llandovery Group Madar...
shale with some sandstone. There are two main formations encompassed by the group: the Mahantango Formation and the Marcellus Shale. In southwestern Virginia...
areas where this Geologic Unit thins it is also called the Black River Formation (undifferentiated). One example of this is over the Cincinnati Arch &...
undulatory, occurring at the base of the "calico" limestone of the KeyserFormation. The depositional environment of the Tonoloway is interpreted as shallow...
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...
the Bass Islands Formation from Dunnville to Hagersville. In Pennsylvania, the Bertie Group is time-equivalent with the KeyserFormation. The Bertie Group...
above the Tully Limestone member of the Mahantango Formation. The geographical extent of the formation includes southern New York, Pennsylvania, eastern...
Dunkard contains three formation. Starting at the base (oldest) is the Waynesburg Formation, Washington Formation, and Greene Formation. The base is marked...
The Kanawha Formation is a geologic formation in West Virginia. It preserves fossils dating back to the Carboniferous period. Earth sciences portal Paleontology...
Pennsylvania. The rocks are listed in stratigraphic order. Note: Some of the Formations are laterally equivalent in age. They are listed in order from West to...
The Maccrady Formation is a geologic formation in West Virginia. It preserves fossils dating back to the Carboniferous period. Earth sciences portal Paleontology...
The Ordovician Martinsburg Formation (Om) is a mapped bedrock unit in Pennsylvania, New Jersey, Maryland, Virginia, and West Virginia. It is named for...
The Allegheny Group, often termed the Allegheny Formation, is a Pennsylvanian-age geological unit in the Appalachian Plateau. It is a major coal-bearing...
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