Nassawadox Formation: Occohannock Member (VAQno;0)

State	Virginia
Name	Nassawadox Formation: Occohannock Member
Geologic age	Quaternary
Original map label	Qno
Comments	Occohannock Member; Coastal Plain, East of Chesapeake Bay From expanded explanation (ref. VA002): Occohannock Member (Mixon, 1985). Light-yellowish-gray, fine to medium sand underlying southwest-sloping terrace (altitude 30-18 feet) on west side of upland. Sand is dominantly massive to horizontally bedded, but shows some small-scale cross-bedding; locally contains clay and silt as matrix and thin beds. Unit was deposited in a low-energy, open-bay environment. Thickness ranges from a featheredge near bay-facing scarp along western margin of upland to 20 feet in downdip areas near present bay.
Primary rock type	sand
Secondary rock type
Other rock types
Lithologic constituents	Major Unconsolidated > Coarse-detrital > Sand
Map references	Digital Representation of the 1993 Geologic Map of Virginia", 2003, CD ROM (ISO-9660) contains image file, expanded explanation in pdf, and ESRI shapefiles, viewing software not included. This is a digital version of "Geologic Map of Virginia" published in 1993. Available from: https://www.dmme.virginia.gov/commerce/ [https://www.dmme.virginia.gov/commerce/]
Unit references	Virginia Division of Mineral Resources, 1993, Geologic Map of Virginia: Virginia Division of Mineral Resources, scale 1:500,000 Digital Representation of the 1993 Geologic Map of Virginia - expanded explanation: 2003, Commonwealth of Virginia, Department of Mines, Minerals, and Energy, Divsion of Mineral Resources, Publication 147, 85 pp Digital Representation of the 1993 Geologic Map of Virginia", 2003, CD ROM (ISO-9660) contains image file, expanded explanation in pdf, and ESRI shapefiles, viewing software not included. This is a digital version of "Geologic Map of Virginia" published in 1993. Available from: https://www.dmme.virginia.gov/commerce/ [https://www.dmme.virginia.gov/commerce/]
Geographic coverage	Accomack - Northampton