Scientific data near [65.51083,-148.54444]

Search area extends approximately 2.2 km east-west and 5.4 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
Livengood C-4	1:63,360 Alaska quadrangle
Livengood	1:250,000 Alaska quadrangle
Watershed boundaries (USGS hydrologic units)
Tolovana River	hydrologic unit
190405	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
Dcr	Sedimentary	Cascaden Ridge and Beaver Bend combined correlative units
DZkb	Sedimentary	Older carbonate strata of the Porcupine River sequence of Brosgé and Reiser (1969) and equivalent units
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
Northeast Alaska '73	M-D	Northeast Alaska '73 25044 line km with spacing 1.60 km over parts of AK
Livengood	M/EM-D	Livengood 1687 line km with spacing 0.40 km over parts of AK
Alaska Regional	M-Dz	Alaska Regional 14484 line km with spacing 16.10 km over parts of AK
Northeast Alaska '72	M-D	Northeast Alaska '72 27841 line km with spacing 1.90 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-EC07	Low-sulfide Au-quartz veins
AK-EC13	Porphyry Cu, BC-Ak type
AK-EC14	Plutonic porphyry Au
AK-EC16	Polymetallic replacement
AK-EC19	Cu (Au) skarn
AK-EC18	Polymetallic vein
AK-EC20	Zn-Pb skarn
AK-EC09	Kipushi Cu-Pb-Zn
AK-EC11	Mississippi Valley Type
AK-EC15	Placer Au
AK-EC21	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
Wickersham	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
CGW709	mineral
CGW710	mineral
CGW711	mineral
CGW712	mineral
CGW713	mineral
CGW714	mineral
CGW715	mineral
CGW718	mineral
CGW719	mineral
CGW720	mineral
CGW721	mineral
CGW722	mineral
CGW723	mineral
CGW724	mineral
CGW725	mineral
CGW726	mineral
CGW727	mineral
CGW728	mineral
CGW729	mineral
CGW730	mineral
CGW731	mineral
CGW732	mineral
CGW733	mineral
CGW734	mineral
CGW735	mineral
CGW736	mineral
CGW737	mineral
CGW738	mineral
CGW739	mineral
CGW740	mineral
CGW741	mineral
CHA458	concentrate	panned C3 fraction
CHA459	concentrate	panned C3 fraction
CHA460	concentrate	panned C3 fraction
CHW937	rock	sedimentary claystone
CHW938	rock	igneous unspecified
D310229	soil
D310230	soil
D310231	soil
D310232	soil
D310233	soil
D310234	soil
D310235	soil
D310236	soil
D310237	soil
D310238	soil
D310239	soil
D310240	soil
D310241	soil
D310242	soil
D310243	soil
D310244	soil
D310245	soil
D310246	soil
D310247	soil
D310248	soil
D310249	soil
D310250	soil
D310251	soil
D310252	soil
D310253	soil
D310254	soil
D310255	soil
D310256	soil
D310257	soil
D310258	soil
D310259	soil
D310260	soil
D310261	soil
D310262	soil
D310263	soil
D310264	soil
D310265	soil
D342314	concentrate	wilfley table concentrate
D342315	concentrate	wilfley table concentrate
D342316	concentrate	wilfley table concentrate
D342317	concentrate	wilfley table concentrate
D342318	concentrate	wilfley table concentrate
D342319	concentrate	wilfley table concentrate
D342320	concentrate	wilfley table concentrate
D342321	concentrate	wilfley table concentrate
D342322	concentrate	wilfley table concentrate
D342323	concentrate	wilfley table concentrate
D342324	concentrate	wilfley table concentrate
D342325	concentrate	wilfley table concentrate
D342326	concentrate	wilfley table concentrate
D342327	concentrate	wilfley table concentrate
D342328	concentrate	wilfley table concentrate
D342329	concentrate	wilfley table concentrate
D342330	concentrate	wilfley table concentrate
D342331	concentrate	wilfley table concentrate
M181256	rock	igneous gabbro

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
CHW936	igneous	felsic
CHW937	sedimentary	claystone
CHW938	igneous	unspecified
M181256	igneous	gabbro

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
Griffin	Prospect	AU CR NI
Lillian Creek	Prospect	AU AG HG SB
Ruth Creek	Prospect	AU AG CR
Satellite	Past Producer	AU SB CR CO HG NI AG U
Ruth Creek	Past Producer	AU SB CR HG AG
Lillian Creek	Past Producer	AU SB CR HG NI AG W
Lillian Creek	Occurrence	W SB CR AU HG

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
Lillian Creek	Inactive	Au
Lillian	Inactive	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
Ruth Creek Placer	Producer	Alaska, United States
Livengood Creek Placer	Producer	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
D310229		horizon 34-67"";
D310230		horizon 67-74"";
D310231		horizon 0-2"";
D310232		horizon 2-12"";
D310233		horizon 4-30"";
D310234		horizon 34+"";
D310235		horizon 24-30"";
D310236		horizon 4-30"";
D310237		horizon 12+"";
D310238		horizon 4-18"";
D310239		horizon 30-34"";
D310240		horizon 5-9"";
D310241		horizon 0+"";
D310242		horizon 0-5"";
D310243		horizon 9-20"";
D310244		horizon 4-19"";
D310245		horizon 4-10"";
D310246		horizon 40+"";
D310247		horizon 5-14"";
D310248		horizon 74+"";
D310249		horizon 0-4"";
D310250		horizon 0-5"";
D310251		horizon 20+"";
D310252		horizon 0-4"";
D310253		horizon 10-40"";
D310254		horizon 14-23"";
D310255		horizon 19-24"";
D310256		horizon 0-4"";
D310257		horizon 0-4"";
D310258		horizon 0-4"";
D310259		horizon 23+"";
D310260		horizon 12+"";
D310261		horizon 0-2"";
D310262		horizon 67-74"";
D310263		horizon 34-67"";
D310264		horizon 2-12"";
D310265		horizon 30-34"";

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
D342314	stream/river	sample collected from Wilfley table;; concentrate;; stream
D342315	stream/river	sample collected from Wilfley table;; concentrate;; stream
D342316	stream/river	sample collected from Wilfley table;; concentrate;; stream
D342317	stream/river	sample collected from Wilfley table;; concentrate;; stream
D342318	stream/river	sample collected from Wilfley table;; concentrate;; stream
D342319	stream/river	sample collected from Wilfley table;; concentrate;; stream
D342320	stream/river	sample collected from Wilfley table;; concentrate;; stream
D342321	stream/river	sample collected from Wilfley table;; concentrate;; stream
D342322	stream/river	sample collected from Wilfley table;; concentrate;; stream
D342323	stream/river	sample collected from Wilfley table;; concentrate;; stream
D342324	stream/river	sample collected from Wilfley table;; concentrate;; stream
D342325	stream/river	sample collected from Wilfley table;; concentrate;; stream
D342326	stream/river	sample collected from Wilfley table;; concentrate;; stream
D342327	stream/river	sample collected from Wilfley table;; concentrate;; stream
D342328	stream/river	sample collected from Wilfley table;; concentrate;; stream
D342329	stream/river	sample collected from Wilfley table;; concentrate;; stream
D342330	stream/river	sample collected from Wilfley table;; concentrate;; stream
D342331	stream/river	sample collected from Wilfley table;; concentrate;; 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.