Massanutten Sandstone (VASm;0)

State	Virginia
Name	Massanutten Sandstone
Geologic age	Silurian
Original map label	Sm
Comments	Appalachian Plateaus and Valley and Ridge. From expanded explanation (ref. VA002): Massanutten Sandstone (Geiger and Keith, 1891).Quartzite and sandstone, very-light-gray, fine-grained, well-sorted, locally conglomeratic, thick-bedded and crossbedded, very resistant with minor shale partings in upper part. Thickness ranges from 600 to nearly 1200 feet. Present only in the Massanutten Mountains, the sandstone unconformably overlies the Martinsburg Formation and is a lateral equivalent to the Tuscarora, and Rose Hill Formations, and Keefer Sandstone (Perry, 1977).
Primary rock type	arenite
Secondary rock type	quartzite
Other rock types	conglomerate
Lithologic constituents	Major Sedimentary > Clastic > Sandstone > Arenite Metamorphic > Metasedimentary > Metaclastic > Quartzite Minor Sedimentary > Clastic > Conglomerate
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	Page - Rockingham - Shenandoah - Warren