Scientific data near [61.79694,-157.33583]

Search area extends approximately 4.5 km east-west and 9.4 km north-south.

Geographic context

Counties, states, countries, continents, or oceans
Bethel	Census area
Alaska	state
United States	country
North America	continent
Land	continent
Map quadrangles, from USGS or Canadian NTS
Sleetmute D-4	1:63,360 Alaska quadrangle
Sleetmute	1:250,000 Alaska quadrangle
Watershed boundaries (USGS hydrologic units)
Aniak	hydrologic unit
190305	hydrologic accounting unit
Yukon	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
Kk	Sedimentary	Kuskokwim Group, undivided
Qs	Unconsolidated	Unconsolidated surficial deposits, undivided
Qs	Unconsolidated	Unconsolidated surficial deposits, undivided
w		Water

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
West-Central Alaska	M-D	West-Central Alaska 21360 line km with spacing 9.60 km over parts of AK
Sleetmute	M/R-D	Sleetmute 2365 line km with spacing 9.60 km over parts of AK
Sleetmute 2002	M/EM-D	Sleetmute 2002 5014 line km with spacing 0.40 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-SW05	Peraluminous granite porphyry gold
AK-SW14	Placer Au
AK-SW13	Plutonic porphyry Au
AK-SW16	Polymetallic vein

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
Farewell buried	Back-arc basin	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.

Database Home

Lab ID	Sample medium	Description
D331345	sediment
D331346	sediment
D331375	sediment
D331376	sediment
D331405	sediment
D331406	sediment
D331435	concentrate	panned C1 fraction
D331436	concentrate	panned C1 fraction
D331465	concentrate	panned C2 fraction
D331466	concentrate	panned C2 fraction
D331495	concentrate	panned C3 fraction
D331496	concentrate	panned C3 fraction
D387935	rock	sedimentary siltstone
D387938	rock	sedimentary graywacke
D387939	rock	sedimentary graywacke
D387945	rock	sedimentary siltstone
D387952	rock	sedimentary graywacke
D570021	rock	igneous intermediate porphyry

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
D387935	sedimentary	siltstone
D387938	sedimentary	graywacke
D387939	sedimentary	graywacke
D387945	sedimentary	siltstone
D387947	sedimentary	graywacke
D387952	sedimentary	graywacke
D570021	igneous	intermediate porphyry

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
Ammiline	Prospect	HG SB
Alice & Bessie	Past Producer	HG SB
Alice and Bessie	Past Producer	HG
Two Genevieves	Prospect	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
Two Genevieves	Inactive	Hg
Ammiline	Inactive	Hg
Alice and Bessie; Parks	Inactive	Hg

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
D331345	stream/river	stream
D331346	stream/river	stream
D331375	stream/river	stream
D331376	stream/river	stream
D331405	stream/river	stream
D331406	stream/river	stream

National Geochemical Database: Concentrate

Geochemistry of concentrates from the National Geochemical Database. Primarily inorganic elemental concentrations, most samples are from the continental US and Alaska.

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Sample ID	Sample source	Sample notes
D331435	stream/river	heavy-mineral-concentrate sample -- C1 fraction;; stream
D331436	stream/river	heavy-mineral-concentrate sample -- C1 fraction;; stream
D331465	stream/river	heavy-mineral-concentrate sample -- C2 fraction;; stream
D331466	stream/river	heavy-mineral-concentrate sample -- C2 fraction;; stream
D331495	stream/river	heavy-mineral-concentrate sample -- C3 fraction;; stream
D331496	stream/river	heavy-mineral-concentrate sample -- C3 fraction;; 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.

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
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.