Scientific data near [64.86700,-148.00900]

Search area extends approximately 8.9 km east-west and 21.0 km north-south.

Geographic context

Counties, states, countries, continents, or oceans
Fairbanks North Star	Borough
Alaska	state
United States	country
North America	continent
Land	continent
Map quadrangles, from USGS or Canadian NTS
Fairbanks D-3	1:63,360 Alaska quadrangle
Fairbanks	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

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Map symbol	Lithology	Unit name
Dmi	Metamorphic	Metamorphosed mafic igneous rocks
PzPxyqs	Metamorphic	Quartzite and pelitic schist
PzPxyqs	Metamorphic	Quartzite and pelitic schist
Qs	Unconsolidated	Unconsolidated surficial deposits, undivided
Qs	Unconsolidated	Unconsolidated surficial deposits, undivided
Qs	Unconsolidated	Unconsolidated surficial deposits, undivided
w		Water

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.

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ID	Data type	Description
Alaska Regional	M-Dz	Alaska Regional 14484 line km with spacing 16.10 km over parts of AK
Big Delta-Fairbanks	M-Dz	Big Delta-Fairbanks 25749 line km with spacing 1.20 km over parts of AK
Big Delta-Fairbanks	M-Dz	Big Delta-Fairbanks 25749 line km with spacing 1.20 km over parts of AK
Fairbanks 1994	M/EM-D	Fairbanks 1994 4325 line km with spacing 0.40 km over parts of AK
Goldstream Valley	M/EM-D	Goldstream Valley 2029 line km with spacing 0.10 km over parts of AK
Fairbanks 1954	M-Dz	Fairbanks 1954 1713 line km with spacing 1.60 km over parts of AK
Fairbanks	M/R-D	Fairbanks 2035 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).

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Tract	Deposit Type	Mineralization age
AK-EC05	Au-Sb veins
AK-EC07	Low-sulfide Au-quartz veins
AK-EC08	Low-sulfide Au-quartz veins
AK-EC13	Porphyry Cu, BC-Ak type
AK-EC14	Plutonic porphyry Au
AK-EC18	Polymetallic vein
AK-EC15	Placer Au

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.

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Domain	Crust type	Region
Yukon-Tanana lower	Passive margin	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
UA743

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.

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Lab ID	Sample medium	Description
BFN352	concentrate	panned C3 fraction
BFN492	concentrate	panned C3 fraction
C214040	mineral
CGL583	rock	igneous felsic
CGL590	rock
CGL591	rock	igneous felsic
CGL593	rock
CGL594	rock
CGW854	mineral
CGW855	mineral
CGW856	mineral
CGW857	mineral
CGW858	mineral
CGW859	mineral
CGW860	mineral
CGW861	mineral
CGW862	mineral
CGW863	mineral
CGW864	mineral
CGW865	mineral
CGW866	mineral
CGW867	mineral
CGW868	mineral
CGW869	mineral
CGW870	mineral
CGW871	mineral
CGW888	mineral
CGW889	mineral
CGW890	mineral
CGW891	mineral
CGW896	mineral
CGW901	mineral
CGW902	mineral
CGW903	mineral
CGW904	mineral
CGW980	mineral
CGW981	mineral
CGW982	mineral
CGW992	mineral
CGW993	mineral
CGW994	mineral
CGW995	mineral
CHA534	concentrate	panned C3 fraction
CHA535	concentrate	panned C3 fraction
CHA536	concentrate	panned C3 fraction
CHA546	concentrate	panned C3 fraction
CHA561	concentrate	panned C3 fraction
CHA562	concentrate	panned C3 fraction
CHA563	concentrate	panned C3 fraction
CHA564	concentrate	panned C3 fraction
CHA565	concentrate	panned C3 fraction
CHA566	concentrate	panned C3 fraction
CHA569	concentrate	panned C3 fraction
CHA570	concentrate	panned C3 fraction
CHA571	concentrate	panned C3 fraction
CHA600	concentrate	panned C3 fraction
CHA601	concentrate	panned C3 fraction
CHA608	concentrate	panned C3 fraction
CHV963	concentrate	panned C3 fraction
CJK109	mineral
CJK110	mineral
CJK111	mineral
CJK112	mineral
CJK113	mineral
CJK114	mineral
CJK115	mineral
CJK116	mineral
CJK117	mineral
CJK118	mineral
CJK119	mineral
CJK120	mineral
CJK121	mineral
D150411	concentrate	panned C3 fraction
D152068	concentrate	panned C3 fraction
F000834	rock	igneous unspecified
F000835	rock	metamorphic unspecified
F000836	rock	igneous unspecified
F000837	rock	igneous unspecified
M119881	sediment
MIN100	concentrate	panned C3 fraction

