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Booshu Camp

Prospect in Alaska, United States with commodity Molybdenum
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Geologic information

Identification information

Deposit ID 10003122
MRDS ID A015655
Record type Site
Current site name Booshu Camp
Related records 10137094

Geographic coordinates

Geographic coordinates: -171.82626, 63.45717 (WGS84)
Relative position The Booshu Camp site is located on a wave cut platform 1/2 mile south of the mouth of the Moghoweyik River, on the west coast of St. Lawrence Island. Mineralization here is exposed along the beach and for 150 feet inland across the wave cut bench. This site is located within 1/4 mile; it is locality 3 of Cobb (1972) and Cobb (1980) summarized relevant references under the name 'Booshu Camp'.
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Molybdenum Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Molybdenite Ore
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Alteration is restricted to small amounts of quartz (at least some in veins) and partial sericitization of feldspars (Patton and Csejtey, 1971, p. C8 and C10).

Mineral occurrence model information

Model code 80
USGS model code 21b
Deposit model name Porphyry Mo, low-F

Host and associated rocks

  • Host or associated Host
    Chronological age 108
    Uncertainty 3.2
    Stratigraphic age (youngest) Early Cretaceous

Nearby scientific data

(1) -171.82626, 63.45717
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Comments on the geologic information

  • Geologic Description = Molybdenite mineralization here is in the Sevuokuk pluton, a mid-Cretaceous (108 +/- 3.2 Ma) composite body that includes biotite hornblende quartz monzonite and biotite quartz monzonite phases (Csejtey, Patton, and Miller, 1971; Patton and Csejtey, 1980). At this site, molybdenite occurs as disseminations and as scaly fracture and joint coatings (Anderson, 1947, p. 35-36) in biotite quartz monzonite. Small amounts of chalcopyrite and pyrite locally accompany the molybdenite. The mineralization appears to be concentrated in a zone along the shoreline between major joints. Results of channel sampling here included (1) 3 feet of 0.71 % MoS2, (2) 6 feet of 0.28 % MoS2, and (3) 15 feet of 0.17 % MoS2 (Anderson, 1947, p. 36). Three grab samples of mineralized quartz monzonite contained 150, 700, and 1,000 ppm molybdenum and 300, 10, and 30 ppm copper respectively (Patton and Csejtey, 1971, p. C8). Alteration is restricted to small amounts of quartz (at least some in veins) and partial sericitization of feldspars (Patton and Csejtey, 1971, p. C8 and C10).
  • Age = Mid-Cretaceous, the age of the host Sevuokuk pluton (108 +/- 3.2 Ma; Patton and Csejtey, 1980).
  • Age = Chron age is for Host Rock.

Economic information

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Bering Sea

Comments on the workings information

  • Workings / Exploration = Results of channel sampling here included (1) 3 feet of 0.71 % MoS2, (2) 6 feet of 0.28 % MoS2, and (3) 15 feet of 0.17 % MoS2 (Anderson, 1947, p. 36). Three grab samples of mineralized quartz monzonite contained 150, 700, and 1,000 ppm molybdenum and 300, 10, and 30 ppm copper respectively (Patton and Csejtey, 1971, p. C8).

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A015655
Unknown MF MF 465-3
USGS Alaska Resource Data File ARDF SL004

Bibliographic references

  • Deposit

    Anderson, Eskil, 1947, Mineral occurrences other than gold deposits in northwestern Alaska: Alaska Territorial Division of Mines Pamphlet 5-R, 48 p.

  • Deposit

    Patton, W.W., Jr., and Csejtey, Bela, Jr., 1971, Preliminary geologic investigations of western St. Lawrence Island, Alaska: U.S. Geological Survey Professional Paper 684-C, p. C1-C15.

  • Deposit

    Csejtey, Bela, Jr., Patton, W.W., Jr., and Miller, T.P., 1971, Cretaceous plutonic rocks of St. Lawrence Island, Alaska, a preliminary report: U.S. Geological Survey Professional Paper 750-D, p. D68-D76.

  • Deposit

    Patton, W.W., Jr., and Csejtey, Bela, Jr., 1980, Geologic map of St. Lawrence Island, Alaska: U.S. Geological Survey Miscellaneous Investigation Series Map I-1203, scale 1:250,000.

  • Deposit

    Cobb, E.H., 1980, Summaries of data and lists of references to metallic and selected nonmetallic mineral deposits in fifteen quadrangles in southwestern and west-central Alaska: U.S. Geological Survey Open-File Report 80-909, 103 p.

  • Deposit

    Cobb, E.H., 1972, Metallic mineral resources map of the Saint Lawrence quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-465, 1 sheet, scale 1:250,000.

Comments on the references

  • Primary Reference = Patton and Csejtey, 1971 (PP 684-C)

General comments

Subject category Comment text
Deposit Model Name = Fracture fillings and disseminations of molybdenite in granitic rock. Deposit model 21b (?); porphyry Mo, low-F
Deposit Other Comments = Locality 6 (West Cape) of Cobb (1972) should be deleted (Cobb, 1980, p. 51) as the cited reference information (Anderson, 1947, p. 35-36) is for the Booshu Camp site and not West Cape.

Reporter information

Type Date Name Affiliation Comment
Reporter 10-SEP-1998 Travis L. Hudson Applied Geology