Scientific data near [64.22620,-143.89160]

Search area extends approximately 4.5 km east-west and 10.2 km north-south.

Geographic context

Counties, states, countries, continents, or oceans
Southeast Fairbanks	Census area
Alaska	state
United States	country
North America	continent
Land	continent
Map quadrangles, from USGS or Canadian NTS
Eagle A-6	1:63,360 Alaska quadrangle
Eagle	1:250,000 Alaska quadrangle
Watershed boundaries (USGS hydrologic units)
Healy Lake	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
Kmgr	Igneous - Plutonic	Granitic rocks of central and southeast Alaska
PzPxybg	Metamorphic	Biotite gneiss, marble, schist, quartzite, and amphibolite
PzPxygs	Metamorphic	Gneiss, schist, and quartzite
Qs	Unconsolidated	Unconsolidated surficial deposits, undivided
Qs	Unconsolidated	Unconsolidated surficial deposits, undivided

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
Tanacross 2015	M-D	Tanacross 2015 26533 line km with spacing 0.50 km over parts of AK
Alaska Regional	M-Dz	Alaska Regional 14484 line km with spacing 16.10 km over parts of AK
Eagle	M-Dz	Eagle 12713 line km with spacing 1.20 km over parts of AK
Eagle	M/R-D	Eagle 2035 line km with spacing 9.60 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-EC18	Polymetallic vein
AK-EC15	Placer Au

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
Yukon-Tanana lower	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
AKB046	sediment
AKB762	rock	igneous granodiorite
AKB763	rock	igneous felsic
AKB764	rock
AKB765	rock	igneous granodiorite
AKB766	rock	igneous felsic
AKB767	rock	metamorphic gneiss
AKB768	rock	igneous felsic
AKB783	rock	igneous granodiorite
AKB784	rock	metamorphic gneiss
AKB785	rock	igneous granodiorite
AKB786	rock	igneous granite
AKB822	rock	metamorphic unspecified

Geochemistry of stream sediments in the US from the NURE-HSSR database

National-scale geochemical analysis of stream sediments and soils in the US collected and analyzed under the National Uranium Resource Evaluation program.

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Sample ID	Date collected	Sample type
7029151	1978-06-30	Wet stream sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves.
7029152	1978-06-30	Wet stream sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves.

Geochemistry of water samples in the US from the NURE-HSSR database

National-scale geochemical analysis of water samples in the US collected and analyzed under the National Uranium Resource Evaluation program.

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Sample ID	Date collected	Sample type
3031053	1978-06-30	Stream water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3031054	1978-06-30	Stream water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.

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
AKB762	igneous	granodiorite
AKB763	igneous	felsic
AKB764	unspecified
AKB765	igneous	granodiorite
AKB766	igneous	diorite
AKB767	metamorphic	gneiss
AKB768	igneous	felsic
AKB779	igneous	granodiorite
AKB783	igneous	granodiorite
AKB784	metamorphic	gneiss
AKB785	igneous	granodiorite
AKB786	igneous	granodiorite
AKB822	unspecified

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
Larsen Ridge; Lucky 13	Probably inactive	Cu;Mo;W
Unnamed (near VABM Good)	Inactive	Cu;Mo;W
Quartz-Porphyry	Inactive	Mo

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
AKB046	stream/river	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.

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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.

USMIN Mineral Deposit Database

A developing national-scale geospatial database that will be an authoritative source of information on the most important mines, mineral deposits, and mineral districts of the United States.

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Site name	Feature type	Commodities
Lucky 13, Lucky 13 deposit	Deposit	tungsten