Unnamed (on Alder Creek)

Prospect in Alaska, United States with commodity Gold

Geologic information

Identification information

Deposit ID 10003215
MRDS ID A016026
Record type Site
Current site name Unnamed (on Alder Creek)

Geographic coordinates

Geographic coordinates: -166.19334, 65.06234 (WGS84)
Relative position Alder Creek is an east tributary to Gold Run who's mouth is 1.9 miles upstream of the confluence of Gold Run and Bluestone River. This lode prospect is located on the south side of the creek, at approximately 320 feet surface elevation, 1,000 feet southeast of the confluence with Gold Run. This prospect is just southeast of the facilities of Sullivan's Camp and it is shown as a prospect occurrence on the USGS 1:63,360 topographic map of the Teller A-3 quadrangle. It is locality 21 of Cobb and Sainsbury (1972). Cobb (1975) summarized relevant references under the name 'Alder Cr.'.
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary

Comments on the commodity information

  • Gangue = talcose altered material

Materials information

Materials Type of material
Gold Ore
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Clay and sericite (?) may be source of talcose material noted by Collier and others (1908).

Mineral occurrence model information

Model code 273
USGS model code 36a
Deposit model name Low-sulfide Au-quartz vein
Mark3 model number 27

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Nome Group;Nome Group
    Rock description Nome Group;Nome Group

Nearby scientific data

(1) -166.19334, 65.06234

Comments on the geologic information

  • Geologic Description = This is a lode prospect initially exposed on lower Alder Creek by placer operations and subsequently explored to a depth of 60 feet from exposures on the south side of the creek. The prospect is an altered fault (?) zone, in one place 16 feet wide, along a contact between schistose carbonate rocks in the hanging wall and metapelitic rocks in the footwall (Collier and others, 1908, p. 279-280). The altered zone is a talcose material with quartz stringers and blebs, pyrite, and fine gold. A sample assayed 0.06 opt gold and a trace of silver (Collier and others, 1908).??
  • Age = Not known; apparently post-dates regional deformation and metamorphism which is Late Jurassic/Early Cretaceous in age.

Economic information

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Probably inactive

Mining district

District name Port Clarence

Comments on the reserve resource information

  • Reserves = Not defined

Comments on the workings information

  • Workings / Exploration = Some surface workings and shallow exporation to depth of 60 feet has been noted.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A016026
USGS Alaska Resource Data File ARDF TE095

Bibliographic references

  • Deposit

    Collier, A. J., Hess, F.L., Smith, P.S., and Brooks, A.H., 1908, The gold placers of parts of Seward Peninsula, Alaska, including the Nome, Council, Kougarok, Port Clarence, and Goodhope precincts: U.S. Geological Survey Bulletin 328, 343 p.

  • Deposit

    Sainsbury, C.L., Kachadoorian, Reuban, Hudson, Travis, Smith, T.E., Richards, T.R., and Todd, W.E., 1969, Reconnaissance geologic maps and sample data, Teller A-1, A-2, A-3, B-1, B-2, B-3, C-1, and Bendeleben A-6, B-6, C-6, D-5, and D-6 quadrangles. Seward Peninsula, Alaska: U.S. Geological Survey Open-File Report 377, 49 p., 12 sheets, scale 1:63,360.

  • Deposit

    Sainsbury, C.L., 1972, Geologic map of the Teller quadrangle, Seward Peninsula, Alaska: U.S. Geological Survey Map I-685, 4 p., 1 sheet, scale 1:250,000.

  • Deposit

    Cobb, E.H., and Sainsbury, C.L., 1972, Metallic mineral resource map of the Teller quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-426, 1 sheet, scale 1:250,000.

  • Deposit

    Cobb, E.H., 1975, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Teller quadrangle, Alaska: U.S. Geological Survey Open-File Report 75-587, 130 p.

Comments on the references

  • Primary Reference = Collier and others, 1908

General comments

Subject category Comment text
Deposit Model Name = Altered fault (?) contact with quartz stringers, pyrite, and fine gold. Possibly low sulfide Au-quartz vein model (Cox and Singer, 1986, model 36a).

Reporter information

Type Date Name Affiliation Comment
Reporter 10-MAY-1998 Travis L. Hudson Applied Geology