Egnaty Creek

Prospect in Alaska, United States with commodity Mercury

Geologic information

Identification information

Deposit ID 10002489
MRDS ID A013427
Record type Site
Current site name Egnaty Creek
Related records 10186031

Geographic coordinates

Geographic coordinates: -157.87898, 61.86632 (WGS84)
Relative position The Egnaty Creek site is approximately 0.3 miles (0.5 km) up the creek from its mouth on the Kuskokwim River. It is in the east central portion of section 34, T 21 N, R 47 W on the Sleetmute D5 quadrangle.
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Mercury Primary

Materials information

Materials Type of material
Cinnabar Ore

Mineral occurrence model information

Model code 178
USGS model code 27b
BC deposit profile E01
Deposit model name Almaden Hg

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
    Rock unit name Kuskokwim Group;Kuskokwim Group;Kuskokwim Group
    Rock description Kuskokwim Group;Kuskokwim Group;Kuskokwim Group

Nearby scientific data

(1) -157.87898, 61.86632

Comments on the geologic information

  • Geologic Description = Bedrock is sandstone and minor shale of the Kuskokwim Group; no igneous rocks were reported. Selected USBM samples of bedrock assayed almost 1% Hg. Fine-grained cinnabar was found in about 100 of approximately 350 auger holes, and in some of the drill core (Maloney, 1968). Maloney (1968) did not mention the presence of either veins or quartz.

Economic information

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Aniak

Comments on the reserve resource information

  • Reserves = Selected USBM samples yielded nearly 1% Hg.

Comments on the workings information

  • Workings / Exploration = USBM carried out an exploration program in 1966-67, which included bulldozer trenching, diamond drilling, and 350 auger holes.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A013427
USGS Alaska Resource Data File ARDF SM012

Bibliographic references

  • Deposit

    Maloney, R.P., 1968, Soil sampling at the Egnaty Creek mercury prospect, Kuskokwim River basin, Alaska: U.S. Bureau of Mines Open-File Report 16-68, 6 p.

  • Deposit

    Cobb, E.H., 1972, Metallic mineral resources map of the Sleetmute quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-368, scale 1:250,000.

  • Deposit

    Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Dillingham, Sleetmute, and Taylor Mountain quadrangles, Alaska: U.S. Geological Survey Open-File Report 76-606, 92 p.

  • Deposit

    Meyer, M.P., 1985, Mineral investigation of the Iditarod-George planning block, central Kuskokwim River area, Alaska: U.S. Bureau of Mines Open-File Report 9-85, 232 p., 4 sheets, scale 1:250,000.

  • Deposit

    Rytuba, J.J., 1986, Descriptive model of Almaden Hg, in Cox, D.P., and Singer, D.A., eds. Mineral Deposit Models: U.S. Geological Survey Bulletin 1693, p. 180.

  • Deposit

    Miller, M.L., Belkin, H.E., Blodgett, R.B., Bundtzen, T.K., Cady, J.W., Goldfarb, R.J., Gray, J.E., McGimsey, R.G., and Simpson, S.L., 1989, Pre-field study and mineral resource assessment of the Sleetmute quadrangle, southwestern Alaska: U.S. Geological Survey Open-File Report 89-363, 115 p., 3 plates, scale 1:250,000.

  • Deposit

    Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Dillingham, Sleetmute, and Taylor Mountains quadrangles, Alaska: U.S. Geological Survey Open-File Report 76-606, 92 p.

Comments on the references

  • Primary Reference = Maloney, 1968

General comments

Subject category Comment text
Deposit Model Name = Epithermal, disseminated, mercury

Reporter information

Type Date Name Affiliation Comment
Reporter 02-JUN-1994 Huber, D.F. U.S. Geological Survey
Reporter 02-JUN-1994 Niles, L.P. U.S. Geological Survey
Reporter 02-JUN-1994 Miller, M.L. U.S. Geological Survey