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Addison Powell Prospect

Occurrence in Alaska, United States with commodities Copper, Silver, Gold, Zinc
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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. Host and associated rocks
  8. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Mining district
  11. Workings at the site
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10000829
MRDS ID A011482
Record type Site
Current site name Addison Powell Prospect
Alternate or previous names Sulphide Gulch Occurrence
Related records 10136841

Geographic coordinates

Geographic coordinates: -146.1031, 61.00877 (WGS84)
Location accuracy 2000(meters)

Site location context

Political divisions (FIPS codes)

Valdez-Cordova(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

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

Valdez SW(quadrangle 1:100,000 scale)

Valdez(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Eastern Prince William Sound(hydrologic unit)

Prince William Sound(hydrologic accounting unit)

South Central Alaska(hydrologic subregion)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Comments on the location information

  • POSITION GIVEN IS TERMINUS OF SMALL GLACIER; MASSIVE AND DISSEMINATED SULFIDES OCCUR BOTH N AND S OF GLACIER TERMINUS; APPROXIMATED FROM USGS OFR 80-892B, LOC. 33 A, B

Commodities

Commodity Importance
Copper Primary
Silver Secondary
Gold Secondary
Zinc Critical Secondary

Comments on the commodity information

  • SOURCE OF AG AND AU IN ASSAY UNCERTAIN

Materials information

Materials Type of material
Chalcopyrite Ore
Sphalerite Ore

Analytical data

Result GRAB SAMPLE OF PYRITIZED SLATE WITH MINOR PYRRHOTITE AND CHALCOPYRITE CONTAINED LESS THAN 0.1% CU, TRACE AU AND 0.25 OZ/TON AG, ADGGS GR 15, P. 10

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metavolcanic Rock
    Rock unit name Valdez Group
    Rock description Valdez Group;Valdez Group

Nearby scientific data

(1) -146.1031, 61.00877
ListMap

Economic information

Comments on the geologic information

  • PROBABLE LARGE, LOW GRADE DEPOSIT

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Port Valdez

Workings at the site

  • Type of workings Surface/Underground
    Length 30.48M

Comments on the workings information

  • EXPLORED IN 1915 BY 150 FT OF OPEN CUTS AND 100 FT TUNNEL, PRESENTCONDITION UNKNOWN

Comments on development

  • RESTAKED IN 1915 AND DEVELOPMENT WORK DONE; USGS OFR 80-892B LISTSAPPARENT POST-1950 ACTIVITY AT THIS PROSPECT

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit STRATIFORM, IRON-STAINED LENSES AND DISSEMINATIONS OF PYRRHOTITE, PYRITE, CHALCOPYRITE, SPHALERITE; REPORTS BEFORE USGS OFR 80-892B LIST ONLY CHALCOPYRITE, MALACHITE AND MINOR AU
Deposit SOME CONFUSION EXISTS OVER THE EXACT LOCATION OF THE OLD ADDISON-POWELL PROSPECT; BEST RECORDS PLACE IT AT THE TERMINUS OF THE GLACIER IN THE W FORK OF SULPHIDE GULCH ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1985 Leonard, Kenneth R. (Elliott, R. L.) U.S. Geological Survey
Editor 14-APR-1994 Mosier, Dan U.S. Geological Survey PARSED OUT HOST ROCK AND ASSOCIATED ROCK TYPES, AGES, UNIT NAMES, AND UNIT AGES.
Editor 14-APR-1995 Waller, Nichelle (Mosier, Dan) U.S. Geological Survey PUT DIMENSION DATA INTO THE WORKINGS FIELDS FROM THE COMMENTS FIELD.

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.