Scientific data near [62.39000,-157.98000]

Search area extends approximately 2.2 km east-west and 4.8 km north-south.

Geographic context

Counties, states, countries, continents, or oceans
Yukon-Koyukuk	Census area
Alaska	state
United States	country
North America	continent
Land	continent
Map quadrangles, from USGS or Canadian NTS
Iditarod B-4	1:63,360 Alaska quadrangle
Iditarod	1:250,000 Alaska quadrangle
Watershed boundaries (USGS hydrologic units)
Lower Innoko River	hydrologic unit
190408	hydrologic accounting unit
Southwest 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
Kk	Sedimentary	Kuskokwim Group, undivided
Kmvi	Igneous - Volcanic	Mafic to intermediate volcano-plutonic complexes
Qs	Unconsolidated	Unconsolidated surficial deposits, undivided
TKg	Igneous - Plutonic	Felsic granitic rocks

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
West-Central Alaska	M-D	West-Central Alaska 21360 line km with spacing 9.60 km over parts of AK
Iditarod	M/R-D	Iditarod 2301 line km with spacing 9.60 km over parts of AK
Aniak	M/EM-D	Aniak 9186 line km with spacing 0.40 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-SW05	Peraluminous granite porphyry gold
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
Farewell buried	Back-arc basin	Alaska

Radiometric ages of rocks from Alaska

Radiometric ages of rocks or minerals sampled from Alaska. The data were collected from professional publications and/or received from researchers and used by permission.

Database Home

Record	Type	Comment
1895

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
ACL651	soil
ACL652	soil
ACL653	soil
ACL654	soil
ACL655	soil
ACL656	soil
ACL657	soil
ACL658	soil
ACL659	soil
ACL660	soil
ACL661	soil
ACL662	soil
ACL663	soil
ACL664	soil
ACL665	soil
ACL666	soil
ACL667	soil
ACL668	soil
ACL669	soil
ACL706	soil
ACL707	soil
ACL708	soil
ACL709	soil
ACL710	soil
ACL711	soil
ACL712	soil
ACL713	soil
ACL738	soil
ACL739	soil
ACL740	soil
ACL741	soil
ACL742	soil
ACL743	soil
ACL744	soil
ACL745	soil
ACL746	soil
ACL747	soil
ACL748	soil
BFN826	concentrate	panned C3 fraction
CGY075	rock	igneous monzonite
CGY564	rock
CGY565	rock
CGY566	rock
CHB118	mineral
CHB119	mineral
CHB120	mineral
CHB121	mineral
CHB122	mineral
CHB123	mineral
D153616	concentrate	panned C3 fraction
F000431	rock	igneous monzonite
F000438	rock	igneous monzonite

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
CGY075	unspecified
CGY564	unspecified
CGY565	unspecified
CGY566	unspecified
F000431	igneous	monzonite
F000438	igneous	monzonite

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
Idaho; Upgrade; Wildcat; Trail	Inactive	Au
Chicken Mountain	Active	Au

An index to PGE-Ni-Cr deposits and occurrences in selected mineral-occurrence databases (web-accessible database)

A compendium of references to previously published databases and database records that describe PGE, nickel, and chromium deposits and occurrences. These data show where to obtain more detailed information about each deposit or occurrence.

Database Home

Deposit name	Deposit type	Location
Chicken Mountain	Occurrence	Alaska, United States

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
ACL651		auger spl of decomposed ign mtl; spl collected by USBM;
ACL652		auger spl of decomposed ign mtl; spl collected by USBM;
ACL653		auger spl of decomposed ign mtl; spl collected by USBM;
ACL654		auger spl of decomposed ign mtl; spl collected by USBM;
ACL655		auger spl of decomposed ign mtl; spl collected by USBM;
ACL656		auger spl of decomposed ign mtl; spl collected by USBM;
ACL657		auger spl of decomposed ign mtl; spl collected by USBM;
ACL658		auger spl of decomposed ign mtl; spl collected by USBM;
ACL659		auger spl of decomposed ign mtl; spl collected by USBM;
ACL660		auger spl of decomposed ign mtl; spl collected by USBM;
ACL661		auger spl of decomposed ign mtl; spl collected by USBM;
ACL662		auger spl of decomposed ign mtl; spl collected by USBM;
ACL663		auger spl of decomposed ign mtl; spl collected by USBM;
ACL664		auger spl of decomposed ign mtl; spl collected by USBM;
ACL665		auger spl of decomposed ign mtl; spl collected by USBM;
ACL666		auger spl of decomposed ign mtl; spl collected by USBM;
ACL706		auger spl of decomposed ign mtl; spl collected by USBM;
ACL707		auger spl of decomposed ign mtl; spl collected by USBM;
ACL708		auger spl of decomposed ign mtl; spl collected by USBM;
ACL709		auger spl of decomposed ign mtl; spl collected by USBM;
ACL710		auger spl of decomposed ign mtl; spl collected by USBM;
ACL711		auger spl of decomposed ign mtl; spl collected by USBM;
ACL738		auger spl of decomposed ign mtl; spl collected by USBM;
ACL739		auger spl of decomposed ign mtl; spl collected by USBM;
ACL740		auger spl of decomposed ign mtl; spl collected by USBM;
ACL741		auger spl of decomposed ign mtl; spl collected by USBM;
ACL742		auger spl of decomposed ign mtl; spl collected by USBM;
ACL743		auger spl of decomposed ign mtl; spl collected by USBM;
ACL744		auger spl of decomposed ign mtl; spl collected by USBM;
ACL745		auger spl of decomposed ign mtl; spl collected by USBM;
ACL746		auger spl of decomposed ign mtl; spl collected by USBM;
ACL747		auger spl of decomposed ign mtl; spl collected by USBM;
ACL748		auger spl of decomposed ign mtl; spl collected by USBM;

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
BFN826	stream/river	stream
D153616	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
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.