Upper Crooked Creek

Occurrence 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. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Mining district
  11. Links to other databases
  12. Bibliographic references
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10001926
MRDS ID A012760
Record type Site
Current site name Upper Crooked Creek

Geographic coordinates

Geographic coordinates: -163.75331, 65.02933 (WGS84)
Relative position This occurrence is on the divide between the headwaters of Virginia Creek, Oxide Creek, Crooked Creek (BN102), and Albion Creek (BN103). It is very approximately located at an elevation of 900 feet; probably located within one mile. This is locality 12 of Cobb (1972; MF 417; 1975; OFR 75-429).

Site location context

Political divisions (FIPS codes)

Nome(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Bendeleben A-4(quadrangle 1:63,360 scale)

Bendeleben SE(quadrangle 1:100,000 scale)

Bendeleben C(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) Quartz veining and possibly disseminated pyrite is present in the metasedimentary host rocks.

Nearby scientific data

(1) -163.75331, 65.02933

Economic information

Comments on the geologic information

  • Geologic Description = A gold-bearing lode that consists of quartz veins containing up to 2 ounces Au per ton, occurs on the divide between Goldbottom and Crooked Creeks; it is reported to be near a marble-schist contact (Collier and others, 1908) and to be similar to an occurrence near the mouth of Crooked Creek (BN100; Smith and Eakin, 1911). The occurrence near the mouth of Crooked Creek is a 12-foot wide mineralized zone in schistose limestone (marble) that contains quartz veins and pyrite. Bedrock in the area of this occurrence is metasedimentary schist and marble of a lower Paleozoic assemblage (Till and others, 1986).
  • Age = Possibly mid-Cretaceous; if gold-bearing lode structures are present here they may be similar in age to some lode gold deposits 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.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Council

Comments on the workings information

  • Workings / Exploration = Some small surface prospecting pits are probably present.

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Collier and others, 1908

General comments

Subject category Comment text
Deposit Model Name = Gold-bearing quartz veins in schistose marble

Reporter information

Type Date Name Affiliation Comment
Reporter 15-MAR-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.