Scientific data near [40.82500,-116.22500]

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

Geographic context

Counties, states, countries, continents, or oceans
Eureka	county
Nevada	state
United States	country
North America	continent
Land	continent
Map quadrangles, from USGS or Canadian NTS
Schroeder Mountain	quadrangle 1:24,000 scale
Battle Mountain	quadrangle 1:100,000 scale
Winnemucca	quadrangle 1:250,000 scale
Watershed boundaries (USGS hydrologic units)
Upper 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

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Unit	State	Lithology
Slope Assemblage - Calcareous shale, siltstone, chert, quartzite, and greenstone	NV	Devonian to Ordovician
Slope Assemblage - Platy limestone, dolomite, and chert	NV	Lower Devonian to Silurian
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.

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ID	Data type	Description
Winnemucca	M/R-D	Winnemucca 4747 line km with spacing 4.80 km over parts of NV
Central Nevada North '66	M-Dz	Central Nevada North '66 2655 line km with spacing 1.60 km over parts of NV
North-central Nevada I	M-Dz	North-central Nevada I 6091 line km with spacing 1.60 km over parts of NV

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
GB05	Skarn Au, truncated	Mesozoic - Tertiary
GB18	Distal disseminated Ag-Au	Mesozoic - Tertiary
GB02	Skarn Cu	Mesozoic - Tertiary
GB15	Polymetallic replacement + skarn Zn-Pb	Mesozoic - Tertiary
GB20	Massive sulfide, Besshi	Paleozoic
GB08	Porphyry Cu	Cretaceous
GB09	Porphyry Cu	Tertiary
GB10	Porphyry Cu	Jurassic
GB19	Massive sulfide, Cyprus	Paleozoic
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.

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

Major mineral deposits of the world

Regional locations and general geologic setting of known deposits of major nonfuel mineral commodities. Originally compiled in five parts by diverse authors, combined here for convenience despite likely inconsistencies among the regional reports.

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Deposit name	Deposit type	Commodity
Gold Quarry South Layback (Maggie Creek district)	Hydrothermal	gold, silver

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.

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Sample ID	Material	Source
98-WM-039	Sediment	Stream, Dry
98-WM-042	Sediment	Stream, Wet

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
5148437	1976-08-29	Dry stream sediment sample dried at 110øC and sieved to -18 and +35 mesh (less than 1000 and greater than 500 microns).
5148439	1976-08-30	Wet stream sediment sample dried at 110øC and sieved to -18 and +35 mesh (less than 1000 and greater than 500 microns).

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
1090234	1976-08-30	Stream water sample filtered through a 0.45 micron membrane filter.

National Geochemical Database: Rock

Geochemical analysis of rock samples collected and analyzed by the USGS. This dataset includes and supersedes rock data formerly released as "Geochemistry of igneous rocks in the US extracted from the PLUTO database"

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Sample ID	Rock type	Rock name
M106310	sedimentary	limestone
M106311	sedimentary	dolomite
M106312	sedimentary	limestone
M106313	sedimentary	limestone
M106314	sedimentary	limestone
M106315	sedimentary	limestone
M106316	sedimentary
M106317	sedimentary	siltstone
M106318	sedimentary	siltstone
M106319	sedimentary	limestone
M106320	sedimentary
M106321	sedimentary	limestone
M106322	sedimentary	limestone
M106323	sedimentary	limestone
M106324	sedimentary	limestone
M106325	sedimentary	limestone
M106326	sedimentary	limestone
M106327	sedimentary	limestone
M106328	sedimentary	limestone
M106331	sedimentary	limestone
M106332	sedimentary	limestone

National Geochemical Database: Sediment

Geochemical analysis of sediment samples from the National Geochemical Database. Primarily inorganic elemental concentrations, most samples are of stream sediment in the continental US and Alaska.

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Sample ID	Sample source	Sample notes
C111221	stream/river	silt; NURE 72
C111223	stream/river	silt; NURE 70

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.

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Tract name	Deposit type	Geology
Cascade Arc	porphyry copper	U.S. part of a continental margin arc that formed during subduction of the Pacific and Juan de Fuca plates beneath western North America
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

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Feature ID	Feature type	Feature name
Gravel Pit	point
Prospect Pit	point