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Bibban

Prospect in Alaska, United States with commodity Copper
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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. Mineral occurrence model information
  8. Host and associated rocks
  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 10001389
MRDS ID A012131
Record type Site
Current site name Bibban
Alternate or previous names Bibbon

Geographic coordinates

Geographic coordinates: -148.73335, 67.87974 (WGS84)
Relative position This site is at an elevation of about 4,800 feet, approximately 3 1/2 miles northwest of the junction of Thru Creek and the North Fork Chandalar River (SW1/4 sec. 5, T. 35 N., R. 5 W., of the Fairbanks Meridian); the location is accurate within a 1/2-mile radius.

Site location context

Political divisions (FIPS codes)

Yukon-Koyukuk(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Chandalar D-4(quadrangle 1:63,360 scale)

Chandalar N(quadrangle 1:100,000 scale)

Chandalar C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Malachite Ore
Pyrite Ore
Pyrrhotite Ore
Quartz Gangue

Mineral occurrence model information

Model code 60
USGS model code 18c
Deposit model name Skarn Zn-Pb
Mark3 model number 22

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Skajit Limestone
    Rock description Skajit Limestone
    Stratigraphic age (youngest) Late Devonian

Nearby scientific data

(1) -148.73335, 67.87974
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = The limited information about this prospect describes it as malachite and chalcopyrite in quartz veinlets in the Silurian and Devonian Skajit Limestone near its contact with the Upper Devonian Hunt Fork Shale (Grybeck, 1977; Brosgi and Reiser, 1964). The prospect is close to the Bob (CH089) and Gayle (CH091) prospects, which Newberry and others (1997) classified as calcic Zn-Pb skarns and replacement bodies. The location, mineralogy, and geologic setting of the Bibban prospect suggest that it may be related to these Zn-Pb skarns or to Cu-Ag skarns that are also in the area.
  • Age = Devonian based on reported Early Devonian Pb/Pb zircon ages from the associated Baby Creek batholith and Horace Mountain plutons (Dillon and others, 1996).

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Chandalar

Comments on the workings information

  • Workings / Exploration = Claims were staked in 1972 and 1976.

Reference information

Bibliographic references

  • Deposit

    Grybeck, D.J., 1977, Known mineral deposits of the Brooks Range, Alaska: US Geological Survey Open-File Report 77-166C, 41 p., 1 sheet, scale 1:1,000,000.

  • Deposit

    DeYoung, J.H., Jr., 1978, Mineral resources map of the Chandalar quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-878-B, 2 sheets, scale 1:250,000.

  • Deposit

    Schmidt, J.M., 1997, Shale-hosted Zn-Pb-Ag and barite deposits of Alaska, in Goldfarb, R.J., and Miller, L.D., eds., Mineral Deposits of Alaska, 1997: Economic Geology Monograph 9, p. 35-65.

Comments on the references

  • Primary Reference = DeYoung, 1978

General comments

Subject category Comment text
Deposit Model Name = Zn-Pb skarn deposits(?) (Cox and Singer, 1986; model 18c)
Deposit Other Comments = Alaska Kardex No. 031-61B (Kardex is a card file mining claim information system located at the State of Alaska DNR Public Information Center in Fairbanks).

Reporter information

Type Date Name Affiliation Comment
Reporter 17-NOV-1999 J.M. Britton 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.