Unnamed (north of Big Hurrah Creek)

Prospect in Alaska, United States with commodities Gold, Antimony
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 10308321
Record type Site
Current site name Unnamed (north of Big Hurrah Creek)

Geographic coordinates

Geographic coordinates: -164.28127, 64.65331 (WGS84)
Relative position This prospect is on the north side of Big Hurrah Creek (SO022) about one mile upstream from its mouth. It is locality 3 of Asher (1969, DGGS R33).

Site location context

Political divisions (FIPS codes)

Nome(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Solomon C-5(quadrangle 1:63,360 scale)

Solomon NW(quadrangle 1:100,000 scale)

Solomon(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Nome(hydrologic unit)

Norton Sound(hydrologic accounting unit)

Northwest(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Solomon Native Corporation(ANCSA Village)

ANCSA Village NTVPIC(Type of land area)

NTVPIC(Federal land areas administered by NTVPIC)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary
Antimony Critical Primary

Materials information

Materials Type of material
Gold Ore
Stibnite Ore
Quartz Gangue

Alteration

  • (Local) Silicification.

Mineral occurrence model information

Model code 180
USGS model code 27d
Deposit model name Simple Sb (veins, pods, etc)
Model code 273
USGS model code 36a
Deposit model name Low-sulfide Au-quartz vein
Mark3 model number 27

Nearby scientific data

(1) -164.28127, 64.65331

Economic information

Comments on the geologic information

  • Geologic Description = A 10-foot-wide silicified and brecciated zone in very fine-grained graphitic schist contains disseminated sulfides, mostly pyrite. However, along the footwall side, stibnite is disseminated and forms blades to 3 inches long (Asher, 1969, DGGS R33). The zone strikes N 12 E and dips 44 W. A prospect trench upslope to the north has dump material with abundant stibnite. A sample across the 10-foot-wide silicified zone contained 0.07 ounces Au per ton (Asher, 1969, DGGS R33). The country rock is part of a lower Paleozoic metasedimentary assemblage that includes a distinctive black, very fine-grained, graphitic schist (Sainsbury and others, 1972, OFR 511; Till and others, 1986). These veins may be similar in age to some lode gold deposits on southern Seward Peninsula. The southern Seward Peninsula lode gold deposits formed as a result of mid-Cretaceous metamorphism (Apodoca, 1994; Ford, 1993, Ford and Snee, 1996; Goldfarb and others, 1997) that accompanied regional extension (Miller and Hudson, 1991) and crustal melting (Hudson, 1994). This higher temperature metamorphism was superimposed on high pressure/low temperature metamorphic rocks of the region.
  • Age = Mid-Cretaceous

Economic information about the deposit and operations

Development status Prospect

Comments on exploration

  • Status = Probably inactive

Mining district

District name Nome

Comments on the workings information

  • Workings / Exploration = The mineralization is exposed in outcrop. A prospect trench exposes some mineralization upslope to the north.

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Asher, 1969a

General comments

Subject category Comment text
Deposit Model Name = Gold-quartz vein; low sulfide-Au quartz vein (Cox and Singer, 1986; model 36a) or quartz-stibnite vein in graphitic schist; simple Sb deposits (Cox and Singer, 1986; model 27d).

Reporter information

Type Date Name Affiliation Comment
Reporter 19-AUG-99 Travis L. Hudson Applied Geology

Beyond USGS

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

Authoritative Alaska resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.