Unnamed (near Post Creek)

Prospect in Alaska, United States with commodity Gold
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 10001820
MRDS ID A012633
Record type Site
Current site name Unnamed (near Post Creek)
Related records 10232882

Geographic coordinates

Geographic coordinates: -164.02024, 64.97043 (WGS84)
Relative position Post Creek is a small north tributary to the Niukluk River. The mouth of Post Creek is about 13 miles from Council. This is locality 11 of Cobb (1972, MF 445; 1978, OF 78-181) who shows this prospect to be on the south side of upper Post Creek in the northwest corner of the Solomon D-4 quadrangle. Gamble (1988, locality 89) shows this prospect to be located on the north side of the Niukluk River, 0.5 mile downstream of the mouth of Post Creek in the Solomon D-5 quadrangle. It is the location of Gamble (1988) that is used here.

Site location context

Political divisions (FIPS codes)

Nome(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Solomon D-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)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore
Quartz Gangue

Alteration

  • (Local) Silicification.

Mineral occurrence model information

Model code 273
USGS model code 36a
Deposit model name Low-sulfide Au-quartz vein
Mark3 model number 27

Nearby scientific data

(1) -164.02024, 64.97043

Economic information

Comments on the geologic information

  • Geologic Description = There is an early report of a gold-bearing, 8-foot-wide quartz vein localized at a schist/marble contact 0.5 mile southeast of Post Creek (Smith, 1907). Crushing and panning of the quartz indicated that it could contain as much as 1.7 ounces of gold per ton. Bedrock in the Post Creek drainage is mostly a pelitic schist of possible Cambrian or Precambrian age (Till and others, 1986). This quartz vein is probably the same age as some other gold-quartz veins of 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 = Cretaceous

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Council

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Smith, 1907

General comments

Subject category Comment text
Deposit Model Name = Gold-quartz vein in metamorphic rocks?; low sulfide-Au quartz vein (Cox and Singer, 1986; model 36a).

Reporter information

Type Date Name Affiliation Comment
Reporter 19-AUG-1999 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.