Scientific data near [65.51000,-148.53000]

Search area extends approximately 2.2 km east-west and 5.4 km north-south.

Geographic context

Counties, states, countries, continents, or oceans
Yukon-Koyukuk	Census area
Alaska	state
United States	country
North America	continent
Land	continent
Map quadrangles, from USGS or Canadian NTS
Livengood C-4	1:63,360 Alaska quadrangle
Livengood	1:250,000 Alaska quadrangle
Watershed boundaries (USGS hydrologic units)
Tolovana River	hydrologic unit
190405	hydrologic accounting unit
Southwest Alaska	hydrologic subregion
Alaska	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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Map symbol	Lithology	Unit name
Dcr	Sedimentary	Cascaden Ridge and Beaver Bend combined correlative units
DZkb	Sedimentary	Older carbonate strata of the Porcupine River sequence of Brosgé and Reiser (1969) and equivalent units
PzPxmi	Igneous - Plutonic	Mafic igneous rocks, central and northeast Alaska
TKg	Igneous - Plutonic	Felsic granitic rocks

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
Northeast Alaska '73	M-D	Northeast Alaska '73 25044 line km with spacing 1.60 km over parts of AK
Livengood	M/EM-D	Livengood 1687 line km with spacing 0.40 km over parts of AK
Alaska Regional	M-Dz	Alaska Regional 14484 line km with spacing 16.10 km over parts of AK
Northeast Alaska '72	M-D	Northeast Alaska '72 27841 line km with spacing 1.90 km over parts of AK

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
AK-EC07	Low-sulfide Au-quartz veins
AK-EC13	Porphyry Cu, BC-Ak type
AK-EC14	Plutonic porphyry Au
AK-EC16	Polymetallic replacement
AK-EC19	Cu (Au) skarn
AK-EC18	Polymetallic vein
AK-EC20	Zn-Pb skarn
AK-EC09	Kipushi Cu-Pb-Zn
AK-EC11	Mississippi Valley Type
AK-EC15	Placer Au
AK-EC21	Sedex Zn-Pb

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
Wickersham	Passive margin	Alaska

Alaska Geochemical Database, Version 2.0 (AGDB2)--including "best value" data compilations for rock, sediment, soil, mineral, and concentrate sample media

Geochemical analyses of rocks, mineral separates, bulk samples from lake and stream sediments, heavy mineral concentrates, and soils collected by USGS from 1962 to 2009.

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Lab ID	Sample medium	Description
CHW936	rock	igneous monzonite
CHW937	rock	sedimentary claystone
CHW938	rock	igneous unspecified
F000563	rock	igneous monzonite

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
CHW936	igneous	felsic
F000563	igneous	monzonite

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
Ruth Creek	Prospect	AU AG CR
Old Smoky	Prospect	AU SB
Ruth Creek	Past Producer	AU SB CR HG AG
Satellite	Past Producer	AU SB CR CO HG NI AG U
Griffin	Prospect	AU CR NI
Lillian Creek	Occurrence	W SB CR AU HG

Alaska Resource Data File

A comprehensive database of Alaskan mineral deposits compiled from the published literature and from unpublished reports and data from industry, the US Bureau of Land Management, and USGS.

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Site	Status	Commodities
Ruth Creek	Inactive	Au
Griffin	Inactive	Au
Old Smoky	Inactive	Au
Livengood; Old Smoky; Ruth Creek...	Active	As;Au;Fe;Sb

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
Ruth Creek Placer	Producer	Alaska, United States
Livengood Creek Placer	Producer	Alaska, United States
Satellite	Past Producer	Alaska, United States
Ruth Creek	Past Producer	Alaska, United States
Ruth Creek	Occurrence	Alaska, United States
Lillian Creek	Occurrence	Alaska, United States

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.

Database Home

Tract name	Deposit type	Geology
Yukon-Tanana Upland	porphyry copper	Kluane Arc and Tertiary Kuskokwim Mountains volcanic-plutonic belt (continuation of Canadian Cordilleran continental arc); north of the Denali Fault
Chukotka	porphyry copper	Early to Late Cretaceous volcanic and intrusive rocks composing island-arc, continental-arc, and collisional magmatic belts associated with the Chukotka microcontinent.
Pacific Margin	porphyry copper	Cretaceous through middle Tertiary volcanic and intrusive rocks representing a series of continental- and island-arc systems accreted and superimposed onto the paleomargin of northeast Asia.