Scientific data near [67.49127,-150.20141]

Search area extends approximately 2.2 km east-west and 5.8 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
Wiseman B-1	1:63,360 Alaska quadrangle
Wiseman	1:250,000 Alaska quadrangle
Watershed boundaries (USGS hydrologic units)
Upper Koyukuk River	hydrologic unit
190406	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
Khs	Metamorphic	Rocks of Hammond River shear zone of Till and others (2008a)
PzPxb	Metamorphic	Metasedimentary rocks of Bluecloud Mountain

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
Koyukuk (Wiseman)	M/EM-D	Koyukuk (Wiseman) 4223 line km with spacing 0.40 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-BR21	Sediment-hosted Cu
AK-BR04	Low-sulfide Au-quartz veins
AK-BR09	Mississippi Valley Type
AK-BR13	Placer Au
AK-BR06	Kipushi Cu-Pb-Zn

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 Range	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
ACC777	rock
ACC778	sediment
ACC779	rock
ACC780	soil
ACC781	rock
ACC782	rock
ACC801	rock
ACC803	sediment
ACC804	sediment
ACC805	sediment
ACC806	sediment
ACC808	sediment
CEV696	sediment
CEV697	sediment
CFW357	concentrate	panned C3 fraction
CFW358	concentrate	panned C3 fraction
CFW377	concentrate	panned C3 fraction
CFW378	concentrate	panned C3 fraction
CFW379	concentrate	panned C3 fraction
CJL655	concentrate	panned C3 fraction
CJL656	concentrate	panned C3 fraction
CJL657	concentrate	panned C3 fraction
ELY032	mineral

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
ACC777	unspecified
ACC779	unspecified
ACC781	unspecified
ACC782	unspecified
ACC801	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
Fay Gulch Placer	Occurrence	AU

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
Webster Gulch	Undetermined	Au
Fay Creek; Fay Gulch; Faye Creek	Active	Au

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
ACC778	stream/river	stream
ACC804	stream/river	stream
ACC805	stream/river	stream
ACC806	stream/river	stream
ACC808	stream/river	stream
CEV696	stream/river	stream
CEV697	stream/river	stream

National Geochemical Database: Soil

Geochemical analysis of soil samples 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
ACC780

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
CFW351A	stream/river	Arch HL;; stream
CFW352A	stream/river	Arch HL;; stream
CFW353A	stream/river	Arch HL;; stream
CFW354A	stream/river	Arch Tri;; stream
CFW355A	stream/river	Arch Tri;; stream
CFW356A	stream/river	Arch Tri;; stream
CFW357	stream/river	Faye;; stream
CFW357A	stream/river	Faye;; stream
CFW358	stream/river	Faye;; stream
CFW358A	stream/river	Faye;; stream
CFW377	stream/river	Nolan Ck;; stream
CFW378	stream/river	Nolan Ck;; stream
CFW379	stream/river	Nolan Ck;; stream
CJL655	stream/river	stream
CJL656	stream/river	stream
CJL657	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
Brooks Range	porphyry copper	Proterozoic, Devonian, or Cretaceous grantitic intrusions in the Brooks Range.
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.