Scientific data near [32.89169,-114.54952]

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

Geographic context

Counties, states, countries, continents, or oceans
Imperial	county
California	state
United States	country
North America	continent
Land	continent
Map quadrangles, from USGS or Canadian NTS
Little Picacho Peak	quadrangle 1:24,000 scale
Yuma	quadrangle 1:100,000 scale
El Centro	quadrangle 1:250,000 scale
Watershed boundaries (USGS hydrologic units)
Imperial Reservoir	hydrologic unit
Lower Colorado	hydrologic accounting unit
Lower Colorado	hydrologic subregion
Lower Colorado	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
Precambrian igneous and metamorphic rock complex	CA	Early Proterozoic to Miocene
Tertiary nonmarine rocks, undivided	CA	Paleocene to Pliocene
Tertiary volcanic flow rocks, unit 15 (Southern Mojave Desert)	CA	Tertiary (8-28 Ma)

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
Salton Sea South '81	M-D	Salton Sea South '81 16109 line km with spacing 0.80 km over parts of CA
El Centro	M/R-D	El Centro 1256 line km with spacing 9.60 km over parts of CA-AZ

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
SB37	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

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
Western Sierra Madre Occidental and Laramide Central	porphyry copper	Belt of Late Cretaceous to middle Eocene (Laramide) magmatic arc rocks in the Sierra Madre Occidental, eastern Mexican Basin and Range, and the Mesa Central of north-central Mexico and extensions north in to the U.S
Southern California Batholith	porphyry copper	Jurassic-Early Cretaceous island arc(s) of western Baja California, including the western part of the Cretaceous Peninsular Ranges batholith and associated volcanic rocks
Sierran Arc	porphyry copper	A composite island-continental margin arc that formed during subduction of the Farallon Plate beneath western North America
Western Mexican Basin and Range and Laramide Southwest	porphyry copper	Late Cretaceous to middle Eocene island arc and continental arc rocks along the western margin of Mexico and extending north into the U.S.
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	Hess Mine
Prospect Pit	point
Prospect Pit	point
Prospect Pit	point
Prospect Pit	point
Prospect Pit	point
Prospect Pit	point
Prospect Pit	point
Prospect Pit	point
Prospect Pit	point
Adit	point
Adit	point
Adit	point