Ambler River Headwaters

Occurrence in Alaska, United States with commodity Copper

Geologic information

Identification information

Deposit ID 10111388
MRDS ID A011901
Record type Site
Current site name Ambler River Headwaters

Geographic coordinates

Geographic coordinates: -156.52352, 67.58956 (WGS84)
Relative position Location is near headwaters of the Ambler River and south of Nakmaktuak Pass in T. 25 N., R. 10 E., Kateel River Meridian. Shown as locality 60 in Mayfield and Grybeck (1978) and accurate to within 2000 ft. (600 m).??
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary

Materials information

Materials Type of material
Azurite Ore
Chalcopyrite Ore
Malachite Ore

Mineral occurrence model information

Model code 72
USGS model code 19a
Deposit model name Polymetallic replacement
Mark3 model number 47

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Marble

Nearby scientific data

(1) -156.52352, 67.58956

Comments on the geologic information

  • Geologic Description = Malachite, azurite and chalcopyrite in quartz veins cutting marble near contact with phyllite; traceable for at least 50 m.

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Noatak

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A011901
USGS Alaska Resource Data File ARDF AR056

Bibliographic references

  • Deposit

    MAYFIELD, C.F., AND GRYBECK, DONALD, 1978, MINERAL OCCURRENCES AND RESOURCES MAP OF THE AMBLER RIVER QUADRANGLE, ALASKA: U.S. GEOLOGICAL SURVEY OPEN-FILE MAP 78-120 I, 1 SHEET, SCALE 1:250,000

  • Other Database

    BAG-OFR-78-120I-60

Comments on the references

  • Primary Reference = Mayfield and Grybeck, 1978

General comments

Subject category Comment text
Deposit Model Name = Polymetallic vein?
Deposit Other Comments = Other occurrences nearby consist of malachite in quartz veins cutting marble at a thrust contact and of malachite in conglomerate.

Reporter information

Type Date Name Affiliation Comment
Reporter 26-OCT-1992 K.R. Leonard U.S. Geological Survey
Reporter 26-OCT-1992 R.L. Elliott U.S. Geological Survey
Reporter 26-OCT-1992 J.M. Schmidt U.S. Geological Survey