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  3. Mineral Resource Data System (MRDS)

Unnamed ( on hill 1677)

Occurrence in Alaska, United States with commodities Copper, Silver, Lead
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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. 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 10307894
Record type Site
Current site name Unnamed ( on hill 1677)

Geographic coordinates

Geographic coordinates: -157.83311, 64.20944 (WGS84)
Relative position This occurrence is on hill 1677 in the southern Kaiyuh Mountains, approximately 4.5 kilometers north-northeast of the top of Khotol Mountain. The location is accurate within 1.5 kilometers.

Site location context

Political divisions (FIPS codes)

Yukon-Koyukuk(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Nulato A-4(quadrangle 1:63,360 scale)

Nulato SE(quadrangle 1:100,000 scale)

Nulato C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary
Silver Secondary
Lead Secondary

Materials information

Materials Type of material
Chalcopyrite Ore
Pyrite Ore

Alteration

  • (Local) Hornfels and skarn (?) are present at this occurrence.

Mineral occurrence model information

Model code 59
USGS model code 18b
Deposit model name Skarn Cu
Mark3 model number 8

Nearby scientific data

(1) -157.83311, 64.20944
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = This occurrence is in garnet-quartz-chlorite-muscovite schist and consists of sparse gossan float, disseminated pyrite in the schist, and chalcopyrite in siliceous hornfels (skarn?). Six rock samples contained up to 1510 ppm copper, 85 ppm lead, 1.1 ppm silver, and 210 ppm arsenic (Flanigan, 1998). Flanigan interprets the Aladdin deposit to be related to magmatic fluids from the Khotol pluton, based on its proximity to the pluton and its low molybdenum content . K-Ar and Ar/Ar dates for the Khotol pluton are approximately 110 Ma (Flanigan, 1998). Also see NL012-014, 016, and 019-022.
  • Age = Flanigan (1998) interprets the Aladdin deposit to be related to magmatic fluids from the Khotol pluton, based on its proximity to the pluton and its low molybdenum content . K-Ar and Ar/Ar dates for the Khotol pluton are approximately 110 Ma (Flanigan, 1998).

Economic information about the deposit and operations

Development status Occurrence

Comments on exploration

  • Status = Probably inactive

Mining district

District name Kaiyuh

Comments on the workings information

  • Workings / Exploration = This occurrence was discovered by Anaconda Minerals Company in 1980 or 1982 (Flanigan, 1998).

Reference information

Bibliographic references

  • Deposit

    Flanigan, B., 1998, Genesis and mineralization of ore deposits in the Illinois Creek region, West Central Alaska: University of Alaska, Fairbanks, M.Sc. thesis, 125 p., 2 plates.

Comments on the references

  • Primary Reference = Flanigan, 1998

General comments

Subject category Comment text
Deposit Model Name = Cu-Au skarn? (Cox and Singer, 1986; model 18b)

Reporter information

Type Date Name Affiliation Comment
Reporter 07-AUG-01 Cameron, C.E. Northern Associates Inc.

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.