Scientific data near [64.87342,-165.18805]

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 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

Database Home

Map symbol	Lithology	Unit name
DOnx	Metamorphic	Marble, graphitic rocks, and 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.

Database Home

ID	Data type	Description
Seward Peninsula	M-D	Seward Peninsula 24944 line km with spacing 0.40 km over parts of AK
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-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
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.

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
BDB470	concentrate	panned only concentrate
BDB484	concentrate	panned only concentrate
BDB514	concentrate	panned only concentrate
BDB515	concentrate	panned only concentrate
BDB530	concentrate	panned only concentrate
BDB605	concentrate	panned only concentrate
BDB665	concentrate	panned only concentrate
BDN038	rock	metamorphic schist
CAG105	sediment
CAG107	sediment
CAG142	sediment
CAG143	sediment
CAG201	sediment
CAG202	sediment
CAG203	sediment
CAG204	sediment
M126182	rock	metamorphic marble
M126183	rock	metamorphic schist
M126184	rock	metamorphic quartzite
W194577	soil

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.

Database Home

Sample ID	Date collected	Sample type
7024181	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.

Database Home

Sample ID	Date collected	Sample type
3025851	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"

Database Home

Sample ID	Rock type	Rock name
BDN038	metamorphic	schist
M126182	metamorphic	marble
M126183	metamorphic	schist
M126184	metamorphic	quartzite
W194611	metamorphic	marble
W194612	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.

Database Home

Site name	Development	Commodities
Copper Creek	Prospect	CU

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
CAG105	stream/river	stream
CAG107	stream/river	stream
CAG142	stream/river	stream
CAG143	stream/river	stream
CAG201	stream/river	stream
CAG202	stream/river	stream
CAG203	stream/river	stream
CAG204	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
BDB470	stream/river	stream
BDB484	stream/river	stream
BDB514	stream/river	stream
BDB515	stream/river	stream
BDB516	stream/river	stream
BDB530	stream/river	stream
BDB605	stream/river	stream
BDB665	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.