| Java Formation | |
|---|---|
| Stratigraphic range: Late Devonian | |
| Type | Formation |
| Sub-units |
|
| Underlies | Ohio Shale |
| Overlies | West Falls Formation |
| Location | |
| Region | |
| Country | United States |
The Java Formation is a geologic formation in Kentucky, New York, Ohio, Pennsylvania, Tennessee, Virginia, West Virginia. It preserves fossils dating back to the Devonian period. [1] The formation comprises the Pipe Creek Shale, Wiscoy Sandstone Member in New York, and Hanover Shale Member except in Tennessee. [2]
The Hamilton Group is a Devonian-age geological group which is located in the Appalachian region of the United States. It is present in New York, Pennsylvania, Maryland, Ohio, West Virginia, northwestern Virginia and Ontario, Canada, and is mainly composed of marine shale with some sandstone.
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 outcrop near the village of Marcellus, New York, in the United States, it extends throughout much of the Appalachian Basin.
The Devonian Old Port Formation is a mapped bedrock unit in Pennsylvania, USA. Details of the type section and of stratigraphic nomenclature for this unit as used by the U.S. Geological Survey are available on-line at the National Geologic Map Database. Current nomenclature usage by U.S. Geological Survey restricts the name Old Port Formation to Pennsylvania, but correlative units are present in adjacent states.
The Olentangy Shale is a geologic formation in Ohio. It preserves fossils dating back to the Devonian period.
The Ohio Shale is a geologic formation in Ohio. It preserves fossils dating back to the Devonian period.
The Holland Quarry Shale is a geologic formation in Ohio. It preserves fossils dating back to the Devonian period.
The Cleveland Shale, also referred to as the Cleveland Member, is a shale geologic formation in the eastern United States.
The Birdsong Shale is a geologic formation in Tennessee. It preserves fossils dating back to the Devonian period.
The Whitesburg Formation is a dark limestone with interbedded shales geologic formation in Tennessee and Virginia. It preserves fossils dating back to the Ordovician period.
The Sonyea Group is a geologic group in the northern part of the Appalachian Basin. It preserves fossils dating back to the Devonian period.
The Delaware River Formation is a geologic formation in Pennsylvania and New York (state). It preserves fossils dating back to the Devonian period.
The Cherry Ridge Shale is a geologic formation in Pennsylvania. It preserves fossils dating back to the Devonian period.
The Tomstown Dolomite or Tomstown Formation is a geologic formation in Maryland, Pennsylvania, Virginia and West Virginia. It preserves fossils dating to the Cambrian Period.
The Alfred Shale is a geologic formation at Alfred Station, New York. It preserves fossils dating back to the Devonian period.
The Gowanda Shale is a geologic formation in New York. It preserves fossils dating back to the Devonian period.
The Oneonta Formation is a geologic formation in New York. It preserves fossils dating back to the Devonian period.
The Pulteney Shale is a geologic formation in New York. It preserves fossils dating back to the Devonian period.
The Bell Shale is a geologic formation in Michigan. It preserves fossils dating back to the Devonian period.
The Ellsworth Shale is a geologic formation in Michigan. It preserves fossils dating back to the Devonian period.
The West Falls Group is a geologic group in the Appalachian Basin. It dates back to the Devonian period. Also stratigraphically equivalent to the Portage Group.
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