Scientific data near [42.01000,-123.60000]

Search area extends approximately 4.5 km east-west and 6.0 km north-south.

Geographic context

Counties, states, countries, continents, or oceans
Josephine	county
Oregon	state
United States	country
North America	continent
Land	continent
Map quadrangles, from USGS or Canadian NTS
Takilma	quadrangle 1:24,000 scale
Grants Pass	quadrangle 1:100,000 scale
Medford	quadrangle 1:250,000 scale
Watershed boundaries (USGS hydrologic units)
Illinois	hydrologic unit
Southern Oregon Coastal	hydrologic accounting unit
Oregon-Washington Coastal	hydrologic subregion
Pacific Northwest	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
Undivided pre-Cenozoic metavolcanic rocks, unit 2 (undivided)	CA	Paleozoic(?) to Mesozoic(?)
Paleozoic marine rocks, undivided, unit 9 (Western Klamath Mountains)	CA	Devonian to Jurassic
Ultramafic rocks, chiefly Mesozoic, unit 2 (Western Sierra Nevada and Klamath Mountains)	CA	Late Proterozoic(?) to Early Jurassic
Melange	OR	Jurassic
Alluvial deposits	OR	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
Medford '78	M-Dz	Medford '78 5978 line km with spacing 1.60 km over parts of OR
Josephine	M-Dz	Josephine 3218 line km with spacing 0.80 km over parts of OR
Medford	M/R-D	Medford 4707 line km with spacing 4.80 km over parts of CA-OR
Weed	M/R-D	Weed 2660 line km with spacing 9.60 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
PC03	Skarn Cu	Mesozoic
PC08	Porphyry Cu	Mesozoic
PC10	Massive sulfide, Cyprus	Jurassic
PC14	Massive sulfide, Sierran kuroko	Jurassic
PC40	Low-sulfide Au-quartz vein	Mesozoic

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
Foothills-Wallowa	Oceanic arc	Western Cordillera

Podiform chromite deposits

Location and characteristics of 1,124 individual mineral deposits of this type, with grade and tonnage models for chromium as well as several related elements.

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Record	Type	Comment
Black Nugget

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
EDW750	igneous	basalt

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
Cowboy Mine	Past Producer	CU AU AG ZN CO NI AS
Lyttle Mine	Past Producer	CU AG AU ZN
Cowboy Mine	Past Producer	CO CU NI
Owens	Past Producer	CR
Lyttle Mine	Past Producer	CU U ZN
Bee Quartz Prospect	Unknown	AU

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
Owens	Past Producer	Oregon, United States
Cowboy Mine	Past Producer	Oregon, United States
Cowboy Mine	Past Producer	Oregon, 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
EDS761

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
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
Open Pit Mine	point
Open Pit Mine	point
Prospect Pit	point
Prospect Pit	point
Adit	point
Prospect Pit	point
Adit	point
Adit	point
Tailings - Undifferentiated	polygon
Tailings - Undifferentiated	polygon
Tailings - Undifferentiated	polygon