Scientific data near [61.76528,-153.62556]

Search area extends approximately 8.9 km east-west and 18.8 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
Lime Hills D-2	1:63,360 Alaska quadrangle
Lime Hills	1:250,000 Alaska quadrangle
Watershed boundaries (USGS hydrologic units)
Farewell Lake	hydrologic unit
190304	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
g	Unconsolidated	Glaciers
Kfy	Sedimentary	Flysch
Qs	Unconsolidated	Unconsolidated surficial deposits, undivided
Qs	Unconsolidated	Unconsolidated surficial deposits, undivided
Qs	Unconsolidated	Unconsolidated surficial deposits, undivided
Qs	Unconsolidated	Unconsolidated surficial deposits, undivided
TKgd	Igneous - Plutonic	Granodiorite to quartz monzodiorite

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
Lime Hills-Lake Clark	M-D	Lime Hills-Lake Clark 4465 line km with spacing 9.60 km over parts of AK
Southern Alaska Range - N.	M-Dz	Southern Alaska Range - N. 514 line km with spacing 1.60 km over parts of AK
Lime Hills	M/R-D	Lime Hills 2220 line km with spacing 9.60 km over parts of AK
Styx	M/EM-D	Styx 5539 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-SW17	Cu (Au) skarn
AK-SW18	Zn-Pb skarn
AK-SW12	Porphyry Cu, BC-Ak type
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.

Database Home

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
AKA430	sediment
AKI238	sediment
AKI245	sediment
AKI248	sediment
AKI249	sediment
AKI254	sediment
AKI255	sediment
D284280	concentrate	panned C3 fraction
D284503	concentrate	panned C3 fraction
D285172	sediment
D285397	sediment
D286010	rock	sedimentary graywacke
D286107	rock	igneous granite
D286211	rock	sedimentary graywacke
D312044	concentrate	panned C3 fraction
D312045	concentrate	panned C3 fraction
D312046	concentrate	panned C3 fraction
D319708	rock	igneous monzonite
D387536	rock	sedimentary unspecified
D387537	rock	sedimentary unspecified
D387538	rock
D387539	rock
D387540	rock	sedimentary unspecified
D387541	rock	sedimentary unspecified
D387542	rock
D387543	rock
D387597	rock
D387598	rock
D387599	rock
D387600	rock
D387606	rock	sedimentary graywacke
D387607	rock
D387608	rock	igneous unspecified
D387609	rock
D390610	concentrate	panned only concentrate
F000986	rock	sedimentary graywacke
F000987	rock	sedimentary graywacke
F000988	rock	igneous quartz diorite
F000989	rock	sedimentary graywacke
F000990	rock	sedimentary graywacke
F000991	rock	sedimentary graywacke
F000992	rock
F000993	rock	sedimentary graywacke
F000994	rock	sedimentary shale
F000995	rock	metamorphic massive sulfide
F001063	rock	igneous granodiorite
F001064	rock	igneous granodiorite
F001074	rock
F001075	rock
M106770	rock	igneous granodiorite
M186261	rock	igneous granodiorite
M186262	rock	igneous granodiorite
M199193	rock	igneous tonalite

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"

Database Home

Sample ID	Rock type	Rock name
D286010	igneous	unspecified
D286107	igneous	unspecified
D319708	igneous	monzonite
F000986	unspecified
F000987	unspecified
F000988	unspecified
F000989	unspecified
F000990	unspecified
F000991	unspecified
F000992	unspecified
F000993	unspecified
F000994	unspecified
F000995	unspecified
F001063	igneous	granodiorite
F001064	igneous	granodiorite
F001074	unspecified
F001075	unspecified
M186261	igneous	granodiorite
M186262	igneous	granodiorite
M199193	igneous	tonalite

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.

Database Home

Site name	Development	Commodities
Three Cub	Occurrence	AG AU CU PB SB W ZN

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.

Database Home

Site	Status	Commodities
Three Cub	Inactive	Ag;Au;Cu;Pb;Sb;W;Zn

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.

Database Home

Sample ID	Sample source	Sample notes
AKA430	stream/river	stream
AKI238	stream/river	stream
AKI245	stream/river	stream
AKI248	stream/river	stream
AKI249	stream/river	stream
AKI254	stream/river	stream
AKI255	stream/river	stream
D285172	stream/river	stream
D285397	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.

Database Home

Sample ID	Sample source	Sample notes
D284280	stream/river	conc;; stream
D284503	stream/river	conc;; stream
D312044	stream/river	panned concentrate;; stream
D312045	stream/river	panned concentrate;; stream
D312046	stream/river	panned concentrate;; 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
Western Alaska Range	porphyry copper	Cretaceous porphyry prospects along the Kahiltna Basin-Peninsula terrane boundary
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.