Scientific data near [61.06910,-160.06370]

Search area extends approximately 1.1 km east-west and 2.3 km north-south.

Geographic context

Counties, states, countries, continents, or oceans
Bethel	Census area
Alaska	state
United States	country
North America	continent
Land	continent
Map quadrangles, from USGS or Canadian NTS
Russian Mission A-3	1:63,360 Alaska quadrangle
Russian Mission	1:250,000 Alaska quadrangle
Watershed boundaries (USGS hydrologic units)
Kuskokwim Delta	hydrologic unit
190305	hydrologic accounting unit
Yukon	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
Kmgr	Igneous - Plutonic	Granitic rocks of central and southeast Alaska

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
Bethel '88, Phillips comp. 1/2 km grid	M-Dg	Bethel '88, Phillips comp. 1/2 km grid -9999 line km with spacing 0.40 km over parts of AK
Bethel	M-D	Bethel 12391 line km with spacing 9.60 km over parts of AK
Nyac Mining District	M/EM-D	Nyac Mining District 1366 line km with spacing 0.40 km over parts of AK
Russian Mission	M/R-D	Russian Mission 2220 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-SW20	Epithermal vein, hot spring Au
AK-SW14	Placer Au
AK-SW13	Plutonic porphyry Au
AK-SW16	Polymetallic vein

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
Nyac	Oceanic arc	Alaska

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A comprehensive database of Alaskan mineral deposits compiled from the published literature and from unpublished reports and data from industry, the US Bureau of Land Management, and USGS.

Database Home

Site	Status	Commodities
Blueberry	Active	Cu

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
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.