Scientific data near [34.87776,-117.44589]

Search area extends approximately 2.2 km east-west and 2.7 km north-south.

Geographic context

Counties, states, countries, continents, or oceans
San Bernardino	county
California	state
United States	country
North America	continent
Land	continent
Map quadrangles, from USGS or Canadian NTS
Kramer Hills	quadrangle 1:24,000 scale
Victorville	quadrangle 1:100,000 scale
San Bernardino	quadrangle 1:250,000 scale
Watershed boundaries (USGS hydrologic units)
Coyote-Cuddeback Lakes	hydrologic unit
Northern Mojave	hydrologic accounting unit
Northern Mojave-Mono Lake	hydrologic subregion
California	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
Mesozoic granitic rocks, unit 3 (Sierra Nevada, Death Valley area, Northern Mojave Desert and Transverse Ranges)	CA	Permian to Tertiary; most Mesozoic
Miocene nonmarine rocks	CA	Oligocene to Pleistocene
Quaternary alluvium and marine deposits	CA	Pleistocene to Holocene

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
Ord Mountains	M-Dz	Ord Mountains 7356 line km with spacing 0.80 km over parts of CA
San Bernardino	M/R-D	San Bernardino 5203 line km with spacing 4.80 km over parts of CA

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
SB06	Porphyry Cu	Mesozoic - Tertiary
SB27	Epithermal vein, Comstock	Tertiary
SB32	Epithermal vein, quartz-alunite	Tertiary
SB31	Epithermal vein, Sado	Tertiary
SB36	Hot-spring Au-Ag	Tertiary

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
D-511249	Sediment	Stream, Dry

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
5195748	1980-01-29	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.

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
Unnamed Shaft and Prospect	Prospect	AU
Unnamed Prospect	Prospect	AU
Unnamed Prospect	Prospect	CR CO AU NI ZN

An index to PGE-Ni-Cr deposits and occurrences in selected mineral-occurrence databases (web-accessible database)

A compendium of references to previously published databases and database records that describe PGE, nickel, and chromium deposits and occurrences. These data show where to obtain more detailed information about each deposit or occurrence.

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Deposit name	Deposit type	Location
Unnamed Prospect	Occurrence	California, United States

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
D511249	stream/river	NURE sample, < 100 mesh.; stream

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
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
Prospect Pit	point
Prospect Pit	point
Prospect Pit	point
Mine Shaft	point
Prospect Pit	point
Mine Shaft	point