Scientific data near [64.66109,-164.28057]

Search area extends approximately 2.2 km east-west and 5.2 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

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
Council	M/EM-D	Council 4559 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

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
AJJ021	sediment
AJP911	sediment
AJP912	sediment
C257815	soil
C257816	soil
C257817	soil
C257821	soil
C257822	soil
C257823	soil
C257824	soil
C257825	soil
C257826	soil
C257827	soil
C257828	soil
C257829	soil
C257830	soil
C257831	soil
C257832	soil
C257833	soil
C257834	soil
C257835	soil
C257836	soil
C257837	soil
C257838	soil
C257839	soil
C257840	soil
C257841	soil
CGL002	rock	metamorphic schist
CGL004	rock	metamorphic unspecified
CGL054	rock	metamorphic unspecified

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
CGL002	metamorphic	unspecified
CGL004	metamorphic	unspecified
CGL054	metamorphic	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
R.W. Silver Prospect	Occurrence	AU AG W
Trilby Mountain	Prospect	AU SB AG
Unnamed (north of Big Hurrah Creek)	Prospect	AU SB

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 (north of Big Hurrah Cre...	Probably inactive	Au;Sb

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
AJJ025	stream/river	sample collected by Alaska DGGS;; stream
AJP911	stream/river	sample collected by Alaska DGGS;; stream
AJP912	stream/river	sample collected by Alaska DGGS;; 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
C257821	tundra/alpine tundra	soil horizon
C257822	tundra/alpine tundra	soil horizon
C257823	tundra/alpine tundra	soil horizon
C257824	tundra/alpine tundra	soil horizon
C257825	tundra/alpine tundra	soil horizon
C257826	tundra/alpine tundra	soil horizon
C257827	tundra/alpine tundra	soil horizon
C257828	tundra/alpine tundra	soil horizon
C257829	tundra/alpine tundra	soil horizon
C257833	tundra/alpine tundra	soil horizon
C257834	tundra/alpine tundra	soil horizon
C257835	tundra/alpine tundra	soil horizon
C257836	tundra/alpine tundra	soil horizon
C257837	tundra/alpine tundra	soil horizon
C257838	tundra/alpine tundra	soil horizon
C257839	tundra/alpine tundra	soil horizon
C257840	tundra/alpine tundra	soil horizon
C257841	tundra/alpine tundra	soil horizon

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
CJL650	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.