Scientific data near [37.97090,-79.19410]

Search area extends approximately 4.5 km east-west and 5.6 km north-south.

Geographic context

Counties, states, countries, continents, or oceans
Augusta	county
Virginia	state
United States	country
North America	continent
Land	continent
Map quadrangles, from USGS or Canadian NTS
Vesuvius	quadrangle 1:24,000 scale
Buena Vista	quadrangle 1:100,000 scale
Roanoke	quadrangle 1:250,000 scale
Watershed boundaries (USGS hydrologic units)
South Fork Shenandoah	hydrologic unit
Potomac	hydrologic accounting unit
Potomac	hydrologic subregion
Mid Atlantic	hydrologic region

Geology of US states

Digital geologic maps of the US states with consistent lithology, age, GIS database structure, and format

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Unit	State	Lithology
Elbrook Formation	VA	Cambrian
Beekmantown Group	VA	Ordovician
Conococheague Formation	VA	Cambrian-Ordovician

Airborne geophysical surveys

Aerial surveys of magnetic anomaly and gamma ray emission; older surveys were analog record which have been digitized, newer surveys collected data in digital form.

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ID	Data type	Description
Western Virginia	M-Dz	Western Virginia 12231 line km with spacing 0.80 km over parts of VA
Roanoke Quad.	M-Dz	Roanoke Quad. 11265 line km with spacing 0.80 km over parts of VA
Roanoke	M/R-D	Roanoke 2784 line km with spacing 9.60 km over parts of VA

Estimates of undiscovered mineral resources

National Mineral Resource Assessment 1998: Estimates of the number of undiscovered mineral resources of gold, silver, copper, lead, and zinc within identified permissive tracts (geographic areas in which mineral deposits may form).

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Tract	Deposit Type	Mineralization age
EC05	Mississippi Valley, Appalachian Zn	Late Paleozoic

The continental crust

Seventy-seven major components of the North American continent were delineated at a general scale (1:5,000,000); including the general composition, geological environment, and types of primary metals endowments that can be expected in each domain.

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Domain	Crust type	Region
SCAB	Extensional accretionary orogen	Southeastern Laurentia and Appalachians

Geochemistry of stream sediments in the US from the NURE-HSSR database

National-scale geochemical analysis of stream sediments and soils in the US collected and analyzed under the National Uranium Resource Evaluation program.

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Sample ID	Date collected	Sample type
5304956	1978-04-22	Stream sediment sample from flowing stream, sieved to less than 149 microns (-100 mesh) and dried at less than or equal to 110øC.
5304957	1978-04-22	Stream sediment sample from flowing stream, sieved to less than 149 microns (-100 mesh) and dried at less than or equal to 110øC.

Geochemistry of water samples in the US from the NURE-HSSR database

National-scale geochemical analysis of water samples in the US collected and analyzed under the National Uranium Resource Evaluation program.

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Sample ID	Date collected	Sample type
1226385	1978-04-22	Stream water sample filtered through a 0.8 micron filter at the site.
1226386	1978-04-22	Stream water sample filtered through a 0.8 micron filter at the site.
1226406	1977-01-12	Spring water sample filtered through a 0.8 micron filter at the site.

Mineral Resource Data System

MRDS describes metallic and nonmetallic mineral resources throughout the world. Included are deposit name, location, commodity, deposit description, geologic characteristics, production, reserves, resources, and references.

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Site name	Development	Commodities
Earhart Prospect	Past Producer	BA
Earhart Prospect	Occurrence	BA