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Unnamed (southeast of Merrill Pass)

Occurrence in Alaska, United States with commodities Silver, Molybdenum, Lead, Zinc
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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 10002181
MRDS ID A013078
Record type Site
Current site name Unnamed (southeast of Merrill Pass)

Geographic coordinates

Geographic coordinates: -153.2505, 61.14974 (WGS84)
Relative position This occurrence is on the west side of a south tributary valley to the upper Another River. It is about 3.8 miles southeast of Merrill Pass and 2.8 miles northwest of The Tusk. The map site is at an elevation of about 3,600 feet, in the NW1/4 section 7, T 12 N, R 22 W, of the Seward Meridian. This occurrence was included by Cobb and Reed (1981) under the name Another R. It is approximately located, perhaps within a mile.

Site location context

Political divisions (FIPS codes)

Kenai Peninsula(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Lime Hills A-1(quadrangle 1:63,360 scale)

Lime Hills SE(quadrangle 1:100,000 scale)

Lime Hills(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Redoubt-Trading Bays(hydrologic unit)

Western Cook Inlet(hydrologic accounting unit)

South Central Alaska(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Lake Clark National Park(National Park)

National Park NPS(Type of land area)

NPS(Federal land areas administered by NPS)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Silver Primary
Molybdenum Primary
Lead Primary
Zinc Critical Primary

Materials information

Materials Type of material
Galena Ore
Molybdenite Ore
Pyrite Ore
Sphalerite Ore
Quartz Gangue

Alteration

  • (Local) Silicification.

Mineral occurrence model information

Model code 80
USGS model code 21b
Deposit model name Porphyry Mo, low-F

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite

Nearby scientific data

(1) -153.2505, 61.14974
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Cobb and Reed (1981) reported that molybdenite- and pyrite-bearing quartz veins are present in Tertiary granitic rocks at this locality. Galena- and sphalerite-bearing veins are also present nearby. The veins are disseminated and appear to be associated with quartz monzonite and in adjacent fractured quartz diorite. Samples of veins contain as much as 3 ounces of silver per ton (Resource Associates of Alaska, unpublished data, 1976).
  • Age = Tertiary. Sulfide-bearing quartz veins crosscut Tertiary granitic rocks.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Redoubt

Comments on the workings information

  • Workings / Exploration = Reconnaissance sampling has been completed in this area.

Reference information

Bibliographic references

  • Deposit

    Resource Associates of Alaska, Inc., 1976, Geology and geochemistry of certain land within the Lake Clark National Park: Contract report for U.S. Bureau of Mines, 109 p.

  • Deposit

    Cobb, E.H., and Reed, B.L., 1981, Summaries of data on and lists of references to metallic and selected nonmetallic mineral occurrences in the Iliamna, Lake Clark, Lime Hills, and McGrath quadrangles, Alaska; Supplement to Open-File Report 76-485; Part A, Summaries to January 1, 1981: U.S. Geological Survey Open-File Report 81-1343-A, 25 p.

Comments on the references

  • Primary Reference = Cobb and Reed, 1981

General comments

Subject category Comment text
Deposit Model Name = Porphyry Mo, low-F? (Cox and Singer, 1986, model 21b)
Deposit Other Comments = This occurrence is within Lake Clark National Preserve.

Reporter information

Type Date Name Affiliation Comment
Reporter 10-JUN-2001 Travis L. Hudson Applied Geology
Reporter 10-JUN-2001 Travis L. Hudson Applied Geology

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.