Mount Goldie

Occurrence in Alaska, United States with commodities Gold, Arsenic, Beryllium, Cobalt, Copper, Chromium, Niobium (Columbium), Lead, Tin, Zinc

Geologic information

Identification information

Deposit ID 10000891
MRDS ID A011545
Record type Site
Current site name Mount Goldie

Geographic coordinates

Geographic coordinates: -150.84281, 62.72955 (WGS84)
Relative position Coordinates given here locate one of the two anomalous stream sediment sites described as the Mt. Goldie anomaly by Clark and Hawley (1968, Figure 2, no. 56). They report that the anomaly encompasses an area in Sections 31 and 32, T. 31 N., R. 8 W. and Sections 7 and 8, T. 30 N., R.8 W., of the Seward Meridian. The area lies within Denali National Park and Preserve.
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary
Arsenic Primary
Beryllium Primary
Cobalt Primary
Copper Primary
Chromium Primary
Niobium (Columbium) Primary
Lead Primary
Tin Primary
Zinc Primary

Comments on the commodity information

  • Ore Material = other unidentified minerals
  • Ore Material = other unidentified minerals.

Materials information

Materials Type of material
Gold Ore

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
    Chronological age 54.25
    Uncertainty 1.95
    Dating method K-Ar
    Stratigraphic age (youngest) Early Eocene

Nearby scientific data

(1) -150.84281, 62.72955

Comments on the geologic information

  • Geologic Description = Clark and Hawley (1968) describe the Mount Goldie silt anomaly as underlain by Mesozoic graywacke, quartzite and argillite (KJs) that are cut by Tertiary(?) aplite dikes and auriferous quartz veins. One rusty-weathering dike, about 3 feet wide, contains pyrite and arsenopyrite with minor gold. The aplite dikes may be related to the early Tertiary Kahiltna pluton (Tmk, Reed and Nelson, 1980) about four miles to the northwest. Two stream silt samples from streams draining this area contained 0.2 and 0.3 ppm gold, respectively (Clark and Hawley, 1968, Figure 2, no. 56). ? Stream sediment samples with elevated Au, As, Be, Co, Cu, Cr, Nb, Pb, Sn, and Zn values from four streams in the area between the Tokositna and Kahiltna Glaciers indicate the area is auriferous and could host mineralized prospects (Clark and Hawley, 1968). See Rocky Cummins (TL016).
  • Age = Tertiary; mineralization is interpreted to be linked to the Kahiltna pluton (Tmk), part of the McKinley Sequence, that has been determined to range from 52.3 to 56.2 m.y. in age by K/Ar method (Reed and Lanphere, 1972; Reed and Nelson, 1980).
  • Age = Chron age is for McKinley Sequence.

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Willow Creek

Comments on the workings information

  • Workings / Exploration = Reconnaissance mapping, stream silt and rock sampling are all that have been done here. Two stream sediment samples from drainages in this area contained 0.2 and 0.3 ppm gold, respectively (Clark and Hawley,1968).

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A011545
USGS Alaska Resource Data File ARDF TL015

Bibliographic references

  • Deposit

    Clark, A.L., and Hawley, C.C., 1968, Reconnaissance geology, mineral occurrences, and geochemical anomalies of the Yentna district, Alaska: U.S. Geological Survey Open-File Report 68-35, 64 p.

  • Deposit

    Reed, B.L., Nelson, S.W., Curtin, G.C., and Singer, D.A., 1978, Mineral resources map of the Talkeetna Quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-870-D, 1 sheet, scale 1:250,000.

  • Deposit

    Cobb, E.H., and Reed, B.L., 1980, Summaries of data and lists of reference to metallic and selected nonmetallic mineral deposits in the Talkeetna quadrangle, Alaska: U.S. Geological Survey Open-File Report 80-884, 106 p.

  • Deposit

    Reed, B.L., and Nelson, S.W., 1980, Geologic map of the Talkeetna quadrangle: U.S. Geological Survey Miscellaneous Investigations Map I-1174, scale 1:250,000.

  • Deposit

    MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous and selected non-metalliferous mineral deposits in the eastern part of southern Alaska: U.S. Geological Survey Open-File Report 77-169-A, 99 p., 1 sheet, scale 1:1,000,000.

Comments on the references

  • Primary Reference = Clark and Hawley, 1968

General comments

Subject category Comment text
Deposit Model Name = Possibly low-sulfide Au-quartz veins (Cox and Singer, 1986; model 36a).
Deposit Other Comments = the area lies within Denali National Park and Preserve.

Reporter information

Type Date Name Affiliation Comment
Reporter 10-AUG-1998 Madelyn A. Millholland Millholland & Associates