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

Thunder Gulch

Past Producer in Yukon Territory*, Canada with commodity Gold
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Nearby scientific data
  7. Economic information about the deposit and operations
  8. Mining district
  9. Ownership information
  10. Links to other databases
  11. Bibliographic references
  12. General comments
  13. Reporter information

Geologic information

Identification information

Deposit ID 10099581
MRDS ID TC41290
Record type Site
Current site name Thunder Gulch

Geographic coordinates

Geographic coordinates: -135.25243, 63.89987 (WGS84)

Site location context

Political divisions (FIPS codes)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

Geographic areas

Country State
Canada Yukon Territory*

Comments on the location information

  • WESTERN SLOPE BETWEEN 2-09N AND 2-30N, BUT ARE MOST NUMEROUS BETWEEN 02-09N AND 02-14N.

Commodities

Commodity Importance
Gold Primary

Comments on the commodity information

  • 790-825 (AU)

Analytical data

Result 311 G AU

Nearby scientific data

(1) -135.25243, 63.89987
ListMap

Economic information

Comments on the geologic information

  • UP TO 10 M OF GLACIAL TILL OVERLIE 6 M OF PRE-GLACIAL GRAVEL; ARGENTIFEROUS GALENA IS ALSO PRESENT IN THE GRAVELS; AU IS ROUGH AND ABOUT 1/3 OF PRODUCTION WAS NUGGETS; GRAVEL MINED WAS 3-4 FT ABOVE BEDROCK; THE TOP 2-3 FT OF BEDROCK WAS MINED; GRAVELS ARE COARSE AND POORLY-SORTED; CONCENTRATE CONTAINS ABUNDANT SPECULAR HEMATITE, LESS JASPER, MAGNETITE, PYRITE, GARNET, GALENA, AND CERRUSITE AND A TRACE OF SCHEELITE.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Significant No

Mining district

District name Mayo

Ownership information

  • Type Owner-Operator
    Owner Bardusan Placers Ltd.

Comments on the production information

  • PRODUCTION RECORDED FOR 1964-1979 PRODUCTION.
  • PREPARED MICA AMOUNTED TO 6% OF 1.75 TONS OF MINE-RUN MICA.

Comments on the workings information

  • OPEN PIT

Reference information

Bibliographic references

  • Deposit

    DEBICKI, 1982, 1983; GREEN, 1965; FINDLAY, 1969; CRAIG AND LAPORTE, 1972.

  • Deposit

    ORRIS, G.J. AND BLISS, J.D., 1985, GEOLOGIC AND GRADE VOLUME DATA ON 330 GOLD PLACER DEPOSITS: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 85-213, 172 P.

  • Other Database

    CIMRI

  • Reserve-Resource

    ORRIS AND BLISS, 1985.

General comments

Subject category Comment text
Deposit PHLOGOPITE ZONES CONFORMABLE WITH GNEISSIC FOLIATION; INDIVIDUAL BODIES RANGED FROM A FEW POUNDS TO A TON OF MINE-RUN SHEETS UP TO 2 FT IN DIAMETER.
Deposit PLACER AREA IS IN A STEEP, NARROW CANYON 3.2 KM EAST OF KENS CITY; LARGEST NUGGET (1964) WAS 7.5 OZ.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1985 Orris, Greta J. (Bliss, James D.) U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

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