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Pirate Creek

Prospect in Alaska, United States with commodities Silver, Gold, Antimony
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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. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Mining district
  11. Links to other databases
  12. Bibliographic references
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10307511
Record type Site
Current site name Pirate Creek

Geographic coordinates

Geographic coordinates: -149.62283, 63.23958 (WGS84)
Relative position The Pirate Creek prospect is on the south bank of the West Fork Chulitna River, about a mile upstream from the junction of Bryn Mawr Creek. The map site is at the west edge of sec. 26, T. 19 S., R. 11 W., of the Fairbanks Meridian. The location is accurate to within half a mile. Also see Additional comments.

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
Antimony Critical Secondary

Materials information

Materials Type of material
Arsenopyrite Ore
Stibnite Ore
Quartz Gangue

Mineral occurrence model information

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

Nearby scientific data

(1) -149.62283, 63.23958
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = The country rocks at the Pirate Creek prospect are Permo-Triassic argillite and graywacke. The deposit consists of quartz veins containing arsenopyrite and stibnite. The veins contain up to 0.03 ounce of gold per ton as determined from trench samples. The veins are subparallel, and adjacent to a northeast-trending splay of the Zigzag Creek fault, suggesting a genetic relationship (unpublished report by Addwest Minerals International Ltd., 1997). The Pirate Creek deposit contains stibnite, which distinguishes it from other deposits in the area.
  • Age = Probably Late Cretaceous (70 - 65 Ma) or younger (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 = Surface workings only.

Reference information

Bibliographic references

  • Deposit

    Unpublished report by Addwest Minerals International Ltd., 1997.

Comments on the references

  • Primary Reference = Unpublished report by Addwest Minerals International Ltd., 1997

General comments

Subject category Comment text
Deposit Model Name = Polymetallic veins (Cox and Singer, 1986; model 22c)
Deposit Other Comments = the Pirate Creek claims group may overlap with either, or both, the Flaurier (HE036) and Jumbo (HE034) prospects.

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.