Scientific data near [64.65181,-164.24049]

Search area extends approximately 1.1 km east-west and 2.6 km north-south.

Geographic context

Counties, states, countries, continents, or oceans
Nome	Census area
Alaska	state
United States	country
North America	continent
Land	continent
Map quadrangles, from USGS or Canadian NTS
Solomon C-5	1:63,360 Alaska quadrangle
Solomon	1:250,000 Alaska quadrangle
Watershed boundaries (USGS hydrologic units)
Nome	hydrologic unit
190501	hydrologic accounting unit
South Central 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
DOnx	Metamorphic	Marble, graphitic rocks, and schist
Pzncs	Metamorphic	Younger schist

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-D	Cady -9999 line km with spacing 0.40 km over parts of AK
Solomon	M/R-D	Solomon 531 line km with spacing 9.60 km over parts of AK
Council	M/EM-D	Council 4559 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-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
AJP916	sediment
CEX223	sediment
CFD156	concentrate	panned C3 fraction
CGA684	rock
CGA685	rock
CGA686	rock
CGA699	rock	metamorphic unspecified
CGA700	rock	metamorphic schist
CGA701	rock	metamorphic unspecified
CGA702	rock	metamorphic unspecified
M124822	sediment
M127579	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
CGA684	unspecified
CGA685	unspecified
CGA686	unspecified
CGA699	unspecified
CGA700	metamorphic	schist
CGA701	unspecified
CGA702	unspecified
M126221	metamorphic	quartzite

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
Big Hurrah Mine	Past Producer	AU AG W
Big Hurrah Mine	Producer	AU AG W ZN CU
Big Hurrah	Producer	AU AG CU W ZN
Big Hurrah	Occurrence	W AU AG

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
Big Hurrah	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
AJP916	stream/river	sample collected by Alaska DGGS;; stream
CEX223	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
CFD156	stream/river	stream
CHJ173	stream/river	Hurrah Lode, mill;; 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.

Prospect- and mine-related features on USGS topographic maps

Symbols indicating mining-related features digitized from historical USGS topographic maps in the western part of the conterminous US. Includes prospect pits, mine shafts and adits, quarries, open-pit mines, tailings piles and ponds, gravel and borrow pit

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Feature ID	Feature type	Feature name
Open Pit Mine	point	Big Hurrah Mine
Tailings - Undifferentiated	polygon	Big Hurrah Mine