Scientific data near [64.78259,-165.18660]

Search area extends approximately 2.2 km east-west and 5.2 km north-south.

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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
DOnx	Metamorphic	Marble, graphitic rocks, and schist
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
Cady	M-Dg	Cady -9999 line km with spacing 0.40 km over parts of AK
Nome 1993	M/EM-D	Nome 1993 3856 line km with spacing 0.40 km over parts of AK
Nome	M/R-D	Nome 346 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-WC09	Low-sulfide Au-quartz veins
AK-WC27	Sedex Zn-Pb
AK-WC17	Placer Au
AK-WC01	Besshi massive sulfide

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
Brooks-Seward	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
BDB450	concentrate	panned only concentrate
BDB498	concentrate	panned only concentrate
BDB513	concentrate	panned only concentrate
BDB523	concentrate	panned only concentrate
BDB558	concentrate	panned only concentrate
BDB660	concentrate	panned only concentrate
BDN047	rock	metamorphic marble
CBK030	rock
CEW558	rock	metamorphic unspecified
CEW564	rock	metamorphic unspecified
M114204	rock	metamorphic metatactite
M127538	sediment
M127539	sediment

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
BDN047	metamorphic	marble
CBK030	unspecified
CEW558	metamorphic	unspecified
CEW564	metamorphic	unspecified
M114204	metamorphic	metatactite
M128334	igneous	unspecified

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
Rocky Mountain Creek Prospect	Occurrence	W
Spring	Occurrence	SB AU
Lindfors	Prospect	SB AU
Unnamed Occurrence	Occurrence	W
Spring	Occurrence	SB
Rocky Mountain	Prospect	AU W
Unnamed (near Christian Creek)	Prospect	W
Unnamed (lode in Rocky Mountain Creek)	Occurrence	W AU
Spring Prospect	Occurrence	SB
Unnamed (on hill 1231)	Occurrence	W

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
Unnamed (near Christian Creek)	Probably inactive	W
Spring	Probably inactive	Sb
Unnamed (on hill 1231)	Probably inactive	W
Lindfors	Inactive	Sb
Unnamed (lode in Rocky Mountain ...	Probably inactive	W

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
M127528	stream/river	stream
M127538	stream/river	stream
M127539	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
BDB450	stream/river	stream
BDB498	stream/river	stream
BDB513	stream/river	stream
BDB523	stream/river	stream
BDB558	stream/river	stream
BDB598	stream/river	stream
BDB660	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.