Catalog - Data.gov

Database for the geologic map of the Frederick 30 x 60 quadrangle, Maryland, Virginia, and West Virginia

Organization: Department of the Interior
Updated: 20250430 | Harvested: September 05, 2025 at 08:29 PM

The database for the geologic map of the Frederick 30 x 60 quadrangle covers the distinct geologic provinces and sections of the central Appalachian region that are defined by unique bedrock and...

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Database for the bedrock geologic map of the Bellows Falls 7.5- x 15-Minute Quadrangle, Windham and Windsor Counties, Vermont, and Sullivan and Cheshire Counties, New Hampshire

Organization: Department of the Interior
Updated: 20250521 | Harvested: September 04, 2025 at 07:54 PM

The bedrock geology of the Bellows Falls 7.5 x 15 minute quadrangle, Vermont and New Hampshire, consists of polydeformed Ordovician to Devonian metasedimentary, metavolcanic, and metaplutonic...

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Major and trace element geochemical data for the Petersburg Granite (sensu stricto), Pocoshock Creek Gneiss, and related Appalachian igneous rocks

Organization: Department of the Interior
Updated: 20250121 | Harvested: July 15, 2025 at 06:58 PM

The Dinwiddie terrane, formerly the Petersburg Granite (sensu lato), was originally interpreted as a Pennsylvanian - Permian igneous complex located in the eastern Piedmont of Virginia and...

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Database for the geologic map of the Buckner 7.5' quadrangle, Louisa County, Virginia

Organization: Department of the Interior
Updated: 20250214 | Harvested: August 06, 2025 at 06:48 PM

The database for the Buckner 7.5-minute quadrangle straddles three terrane boundaries in the Piedmont Physiographic Province in central Virginia: the Chopawamsic terrane, the Elk Hill Complex, and...

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Metamorphic map of Massachusetts - A digital representation of the metamorphic map from the State bedrock geologic map of Zen and others, 1983

Organization: Department of the Interior
Updated: 20250915 | Harvested: September 17, 2025 at 08:39 PM

This data release provides a vector digital dataset developed from the published metamorphic map of Massachusetts. This data release is a digital representation of the metamorphic map shown on...

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