Newark Supergroup; Arkosic Sandstone

Light-gray to light-reddish-brown, medium- to coarse-grained, micaceous.
State Virginia
Name Newark Supergroup; Arkosic Sandstone
Geologic age Upper Triassic
Lithologic constituents
Major
Sedimentary > Clastic > Sandstone
Comments Mesozoic Basins; paper map and digital map have differernt labels: paper map does not have TR prefix, but the digital source has TR as part of the label.
References

Virginia Division of Mineral Resources, 1993, Geologic Map of Virginia: Virginia Division of Mineral Resources, scale 1:500,000.

Virginia Division of Mineral Resources, 2003, Digital Representation of the 1993 Geologic Map of Virginia, Publication 174, CD ROM (ISO-9660) contains image file, expanded explanation in pdf, and ESRI shapefiles, scale 1:500,000.

NGMDB product
Counties Chesterfield - Cumberland - Powhatan