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  3. Mineral Resource Data System (MRDS)

Black Creek Occurrence

Occurrence in Alaska, United States with commodities Antimony, Mercury
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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. Ore body information
  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 10002615
MRDS ID A015052
Record type Site
Current site name Black Creek Occurrence

Geographic coordinates

Geographic coordinates: -157.93487, 62.44162 (WGS84)
Location accuracy 1000(meters)
Relative position 3 MILES ESE OF FLAT.

Site location context

Political divisions (FIPS codes)

Yukon-Koyukuk(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Iditarod B-4(quadrangle 1:63,360 scale)

Iditarod SW(quadrangle 1:100,000 scale)

Iditarod C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Alaska(hydrologic region)

Federal lands

Doyon, Limited(ANCSA Region)

ANCSA Region NTVPIC(Type of land area)

NTVPIC(Federal land areas administered by NTVPIC)

Geographic areas

Country State
United States Alaska

Comments on the location information

  • USGS MF-363, LOC. 9. 1/2 MILE SOUTH OF MOUTH OF BLACK CREEK. LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Commodities

Commodity Importance
Antimony Critical Primary
Mercury Secondary

Materials information

Materials Type of material
Cinnabar Ore
Stibnite Ore
Pyrite Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Stratigraphic age (youngest) Pliocene

Nearby scientific data

(1) -157.93487, 62.44162
ListMap

Economic information

Ore body information

  • Thickness 0.3M

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Iditarod

Comments on development

  • IN 1956 THE USBM DUG 12 BULLDOZER TRENCHES (SEE REF 3, P. 12) ON THE SLOPE OF THE RIDGE BETWEEN GLEN GULCH AND THE VALLEY OF BLACK CREEK. THE TRENCHES EXPOSED THE QUARTZ MONZONITE BEDROCK FOR 2,400 FT. NORTHWESTWARD FROM THE CONTACT ZONE. ONLY A FEW MINERALIZED STRINGERS WERE FOUND AND SAMPLED. NO SIGNIFICANT CINNABAR MINERALIZATION WAS FOUND IN PLACE. SOME VEINS AND VEINLETS SHOWED FAIR GOLD VALUES.

Reference information

Bibliographic references

  • Deposit

    USGS MF-363 (B-4), LOC. 9.

  • Deposit

    USGS BULL. 649, P. 48-49.

  • Deposit

    USBM REPT INV. 5991, P. 7-12.

  • Other Database

    BAG-MF-363-9A

General comments

Subject category Comment text
Deposit STIBNITE BEARING QUARTZ VEIN 2-12 INCHES THICK OCCUPIES FISSURE IN MONZONITE. STIBNITE DEPOSITED AFTER QUARTZ WITH MINOR CINNABAR AND PYRITE. STIBNITE OCCURS IN GRANULAR AGGREGATES THROUGH WHICH ARE SCATTERED GRAINS AND CRYSTALS OF VITREOUS QUARTZ; MOST ABUNDANT IN WIDEST PART OF VEIN.
Deposit THIS SITE NAME WAS CREATED BY THE REPORTER OR OTHER USGS EMPLOYEE BASED ON PROXIMITY TO SOME MAJOR GEOGRAPHIC FEATURE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1987 Powers, M.T. (Huber, D.F.) U.S. Geological Survey

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.