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  3. Mineral Resource Data System (MRDS)

London and Cape

Prospect in Alaska, United States with commodities Copper, Silver, Molybdenum
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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. Mineral occurrence model information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Economic information about the deposit and operations
  11. Mining district
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10001056
MRDS ID A011735
Record type Site
Current site name London and Cape
Related records 10209596

Geographic coordinates

Geographic coordinates: -143.71946, 61.5666 (WGS84)
Relative position West side of Trail Creek, a tributary to the Kuskulana River. Best Location: MacKevett and others, 1978, loc. 33. Accurate within radius of 100 feet.

Site location context

Political divisions (FIPS codes)

Valdez-Cordova(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

McCarthy C-8(quadrangle 1:63,360 scale)

McCarthy NW(quadrangle 1:100,000 scale)

McCarthy(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Chitina River(hydrologic unit)

Copper River(hydrologic accounting unit)

South Central Alaska(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Wrangell-St. Elias 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
Copper Primary
Silver Secondary
Molybdenum Secondary

Materials information

Materials Type of material
Chalcopyrite Ore

Mineral occurrence model information

Model code 79
USGS model code 21a
Deposit model name Porphyry Cu-Mo
Mark3 model number 2

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Chitina Valley Batholith;Chitina Valley Batholith
    Rock description Chitina Valley Batholith;Chitina Valley Batholith

Nearby scientific data

(1) -143.71946, 61.5666
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Pyrite-chalcopyrite veinlets and disseminations in locally altered Upper Jurassic granodiorite and quartz diorite that intrudes Mesozoic sedimentary rocks.
  • Age = Late Jurassic

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Chistochina

Comments on the workings information

  • Workings / Exploration = Old adit. Grab samples assay as much as 1.5 ppm Ag, 20,000 ppm Cu, and 70 ppm Mo; most samples contained about 1,000 ppm Cu. Underground workings.

Reference information

Bibliographic references

  • Deposit

    Moffit, F.H., and Mertie, J.B., Jr., 1923, The Kotsina-Kuskulana district, Alaska: U.S. Geological Survey Bulletin 745, 149 p.

  • Deposit

    MacKevett, E.M., Jr., 1976, Mineral deposits and occurrences in the McCarthy quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-773-B, scale 1:250,000.

  • Deposit

    MacKevett, E.M., Jr., Smith, J.G., Jones, D.L., and Winkler, G.R., 1978, Geologic map of the McCarthy C-8 quadrangle, Alaska: U.S. Geological Survey Geologic Quadrangle Map GQ-1418, scale 1:63,360.

  • Deposit

    MacKevett, E.M., Jr., Smith, J.G., Jones, D.L., and Winkler, G.R., 1978, Geologic map of the McCarthy C-8 quadrangle, Alaska: U.S. Geological Survey Geologic Quadrangle Map GQ-1418, 1 sheet, scale 1:63,360.

Comments on the references

  • Primary Reference = Moffit and Mertie, 1923

General comments

Subject category Comment text
Deposit Model Name = Porphyry Cu-Mo

Reporter information

Type Date Name Affiliation Comment
Reporter 11-JUL-1997 Leonard, K.R. U.S. Geological Survey
Reporter 11-JUL-1997 Elliott, R.L. U.S. Geological Survey
Reporter 11-JUL-1997 Nokleberg, W.J. U.S. Geological Survey
Reporter 11-JUL-1997 Richter, D.H. 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.