Scientific data near [38.38532,-115.55052]

Search area extends approximately 2.2 km east-west and 2.8 km north-south.

Geographic context

Counties, states, countries, continents, or oceans
Nye	county
Nevada	state
United States	country
North America	continent
Land	continent
Map quadrangles, from USGS or Canadian NTS
Bullwhacker Springs	quadrangle 1:24,000 scale
Quinn Canyon Range	quadrangle 1:100,000 scale
Lund	quadrangle 1:250,000 scale
Watershed boundaries (USGS hydrologic units)
Hot Creek-Railroad Valleys	hydrologic unit
Central Nevada Desert Basins	hydrologic accounting unit
Central Nevada Desert Basins	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
Carbonate Shelf Sequence - Dolomite, limestone, and shale	NV	Cambrian
Crossbedded quartzite, siltstone, and phyllite	NV	Lower Cambrian and latest Proterozoic
Carbonate Shelf Sequence - Limestone, dolomite, and quartzite	NV	Middle Ordovician to Upper Cambrian
Andesite and basalt flows	NV	Miocene and Oligocene
Felsic phaneritic intrusive rocks	NV	Miocene to Eocene

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
Quinn Canyon Range	M-D	Quinn Canyon Range 4731 line km with spacing 0.80 km over parts of NV
Blue Eagle	M-D	Blue Eagle 981 line km with spacing 0.80 km over parts of NV
Nevada Coop Area 1	M-Dz	Nevada Coop Area 1 4127 line km with spacing 1.60 km over parts of NV
Lund	M/R-D	Lund 5006 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).

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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
GB08	Porphyry Cu	Cretaceous
GB09	Porphyry Cu	Tertiary
GB10	Porphyry Cu	Jurassic
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

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
C-211229	Rock	Talus

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
5142138	1980-06-06	Talus sample.
5142139	1980-06-06	Stream sediment sample from dry stream, sieved to less than 149 microns (-100 mesh), and dried (if necessary) 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
1088634	1980-06-06	Spring water sample filtered through a 0.8 micron filter at the site.
1088635	1980-06-06	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
Irwin Mine	Occurrence	AU
Mayolli Claim	Occurrence	AU AG PB
Irwin Mill	Past Producer	PB AU AG
Unnamed Prospect	Prospect	AG
Unnamed Prospect	Prospect	PB AG ZN
Irwin Mine & Prospects	Prospect	AU AG ZN
Mayolli Claim	Past Producer	AU PB AG ZN

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
C211229	float/colluvium/talus	AEG314 1-31-322 ; NURE resubmittal

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
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
Mine Shaft	point
Mine Shaft	point	Irwin Mine
Prospect Pit	point
Prospect Pit	point
Prospect Pit	point
Mine Shaft	point	Irwin Mine
Mine Shaft	point
Prospect Pit	point
Prospect Pit	point
Prospect Pit	point
Prospect Pit	point
Prospect Pit	point
Adit	point
Adit	point
Adit	point
Adit	point
Adit	point
Adit	point
Adit	point
Adit	point