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.

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Sample ID	Date collected	Sample type
7025602	1977-06-03	Wet artificial-pond sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves.
7025603	1977-06-03	Wet artificial-pond sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves.
7026675	1977-08-16	Dry stream sediment sample dried at less than or equal to 100øC (if necessary) 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.

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Sample ID	Date collected	Sample type
3027297	1977-06-03	Artificial-pond water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3027298	1977-06-03	Artificial-pond 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"

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Sample ID	Rock type	Rock name
C214040	unidentified
CGL583	igneous	felsic
CGL590	unspecified
CGL591	igneous	felsic
CGL593	unspecified
CGL594	unspecified
F000834	igneous	unspecified
F000835	metamorphic	unspecified
F000836	igneous	unspecified
F000837	igneous	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.

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Site name	Development	Commodities
McDonald	Past Producer	AU
Stay	Past Producer	AU SB
First Chance	Past Producer	AU
Clipper	Past Producer	AU SB
Ready Bullion #2	Past Producer	AU
Fair Chance	Past Producer	AU SB PB ZN
Mohawk	Past Producer	AU PB SB ZN
Prometheus	Prospect	AU AG CU SB
Stibnite	Past Producer	SB
Ester Creek	Past Producer	AU SB W
Wandering Jew	Past Producer	AU
Little Flower	Past Producer	AU
St. Paul	Past Producer	AU SB
Vuyovich	Past Producer	AU SB
Fair Chance	Past Producer	AU
Billy Sunday	Past Producer	AU PB SB ZN
Sanford	Past Producer	AU
Tyndall and Finn	Prospect	AU
Dorothy and Dorice	Prospect	SB AU
Cripple Creek	Past Producer	AU SN
Ready Bullion Creek	Producer	AU
Happy Creek	Past Producer	AU
Happy Creek	Past Producer	AU AG
Saint (St.) Patrick Creek	Past Producer	AU
Eva Creek	Producer	AU
Mohawk Mine	Past Producer	AU SB PB ZN
Ryan Lode	Past Producer	AU SB
Royal Flush	Past Producer	AU
Elmes	Past Producer	AU
Sheep Creek	Past Producer	AU
Ester Creek	Past Producer	AU SB W
Hilltop Zone	Plant	AU AG
Yellow Eagle	Past Producer	AU
Hegan and Lefebre	Prospect	AU
Michley	Past Producer	AU
Macomb	Prospect	AU
Ready Bullion	Past Producer	AU SB
Royal Flush	Past Producer	AU
Flower	Past Producer	AU
Elmes	Past Producer	AU
Eva Quartz Co. Prospect	Occurrence	AU
Ryan Mine	Prospect	AU SB AS
Michley	Past Producer	AU
Last Chance	Past Producer	AU SB
Ryan Mine	Past Producer	AU SB
Mohawk Mine	Past Producer	AU SB PB ZN AS
Crown Point	Prospect	AU
Killarney	Past Producer	AU
Wandering Jew	Past Producer	SB AU
Happy Ridge	Prospect	AU
Happy Cr	Prospect	AU
Lincoln	Past Producer	AU
Bondholder	Past Producer	AU
Big Blue	Prospect	AU
Camp Bird	Prospect	AU
Ester Creek	Occurrence	W AU SB
Macomb	Prospect	AU
Crown Point	Past Producer	AU SB
St. Patrick Cr	Prospect	AU
Sanford	Past Producer	AU
Tyndall & Finn	Past Producer	AU
Hess and Thomas	Prospect	AU
Irad	Prospect	AU
Ester Creek Placer	Past Producer	AU SB W
Ready Bullion Creek	Past Producer	AU
Cripple Cr	Prospect	F
Hess & Thomas	Prospect	AU
Unnamed (head of Eva Creek)	Prospect	AU
Ester Pit & Portable Mill	Past Producer	SDG
Carson Holt Placer	Past Producer	AU
Ryan Lode Leach	Producer	AU
Little Dome Creek	Prospect	AU
Big Blue	Prospect	AU

