Dan River Group

Dan River Group
Stratigraphic range: Late Triassic
TypeHalf graben rift basin; principle normal fault zone on the northwest basin margin.
Unit ofNewark Supergroup
Sub-unitsStoneville Formation, Cow Branch Formation, Leaksville Formation, Dry Fork Formation, Walnut Cove Formation, Pine Hall Formation
Area126,300 acres
Thickness5,000-8,000 ft
Location
RegionVirginia, North Carolina
CountryUnited States
Type section
Named forDan River
Named byThayer (1970)

The Dan River Group is a geologic group in Virginia and North Carolina associated with the initial rifting of the supercontinent Pangea. It is located on the southern end of a much larger rift valley sequence (the Newark Supergroup) which together formed the Central Atlantic Magmatic Province (CAMP); an extremely large flood basalt eruption that occurred around 201 Ma. It preserves fossils dating back to the Triassic period.

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