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  3. Mineral Resource Data System (MRDS)

Unnamed

Occurrence in Alaska, United States with commodity Gold
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Alteration
  8. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Economic information about the deposit and operations
  12. Mining district
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10003355
MRDS ID A106105
Record type Site
Current site name Unnamed

Geographic coordinates

Geographic coordinates: -163.28575, 54.86585 (WGS84)
Relative position Approximate location is given as 2 to 3 mi (3.2 to 5 km) southeast of site of village of Morzhovoi at headwaters of creek flowing north into Traders Cove. Anomaly no. 51 of Christie (1974) and no. 5 of MacKevett and Holloway (1977, p. 11).

Site location context

Political divisions (FIPS codes)

Aleutians East(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

False Pass D-4(quadrangle 1:63,360 scale)

False Pass(quadrangle 1:100,000 scale)

False Pass(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Cold Bay(hydrologic unit)

Aleutian Islands(hydrologic accounting unit)

Southwest(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Alaska Peninsula National Wildlife Refuge(National Wildlife Refuge)

National Wildlife Refuge FWS(Type of land area)

FWS(Federal land areas administered by FWS)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Pyrite Ore
Tourmaline Gangue

Alteration

  • (Local) Propylitic alteration is developed in the diorite as evidenced by the presence of chlorite and epidote. Hydrothermal feldspar and clay is mentioned as present within the color anomaly but not otherwise described.

Mineral occurrence model information

Model code 105
USGS model code 25a-d
Deposit model name Epithermal vein, generic
Mark3 model number 119

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Volcanic Breccia (Agglomerate)
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene

Nearby scientific data

(1) Qs
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Christie (1974) briefly examined an oval color anomaly (gossan) 8,000 by 6,000 ft (2.4 by 1.8 km) in size developed within volcanic and plutonic rocks. Pyrite is disseminated within discrete 50 to 200 ft (15 to 60 m) wide zones in bleached volcanic rocks at the outer margin of the gossan. Pyrite may be more pervasive in rocks underlying the drift covered valley floor, an area covering 1.2 by 0.9 km. A diorite pluton intrudes the volcanic rocks and the sulfide zone is localized within and adjacent to pluton. Minor amounts of sulfides are localized in fractures and quartz veins fill some fractures in a stockwork. Minor breccia is found in float and is characterized by tourmaline rosettes developed in proximity to pyrite grains.
  • Age = Miocene or younger

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Alaska Peninsula

Comments on the workings information

  • Workings / Exploration = Brief reconnaissance geologic mapping and a few silt samples collected by Christie (1974). Two of eight samples had 0.02 ppm gold; it does not appear occurrence is adequately examined for epithermal gold vein potential.

Reference information

Bibliographic references

  • Deposit

    Christie, J.S., 1974, Aleut-Quintana-Duval 1974 joint venture, final report: Unpublished Quintana Minerals Corporation report, 24 p., 3 appendices, 2 maps. (Report held by the Aleut Corporation, Anchorage, Alaska.)

  • Deposit

    MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous mineral deposits in the western part of southern Alaska: U.S. Geological Survey Open-File Report 77-169-F, 38 p., 1 sheet, scale 1:1,000,000.

Comments on the references

  • Primary Reference = Christie, 1974

General comments

Subject category Comment text
Deposit Model Name = Epithermal gold vein
Deposit Other Comments = Quartz veining is briefly mentioned which supports the potential for epithermal gold veins.

Reporter information

Type Date Name Affiliation Comment
Reporter 06-MAY-1994 G.D. DuBois U.S. Geological Survey
Reporter 06-MAY-1994 F.H. Wilson U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Maps centered on this site

Authoritative Alaska resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.