Scientific data near [64.76909,-165.45240]

Search area extends approximately 8.9 km east-west and 20.9 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
Nome D-1	1:63,360 Alaska quadrangle
Nome	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
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-D	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-WC17	Placer Au
AK-WC01	Besshi massive sulfide
AK-WC23	Cu (Au) skarn
AK-WC09	Low-sulfide Au-quartz veins
AK-WC18	Polymetallic replacement
AK-WC20	Polymetallic vein
AK-WC25	Zn-Pb skarn
AK-WC27	Sedex Zn-Pb

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
BDN196	concentrate	panned only concentrate
BDN287	concentrate	panned only concentrate
BDN327	sediment
BDN328	sediment
BDN353	sediment
BDN354	sediment
BDN380	sediment
BDN381	sediment
BDN408	sediment
BDN409	sediment
BDN436	sediment
BDN437	sediment
BDN464	sediment
BDN465	sediment
BDN529	rock	metamorphic unspecified
BDN542	rock	metamorphic unspecified
BFQ004	sediment
BFQ110	sediment
BFQ114	sediment
BFQ154	sediment
BFQ157	sediment
BFQ187	concentrate	panned only concentrate
BFQ189	concentrate	panned only concentrate
BFQ263	concentrate	panned only concentrate
BFQ265	concentrate	panned only concentrate
BFQ682	sediment
BFQ687	sediment
C234177	sediment
C234178	sediment
C238519	sediment
CAG088	sediment
CAG090	sediment
CJL672	concentrate	panned only concentrate
CJL673	concentrate	panned only concentrate
CJL674	concentrate	panned only concentrate
M114135	rock	metamorphic metagraywacke
M114148	rock	metamorphic metagraywacke
M126550	sediment
M127574	sediment

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
7024155	1978-07-17	Wet stream sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves.
7024156	1978-07-17	Wet stream sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves.
7024166	1978-07-17	Wet stream sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves.
7024167	1978-07-17	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
3025824	1978-07-17	Stream water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3025825	1978-07-17	Stream water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3025835	1978-07-17	Stream water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3025836	1978-07-17	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
BDN529	metamorphic	unspecified
BDN542	metamorphic	unspecified
M114135	metamorphic	metagraywacke
M114148	metamorphic	metagraywacke

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.

Database Home

Site name	Development	Commodities
California Mine	Past Producer	AU SB
Stewart River (above Mountain Creek)	Past Producer	AU
Fred Creek (or Fred Gulch--placer)	Past Producer	AU SN
Goldbottom Creek	Producer	AU SN
California	Past Producer	AU AG MO SB W
Goldbottom Creek	Past Producer	AU SN
California	Occurrence	W SB AU MO
California	Prospect	AU SB MO W
Unnamed (lode near Fred Creek)	Prospect	AU AS
Fred Gulch	Past Producer	AU SN
Stewart River	Past Producer	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
Stewart River (above Mountain Cr...	Inactive	Au
California; Connolly and Jensen ...	Probably inactive	Au
Unnamed (lode near Fred Creek)	Probably inactive	Au
Fred Creek (or Fred Gulch--place...	Inactive	Au
Goldbottom 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.

Database Home

Sample ID	Sample source	Sample notes
BDN327	stream/river	stream
BDN328	stream/river	stream
BDN353	stream/river	stream
BDN354	stream/river	stream
BDN380	stream/river	stream
BDN381	stream/river	stream
BDN408	stream/river	stream
BDN409	stream/river	stream
BDN436	stream/river	stream
BDN437	stream/river	stream
BDN464	stream/river	stream
BDN465	stream/river	stream
BFQ004	stream/river	stream
BFQ110	stream/river	stream
BFQ114	stream/river	stream
BFQ154	stream/river	stream
BFQ157	stream/river	stream
BFQ682	stream/river	stream
BFQ687	stream/river	stream
C234177	stream/river
C234178	stream/river
C238519	stream/river
CAG088	stream/river	stream
CAG090	stream/river	stream
M126550	stream/river	rock aggregate: graphitic and chloritic schist, ma;; stream
M127574	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.

Database Home

Sample ID	Sample source	Sample notes
BDN196
BDN287	mine dump/waste rock	mixed base-precious metal mineralization;
BFQ187	stream/river	stream
BFQ189	stream/river	stream
BFQ263	stream/river	stream
BFQ265	stream/river	stream
CJL672	stream/river	precious metal mineralization;; Jensen Camp, spiral conc;; stream
CJL673	stream/river	precious metal mineralization;; Jensen Camp, stamp mill;; stream
CJL674	stream/river	precious metal mineralization;; Jensen Camp, qtz vein;; 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.

Database Home

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.