Horse Creek

Prospect in Alaska, United States with commodities Copper, Lead, Zinc

Geologic information

Identification information

Deposit ID 10096779
MRDS ID A011886
Record type Site
Current site name Horse Creek
Alternate or previous names Cliff, Dh, Lost

Geographic coordinates

Geographic coordinates: -156.70349, 67.30955 (WGS84)
Relative position Located north of VABM Ruby on ridge between Ambler and Shungnak Rivers in sec. 17, T. 22 N., R. 10 E., Kateel River Meridian. Shown as locality 39 in Mayfield and Grybeck (1978) and accurate to within 2000 ft. (600 m).?
(click for info)

Geographic areas

Country State
United States Alaska


Commodity Importance
Copper Primary
Lead Primary
Zinc Primary

Materials information

Materials Type of material
Bornite Ore
Chalcopyrite Ore
Galena Ore
Sphalerite Ore
Calcite Gangue
Pyrite Gangue
Quartz Gangue
Sericite Gangue

Mineral occurrence model information

Model code 184
USGS model code 28a
Deposit model name Massive sulfide, kuroko
Mark3 model number 93

Host and associated rocks

  • Host or associated Associated
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone
    Rock unit name Ambler Sequence;Ambler Sequence
    Rock description Ambler Sequence;Ambler Sequence
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Siltstone
    Rock unit name Ambler Sequence; Adggs Gr 75;Ambler Sequence; Adggs Gr 75
    Rock description Ambler Sequence; Adggs Gr 75;Ambler Sequence; Adggs Gr 75

Nearby scientific data

(1) -156.70349, 67.30955

Comments on the geologic information

  • Geologic Description = Pyrite, chalcopyrite, bornite, galena and sphalerite form lenses, stringers, disseminations, and locally massive pods in metamorphosed Devonian-Mississippian volcanic, volcaniclastic, and sedimentary rocks. Sulfide lenses are complexly folded and faulted. Country rocks are interbedded porphyroblastic quartz-muscovite-calcite schist, graphitic schist, greenstone, (some have pillow structure, and some occur as plugs and sills throughout the section), and weakly metamorphosed semischistose graywacke (Nana Development Corp., written comm., 1997). Deposit is reported similar to Artic deposit (AR025).
  • Age = Devonian

Economic information

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Active

Mining district

District name Shungnak

Comments on the workings information

  • Workings / Exploration = Surface geologic mapping, electromagnetic studies, geochemical sampling, trenching, and eight drill holes.??

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A011886
USGS Alaska Resource Data File ARDF AR029

Bibliographic references

  • Deposit

    Degenhart, C.E., and Bigelow, C.G., 1974, Preliminary minerals evaluation NANA Regional Corporation selection lands: WGM, Inc., Anchorage, Alaska, unpublished report, 84 p. (Report held by NANA Regional Corporation, Anchorage, Alaska).

  • Deposit

    Mayfield, C.F. and Grybeck, D., 1978, Mineral occurrences and resource map of the Ambler river quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-120I, 1 sheet, scale 1:250,000.

  • Deposit

    Sicherman, H.A., Russell, R.H., and Fikkan, P.R., 1976, The geology and mineralization of the Ambler district, Alaska: Spokane, Washington, Bear Creek Mining Company, 22 p.

Comments on the references

  • Primary Reference = Sichermann and others, 1976

General comments

Subject category Comment text
Deposit Model Name = Kuroko
Deposit Other Comments = This massive sulfide prospect is in the Ambler schist belt. Nana Develpment Corporation information based on a 1984 unpublished Bear Creek Exploration report.

Reporter information

Type Date Name Affiliation Comment
Reporter 30-APR-1997 K.R. Leonard U.S. Geological Survey
Reporter 30-APR-1997 R.L. Elliott U.S. Geological Survey
Reporter 30-APR-1997 J.M. Schmidt U.S. Geological Survey
Reporter 30-APR-1997 S.W. Nelson U.S. Geological Survey