Scientific data near [64.71778,-165.60667]

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
Nome C-2	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

Database Home

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.

Database Home

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).

Database Home

Tract	Deposit Type	Mineralization age
AK-WC17	Placer Au
AK-WC01	Besshi massive sulfide
AK-WC09	Low-sulfide Au-quartz veins
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.

Database Home

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.

Database Home

Lab ID	Sample medium	Description
AJK384	soil
AJK385	soil
AJK386	soil
AJK387	soil
AJK388	soil
AJK389	soil
AJK390	soil
AJK391	soil
AJK392	soil
AJK393	soil
AJK394	soil
AJK395	soil
AJK396	soil
AJK397	soil
AJK398	soil
AJK399	soil
AJK400	soil
AJK401	soil
AJK402	soil
AJK403	soil
AJK404	soil
AJK405	soil
CBK021	rock
CBK022	rock
CBK023	rock

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"

Database Home

Sample ID	Rock type	Rock name
CBK021	unspecified
CBK022	unspecified
CBK023	unspecified

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
BDN312	stream/river	stream
BDN337	stream/river	stream
BDN363	stream/river	stream
BDN390	stream/river	stream
BDN418	stream/river	stream
BDN446	stream/river	stream
BDN474	stream/river	stream
BFQ022	stream/river	stream
BFQ127	stream/river	stream
BFQ172	stream/river	stream
BFQ702	stream/river	stream
CAG042	stream/river	stream
CAG066	stream/river	stream
CAG118	stream/river	stream
CAG120	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.

Database Home

Sample ID	Sample source	Sample notes
AJK386		sample collected by Alaska DGGS;
AJK387		sample collected by Alaska DGGS;
AJK388		sample collected by Alaska DGGS;
AJK389		sample collected by Alaska DGGS;
AJK390		sample collected by Alaska DGGS;
AJK391		sample collected by Alaska DGGS;
AJK392		sample collected by Alaska DGGS;
AJK393		sample collected by Alaska DGGS;
AJK394		sample collected by Alaska DGGS;
AJK395		sample collected by Alaska DGGS;
AJK396		sample collected by Alaska DGGS;
AJK397		sample collected by Alaska DGGS;
AJK398		sample collected by Alaska DGGS;
AJK399		sample collected by Alaska DGGS;
AJK400		sample collected by Alaska DGGS;
AJK401		sample collected by Alaska DGGS;
AJK402		sample collected by Alaska DGGS;
AJK403		sample collected by Alaska DGGS;
AJK404		sample collected by Alaska DGGS;
AJK405		sample collected by Alaska DGGS;

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
BFQ095	stream/river	stream
BFQ205	stream/river	stream
BFQ233	stream/river	stream
BFQ253	stream/river	stream
BFQ272	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.

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.