1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Unnamed (in western Candle Hills)

Occurrence in Alaska, United States with commodities Copper, Silver
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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 10307824
Record type Site
Current site name Unnamed (in western Candle Hills)

Geographic coordinates

Geographic coordinates: -155.86393, 62.86645 (WGS84)
Relative position This occurrence is located at the rim of a prominent spur in the western Candle Hills about 3 kilometers due west of Candle placer mine (MG002) at an elevation of 1,000 feet (304 m) in the NW1/4 sec. 16, T. 32 N., R. 35 W., of the Seward Meridian. The reporter investigated the site in 1978 (as ADGGS station no. 78BT364).

Site location context

Political divisions (FIPS codes)

Yukon-Koyukuk(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

McGrath D-6(quadrangle 1:63,360 scale)

McGrath NW(quadrangle 1:100,000 scale)

McGrath(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Stony River(hydrologic unit)

Upper Kuskokwim River(hydrologic accounting unit)

Southwest(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

MTNT, Limited(ANCSA Village)

ANCSA Village NTVPIC(Type of land area)

NTVPIC(Federal land areas administered by NTVPIC)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary
Silver Secondary

Materials information

Materials Type of material
Chalcopyrite Ore
Epidote Gangue
Quartz Gangue

Alteration

  • (Local) Epidote.

Mineral occurrence model information

Model code 85
USGS model code 22c
Deposit model name Polymetallic veins
Mark3 model number 46

Host and associated rocks

  • Host or associated Associated
    Rock type
    Rock unit name Candle
    Stratigraphic age (youngest) Late Cretaceous
    Chronological age 71

Nearby scientific data

(1) -155.86393, 62.86645
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = This occurrence consists of chalcopyrite blebs and disseminations in quartz-epidote veinlets hosted in a porphyritic, subaerial basalt radiometrically dated at 73 Ma (Bundtzen and Miller, 1997). The occurrence is limited to a small 5 meter by 6 meter outcrop surrounded by vegetation and talus. One grab sample contained 233 ppm copper and 0.9 grams/tonne silver (Bundtzen and Laird, 1983).
  • Age = Unknown; probably associated with 69-73Ma Candle volcanic-plutonic complex.
  • Age = Chronological age is for Candle volcanic-plutonic complex.

Economic information about the deposit and operations

Development status Occurrence

Comments on exploration

  • Status = Inactive

Mining district

District name McGrath

Comments on the workings information

  • Workings / Exploration = One grab sample contained 233 ppm copper and 0.9 grams/tonne silver (Bundtzen and Laird, 1983).

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Bundtzen and Laird, 1983

General comments

Subject category Comment text
Deposit Model Name = Polymetallic vein (Cox and Singer, 1986; model 22c).
Deposit Other Comments = Mineralization may be related to the Au-polymetallic prospect in the valley of Candle Creek (MG003).

Reporter information

Type Date Name Affiliation Comment
Reporter 25-NOV-98 T.K. Bundtzen Pacific Rim Geological Consulting

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.