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Gold Hill, Su

Prospect in Alaska, United States with commodities Gold, Copper, 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. 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 10000727
MRDS ID A011366
Record type Site
Current site name Gold Hill, Su

Geographic coordinates

Geographic coordinates: -147.7397, 63.09962 (WGS84)
Relative position The Gold Hill (Su) prospect is at an elevation of about 4,800 feet, at the crest of the ridge northwest of the junction of Wickersham Creek and Butte Creek. The map site is near the north end of the boundary between secs. 15 and 16, T. 21 S., R. 1 W., of the Fairbanks Meridian. The location is accurate to within 1,000 feet. This is locality 8 of Smith and others (1975: OFR 69); locality B7 of Balen (1990: OFR 34-90).

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-2(quadrangle 1:63,360 scale)

Mount Hayes SW(quadrangle 1:100,000 scale)

Healy(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Susitna 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
Gold Primary
Copper Primary
Molybdenum Secondary

Materials information

Materials Type of material
Chalcopyrite Ore
Molybdenite Ore
Pyrite Ore
Quartz Gangue
Sericite Gangue

Alteration

  • (Local) Phyllic and propyllitic.

Mineral occurrence model information

Model code 78
USGS model code 20c
Deposit model name Porphyry Cu-Au
Mark3 model number 34

Nearby scientific data

(1) -147.7397, 63.09962
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = The area of this prospect is underlain by intensely deformed and metamorphosed Lower Cretaceous and Upper Jurassic flysch (Wilson and others, 1998), cut by altered Lower Tertiary to Upper Cretaceous(?) diorite and quartz monzonite (Smith and others, 1988). The deposit consists of widely-spaced zones of sulfide minerals disseminated in the metasedimentary and altered intrusive rocks, and of stockwork quartz veinlets that carry molybdenite, chalcopyrite, pyrite, and sericite. Samples containing as much as 0.39 ounce of gold per ton have been reported (Balen and others, 1991).
  • Age = Probably Late Cretaceous or younger.

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Probably inactive

Mining district

District name Valdez Creek

Comments on the workings information

  • Workings / Exploration = Exploration has included soil sampling and trenching over a broad area. At least 2 shallow drill holes totalling 220 feet, were completed in the 1970s. Since then, at least 30 holes have been drilled on the prospect (D.L. Stevens, oral communication, 1999). Geophysical exploration has included a regional aeromagnetic survey over the prospect and surrounding area, as well as ground magnetics, IP, and EM. Samples containing as much as 0.39 ounce of gold per ton have been reported (Balen and others, 1991).

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Balen and others, 1991

General comments

Subject category Comment text
Deposit Model Name = Porphyry Cu-Au (Cox and Singer, 1986; model 20c)

Reporter information

Type Date Name Affiliation Comment
Reporter 07-APR-2000 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.