Scientific data near [40.73963,-115.70545]

Search area extends approximately 2.2 km east-west and 2.9 km north-south.

Geographic context

Counties, states, countries, continents, or oceans
Elko	county
Nevada	state
United States	country
North America	continent
Land	continent
Map quadrangles, from USGS or Canadian NTS
Te-moak Well	quadrangle 1:24,000 scale
Elko	quadrangle 1:100,000 scale
Elko	quadrangle 1:250,000 scale
Watershed boundaries (USGS hydrologic units)
South Fork Humboldt	hydrologic unit
Humboldt	hydrologic accounting unit
Black Rock Desert-Humboldt	hydrologic subregion
Great Basin	hydrologic region

Geology of US states

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

Database Home

Unit	State	Lithology
Alluvium, undifferentiated	NV	Holocene and Pleistocene
Younger tuffaceous sedimentary rocks	NV	Pliocene and Miocene

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.

Database Home

ID	Data type	Description
Elko	M/R-D	Elko 5294 line km with spacing 4.80 km over parts of NV-UT

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).

Database Home

Tract	Deposit Type	Mineralization age
GB23	Epithermal vein, Comstock	Tertiary
GB26	Epithermal vein, quartz-alunite	Tertiary
GB28	Hot-spring Au-Ag	Tertiary
GB30	Sediment-hosted Au	Phanerozoic

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.

Database Home

Domain	Crust type	Region
Mojave	Lateral-extensional orogen	Central and Southwest

National geochemical survey database

National-scale geochemical analysis of stream sediments and soils in the US, from existing data, reanalysis of existing samples, and new sampling. Goal for sample density is one per 289 square km.

Database Home

Sample ID	Material	Source
98-EK2-222	Sediment	Soil

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.

Database Home

Sample ID	Date collected	Sample type
5137783	1979-08-03	Soil sample sieved to less than 149 microns (-100 mesh).

Global assessment of undiscovered copper resources

Deposits, prospects, and permissive tracts for porphyry and sediment-hosted copper resources worldwide, with estimates of undiscovered copper resources.

Database Home

Tract name	Deposit type	Geology
Great Basin Tertiary	porphyry copper	Mid-Tertiary volcanic fields associated with postsubduction extension in the Great Basin
Sierran Arc	porphyry copper	A composite island-continental margin arc that formed during subduction of the Farallon Plate beneath western North America
Western U.S. and Sonoran Desert Jurassic Arc	porphyry copper	U.S. and Mexican parts of a composite island-continental margin arc that formed during subduction of the Farallon Plate beneath western North America

Prospect- and mine-related features on USGS topographic maps

Symbols indicating mining-related features digitized from historical USGS topographic maps in the western part of the conterminous US. Includes prospect pits, mine shafts and adits, quarries, open-pit mines, tailings piles and ponds, gravel and borrow pit

Database Home

Feature ID	Feature type	Feature name
Borrow Pit	point
Gravel Pit	point
Gravel Pit	polygon