Butte

Occurrence in Alaska, United States with commodities Silver, Gold, Lead, Tungsten

Geologic information

Identification information

Deposit ID 10000195
MRDS ID A010231
Record type Site
Current site name Butte
Alternate or previous names Brigadier, Hyder Butte

Geographic coordinates

Geographic coordinates: -130.06869, 56.01644 (WGS84)
Relative position SEE LOCATION COMMENTS
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Geographic areas

Country State
United States Alaska

Comments on the location information

  • THE BRIGADIER PROSPECT IS IN SECTION 35 NEAR ITS WESTERN BOUNDARY AT AN ELEVATION OF ABOUT 650 FEET ON A WEST-FACING MOUNTAINSIDE OVERLOOKING THE SALMON RIVER ABOUT 0.7 MILE BELOW ITS CONFLUENCE WITH TEXAS CREEK. IT IS ABOUT 0.1 MILE EAST OF THE SALMON RIVER ROAD (ELLIOTT AND KOCH, 1981, P. 18, LOC. 73). THE LOCATION IS ACCURATE WITHIN ABOUT 0.2 MILE. ALSO SEE ADDITIONAL COMMENTS FIELD, BELOW.

Commodities

Commodity Importance
Silver Primary
Gold Primary
Lead Primary
Tungsten Primary

Materials information

Materials Type of material
Galena Ore
Scheelite Ore
Pyrite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Texas Creek
    Rock description Texas Creek
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite

Nearby scientific data

(1) -130.06869, 56.01644

Comments on the geologic information

  • MAAS AND OTHERS (1995, P. 254) SUGGEST THAT THE AGE OF THE BRIGADIER DEPOSIT IS EOCENE, BASED ON SIMILARITIES IN MINERALOGY, STRUCTURAL SETTING, AND HOSTROCK, TO ISOTOPICALLY DATED EOCENE DEPOSITS IN THE HYDER DISTRICT (SEE, FOR EXAMPLE, BC086). IF SO, THE AGE OF THE DEPOSIT IS CONTEMPORANEOUS WITH EMPLACEMENT OF THE HYDER QUARTZ MONZONITE.

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Comments on exploration

  • Status = Inactive

Mining district

District name Hyder

Comments on the workings information

  • PROSPECT WAS EXPLORED BY OPENCUTS AND A 25-FOOT SHAFT, PROBABLY IN THE EARLY 1920'S. EARLY ASSAYS OF TWO SAMPLES OF SULFIDE-BEARING QUARTZ VEINS SHOWED 11.4-14.1% PB, AND 0.24-0.6 OZ AU AND 10.2-20.6 OZ AG PER TON.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A010231
USGS Alaska Resource Data File ARDF BC073
USGS Mineral Resources Data System MRDS D002762

Bibliographic references

  • Deposit

    Buddington, A.F., 1929, Geology of Hyder and vicinity, southeastern Alaska, with a reconnaissance of Chickamin River: U.S. Geological Survey Bulletin 807, 124 p."

  • Deposit

    Byers, F. M., and Sainsbury, C. L., 1956, Tungsten deposits of the Hyder district, Alaska: U.S. Geological Survey Bulletin 1024-F, p. 123-140."

  • Deposit

    Smith, J.G., 1977, Geology of the Ketchikan D1 and Bradfield Canal A-1 quadrangles, southeastern Alaska: U.S. Geological Survey Bulletin 1425, 49 p.

  • Deposit

    Cobb, E. H., 1978, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Bradfield Canal quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-922, 98 p."

  • Deposit

    Elliott, R.L., and Koch, R. D., 1981, Mines, prospects, and selected metalliferous mineral occurrences in the Bradfield Canal quadrangle, Alaska: U.S. Geological Survey Open-File Report 81-728-B, 23 p., 1 sheet, scales 1:250,000 and 1:63,360.

  • Deposit

    Maas, K. M., Bittenbender, P. E., and Still, J. C., 1995, Mineral investigations in the Ketchikan mining district, southeastern Alaska: U. S. Bureau of Mines Open-File Report 11-95, 606 p.

  • Deposit

    Koch, R. D., 1996, Reconnaissance geologic map of the Bradfield Canal quadrangle, southeastern Alaska: U.S. Geological Survey Open-File Report 81-728A, 35 p.,1 sheet, scale 1:250,000.

General comments

Subject category Comment text
Deposit THE COUNTRY ROCK IN THE AREA OF THIS PROSPECT IS THE TRIASSIC TEXAS CREEK GRANODIORITE, WHICH UNDERLIES AND LOCALLY INTRUDES PELITIC METASEDIMENTARY AND SUBORDINATE ANDESITIC (GREENSTONE) METAVOLCANIC STRATA OF THE JURASSIC OR OLDER MESOZOIC HAZELTON GROUP; AND THE EOCENE HYDER QUARTZ MONZONITE, WHICH INTRUDES THE HAZELTON AND TEXAS CREEK ROCKS (SMITH, 1977, KOCH, 1996). THE DEPOSIT (BUDDINGTON, 1929, P. 81) CONSISTS OF QUARTZ FISSURE VEINS IN GRANODIORITE THAT CONTAIN GALENA AND PYRITE. THERE ARE TWO MAIN VEINS, EACH 10 INCHES TO 3 FEET THICK, THAT HAVE BEEN TRACED IN OUTCROP FOR 400-500 FEET. EARLY ASSAYS OF TWO SAMPLES SHOWED 11.4-14.1% PB, AND 0.24-0.6 OZ AU AND 10.2-20.6 OZ AG PER TON. BYERS AND SAINSBURY (1956, P. 140) REPORT THAT THE VEINS ALSO CONTAIN RARE GRAINS OF SCHEELITE. MAAS AND OTHERS (1995, P. 254) SUGGEST THAT THE AGE OF THE BRIGADIER DEPOSIT IS EOCENE, BASED ON SIMILARITIES IN MINERALOGY, STRUCTURAL SETTING, AND HOSTROCK, TO ISOTOPICALLY DATED EOCENE
Deposit DEPOSITS IN THE HYDER DISTRICT (SEE, FOR EXAMPLE, BC086). IF SO, THE AGE OF THE DEPOSIT IS CONTEMPORANEOUS WITH EMPLACEMENT OF THE HYDER QUARTZ MONZONITE.
Deposit THE PROSPECT PROBABLY WAS ORIGINALLY STAKED IN THE EARLY 1920'S. EARLY REPORTS DESCRIBING THE BRIGADIER PROPERTY ALSO REFER TO THE BUTTE (BUDDINGTON, 1929, P. 81) AND HYDER BUTTE (COBB, 1978, P. 13, 92) CLAIMS.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1983 Hirschmann, M. M. (Elliott, R. L.) U.S. Geological Survey
Updater 01-MAY-1998 Berg, H. C. U.S. Geological Survey