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Bunkhouse

Prospect in Alaska, United States with commodities Silver, Gold, Arsenic, Bismuth, Mercury, Antimony
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Warning: This record lacks important information: bibliographic references, which we consider necessary for a comprehensive report.
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. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10307513
Record type Site
Current site name Bunkhouse

Geographic coordinates

Geographic coordinates: -149.64183, 63.22258 (WGS84)
Relative position The Bunkhouse prospect is at an elevation of about 2,950 feet, on the northwest bank of Bryn Mawr Creek. The map site is in the SW1/4 of sec. 34, T. 19 S., R. 11 W., of the Fairbanks Meridian. The location is accurate to within 1,000 feet.

Site location context

Political divisions (FIPS codes)

Matanuska-Susitna(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Healy A-6(quadrangle 1:63,360 scale)

Healy S(quadrangle 1:100,000 scale)

Healy(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Chulitna River(hydrologic unit)

Susitna River(hydrologic accounting unit)

South Central Alaska(hydrologic subregion)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Silver Primary
Gold Primary
Arsenic Critical Secondary
Bismuth Critical Secondary
Mercury Secondary
Antimony Critical Secondary

Materials information

Materials Type of material
Arsenopyrite Ore
Marcasite Ore
Pyrite Ore
Quartz Gangue

Alteration

  • (Local) Zones adjacent to the veins are bleached and argillized.

Mineral occurrence model information

Model code 85
USGS model code 22c
Deposit model name Polymetallic veins
Mark3 model number 46
Model code 104
USGS model code 25a
Deposit model name Hot-spring Au-Ag
Mark3 model number 45

Nearby scientific data

(1) -149.64183, 63.22258
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = The Bunkhouse prospect is about 2,500 feet north-northeast of the Golden Zone (HE043). The country rocks at the prospect are Triassic redbed sedimentary rocks, cut by the Bryn Mawr fault. The deposit consists of fault-controlled quartz stockwork veins and pods containing pyrite, arsenopyrite, and marcasite(?). The country rocks adjacent to the veins are bleached and argillized (unpublished report by Addwest Minerals International Ltd., 1997). Zones of disseminated sulfides up to 15 feet thick in the altered country rock contain up to 0.2 ounce of gold per ton (unpublished drill hole data). The Bunkhouse (and Lupin, HE038) deposits contain less base metals and more silver, arsenic, antimony, mercury and bismuth than the other deposits at and near the Golden Zone mine. Their ore mineralogy suggests an epithermal depositional environment.
  • Age = the Bunkhouse deposit may postdate the Late Cretaceous - Early Tertiary deposit at the Golden Zone mine (HE043).

Economic information about the deposit and operations

Development status Prospect

Comments on exploration

  • Status = Active

Mining district

District name Valdez Creek

Comments on the workings information

  • Workings / Exploration = The Bunkhouse deposit was discovered by trenching and soil sampling. Five drill holes, totaling 2100 feet, have tested the prospect to a depth of 500 feet (unpublished report by Addwest Minerals International Ltd., 1997).

Reference information

Comments on the references

  • Primary Reference = unpublished report by Addwest Minerals International Ltd., 1997

General comments

Subject category Comment text
Deposit Model Name = Polymetallic vein or hot-spring Ag-Au (Cox and Singer, 1986; model 22c, 25a)
Deposit Model Number = 22c, 25a

Reporter information

Type Date Name Affiliation Comment
Reporter 07-APR-00 N. Van Wyck Stevens Exploration Management Corporation

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.