Unnamed (flank of Dry Creek)

Prospect in Alaska, United States with commodities Silver, Lead, Zinc, Copper
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. Host and associated rocks
  10. Nearby scientific data
  11. Economic information about the deposit and operations
  12. Mining district
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10307552
Record type Site
Current site name Unnamed (flank of Dry Creek)

Geographic coordinates

Geographic coordinates: -147.46284, 63.92964 (WGS84)
Relative position This prospect is at an elevation of about 3,600 feet on the northwest side of Dry Creek, about 3.4 miles west-northwest of the junction of Red Mountain Creek. The map site is at about the center of sec. 25, T. 11 S., R. 1 E., of the Fairbanks Meridian. The location is accurate to within 0.5 mile.

Site location context

Political divisions (FIPS codes)

Southeast Fairbanks(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Healy D-1(quadrangle 1:63,360 scale)

Mount Hayes NW(quadrangle 1:100,000 scale)

Healy(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Silver Primary
Lead Primary
Zinc Critical Primary
Copper Secondary

Materials information

Materials Type of material
Galena Ore
Sphalerite Ore
Chlorite Gangue
Quartz Gangue
Sericite Gangue

Alteration

  • (Local) Footwall alteration zones containing chlorite and sericite.

Mineral occurrence model information

Model code 184
USGS model code 28a
Deposit model name Massive sulfide, kuroko
Mark3 model number 93

Host and associated rocks

  • Host or associated Host
    Rock type
    Stratigraphic age (youngest) Early Mississippian
    Stratigraphic age (oldest) Middle Devonian

Nearby scientific data

(1) -147.46284, 63.92964

Economic information

Comments on the geologic information

  • Geologic Description = The country rocks at this prospect are the Lower Mississippian to Middle Devonian Totatlanika Schist, composed predominantly of mafic and felsic metavolcanic and metavolcaniclastic rocks, pelitic schist, and minor marble (Wilson and others, 1998). The deposit consists of massive-sulfide lenses in schist (Cox and others, 1989). The lenses are mainly galena and sphalerite, accompanied by chlorite, quartz, and sericite. The schist in the footwall is altered to chlorite and sericite.
  • Age = Mineralization was probably syngenetic with the Lower Mississippian to Middle Devonian host rocks.

Economic information about the deposit and operations

Development status Prospect

Comments on exploration

  • Status = Active?

Mining district

District name Bonnifield

Comments on the workings information

  • Workings / Exploration = Surface exploration only.

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Cox and others, 1989

General comments

Subject category Comment text
Deposit Model Name = Kuroko massive sulfide (Cox and Singer, 1986; model 28a)
Deposit Other Comments = the deposit at this prospect is considered to be a satellite of the deposit at the Red Mountain prospect (HE122).

Reporter information

Type Date Name Affiliation Comment
Reporter 07-APR-00 N. Van Wyck Stevens Exploration Management Corporation

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.