| Nolichucky Formation | |
|---|---|
| Stratigraphic range: Cambrian | |
| Type | Formation |
| Lithology | |
| Primary | Shale |
| Location | |
| Region |  Virginia  Tennessee |
| Country |  United States |
The Nolichucky Formation is a geologic formation in Virginia and Tennessee. It preserves fossils dating back to the Cambrian period.
The Little Valley Formation is a geologic formation in Virginia, United States. It preserves fossils dating back to the Carboniferous period.
The Eggleston Formation is a geologic formation in Virginia. It preserves fossils dating back to the Ordovician period.
The Mosheim Limestone is a geological formation in Virginia. It preserves fossils dating back to the Ordovician period.
The Moccasin Formation is a geologic formation in Virginia and Tennessee. It preserves fossils dating back to the Ordovician period.
The Rockdale Run Formation is a geologic formation in Maryland, Pennsylvania, Virginia and West Virginia. It preserves fossils dating back to the Ordovician period.
The Bowen Formation is an Ordovician-age geological formation in the Appalachian region of the eastern United States. It occupies a thin stratigraphic range between the Wardell and Witten formations in some areas of southwest Virginia and northeast Tennessee. It is particularly well-exposed in Tazewell County, Virginia. Unlike its encompassing strata, the Bowen Formation is mostly calcareous sandstone and mudrock rather than limestone. The thicker upper part of the formation is composed of layered red mudrock which is replete with mudcracks. The thinner lower part, which is not always preserved, is a coarser unit of dark grey stratified sandstone which weathers to a rusty-brown color. Fossils are rare, restricted to stromatolites and Tetradium fibratum.
The Bays Formation is a geologic formation in Virginia. It preserves fossils dating back to the Ordovician period.
The Wardell Formation is a geologic formation in Virginia. It preserves fossils dating back to the Ordovician period.
The Patapsco Formation is a geologic formation of varigated clays, sandy clays, and sand in Virginia, the District of Columbia, Maryland, Delaware, Pennsylvania, and in the subsurface of New Jersey. It preserves fossils such as plants and molluscs dating back to the Cretaceous period.
The Rome Formation is a geologic formation in Alabama, Georgia, and Tennessee. It preserves fossils dating back to the Cambrian period.
The Grainger Formation is a geologic formation in Tennessee, Kentucky, and Virginia. It preserves fossils dating back to the early Mississippian subperiod of the Carboniferous period.
The Blackford Formation is a geologic formation in Tennessee. It preserves fossils dating back to the Ordovician period.
The Lenoir Formation is a geologic formation in Tennessee. It preserves fossils dating back to the Ordovician period.
The Rockdell Formation is a geologic formation in Tennessee. It preserves fossils dating back to the Ordovician period.
The Sequatchie Formation is a geologic formation in Alabama, Georgia, and Tennessee. It preserves fossils dating back to the Ordovician 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 Midway Group is a geologic group in the Mississippi Embayment of Tennessee, Arkansas, Mississippi, Louisiana, Texas and Alabama. It preserves fossils dated to the Paleogene period.
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. The formation comprises the Pipe Creek Shale, Wiscoy Sandstone Member in New York, and Hanover Shale Member except in Tennessee.
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 Maccrady Formation is a geologic formation in West Virginia. It preserves fossils dating back to the Carboniferous period.
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