USGS - science for a changing world

Mineral Resources On-Line Spatial Data

Marsh and Intertidal Mud Deposits

Marsh and Intertidal Mud Deposits - Organic-rich clay and silt
StateVirginia
NameMarsh and Intertidal Mud Deposits
Geologic ageQuaternary
Original map labelm
CommentsCoastal Plain Holocene (Karen Hostettler) From expanded explanation (ref. VA002): Marsh and intertidal mud deposits (Holocene). Medium to dark-gray soft mud, and grayish-brown peat, comprising sediment of marshes in coastal areas and Chesapeake Bay; thickness is 0 to 10 feet. Also, sandy mud and muddy fine sand, light- to dark-gray. Locally, contains abundant shell material characterized by Crassostrea virginica and Mercenaria mercenaria. Comprises sediments of shallow bays and flats in area of Atlantic coastal lagoons of the Eastern Shore.
Primary rock typeclay or mud
Secondary rock typesilt
Other rock types
Lithologic constituents
Major
Unconsolidated > Fine-detrital > Silt
Unconsolidated > Fine-detrital > Clay
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/
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/
Geographic coverageAccomack - Gloucester - Lancaster - Mathews - Northampton - Northumberland - York - Chesapeake - Hampton - Poquoson - Virginia Beach

Show this information as [XML] - [JSON]

AccessibilityFOIAPrivacyPolicies and Notices

Take Pride in America logoUSA.gov logoU.S. Department of the Interior | U.S. Geological Survey
URL: http://mrdata.usgs.gov/geology/state/sgmc-unit.php?unit=VAm;0
Page Contact Information: Peter Schweitzer