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
Sanford; Lone Tree	Inactive	Au
Yellow Eagle	Inactive	Au
Michley	Inactive	Au
Vuyovich	Inactive	Au
First Chance	Inactive	Au
Ready Bullion Creek	Active	Au
Hess and Thomas	Inactive	Au?
Tyndall and Finn	Inactive	Au
Vuyovich	Inactive	Au
Ester Creek	Inactive	Au
Unnamed (head of Eva Creek)	Inactive	Au
St. Paul; McCann, Thomas, Mickle...	Inactive	Au
Lincoln	Inactive	Au
Bondholder	Inactive	Au
Big Blue	Inactive	Au
Prometheus	Inactive	Au
Wandering Jew	Inactive	Au
Killarney	Inactive	Au
Stibnite	Inactive	Sb
Irad	Inactive	Au
Camp Bird	Inactive	Au
Clipper; Lounsbury	Inactive	Au
Little Flower; Flower; McCann an...	Inactive	Au
Hegan and Lefebre	Inactive	Au?
Eva Creek	Active?	Au
Macomb	Inactive	Au?
Sheep Creek	Inactive	Au
Royal Flush; Adler	Inactive	Au
Happy Creek	Inactive	Au
Elmes; Ethel; Nickaloff	Inactive	Au
Dorothy and Dorice; Cosgrove and...	Inactive	Sb
Last Chance	Inactive	Au
Mohawk; Bondholder; Bondholder E...	Inactive	Au
Fair Chance; Frisco; McGlove; Mi...	Inactive	Au
Billy Sunday; Leah Fraction; Smi...	Inactive	Au
Ryan Lode	Inactive	Ag;Au
McDonald; Morton; Blue Bird; Blu...	Inactive	Au
Crown Point; Comstock	Inactive	Au
Stay; Little Eva; Eva No. 2; Cur...	Inactive	Au
Cripple Creek	Inactive	Au

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.

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Sample ID	Sample source	Sample notes
M119881		clay;

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
BFN352	stream/river	stream
BFN492	stream/river	stream
CHA534	stream/river	St Patrick Mine;; stream
CHA536	stream/river	St Patrick Mine, + galena;; stream
CHA546	stream/river	Alder Lode;; stream
CHA561	stream/river	Lookout Shear;; stream
CHA562	stream/river	Lookout Shear;; stream
CHA563	stream/river	Lookout Shear;; stream
CHA564	stream/river	Lookout Shear;; stream
CHA565	stream/river	Lookout Shear;; stream
CHA566	stream/river	Lookout Shear;; stream
CHA569	stream/river	Ryan Lode;; stream
CHA570	stream/river	Ryan Lode;; stream
CHA571	stream/river	Ryan Lode;; stream
CHA600	stream/river	Clipper;; stream
CHA601	stream/river	Ester Ck prospect;; stream
CHA608	stream/river	Alder Ck;; stream
CHV963	stream/river	Clipper Mine; George Loundsberry;; stream
D150411	stream/river	stream
D152068	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.