Regal

Past Producer in Alaska, United States with commodity Copper

Geologic information

Identification information

Deposit ID 10001042
MRDS ID A011720
Record type Site
Current site name Regal
Related records 10282566

Geographic coordinates

Geographic coordinates: -142.97443, 61.55467 (WGS84)
Relative position 1 mile south of Donoho Peak summit. Best location: MacKevett, 1972. Accurate within radius of 100 feet.
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary

Materials information

Materials Type of material
Bornite Ore
Chalcocite Ore
Malachite Ore

Alteration

  • (Local) Oxidation of Cu minerals.

Mineral occurrence model information

Model code 87
USGS model code 23
BC deposit profile D03
Deposit model name Basaltic Cu (BC name is Volcanic redbed Cu)
Mark3 model number 118

Host and associated rocks

  • Host or associated Associated
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone
    Stratigraphic age (youngest) Late Triassic
    Stratigraphic age (youngest) Late Triassic
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Chitistone Limestone;Nikolai Greenstone
    Rock description Chitistone Limestone;Nikolai Greenstone

Nearby scientific data

(1) -142.97443, 61.55467

Comments on the geologic information

  • Geologic Description = Chiefly malachite-rich coatings, veins and disseminations in basal part of Triassic Chitistone Limestone.

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Nizina

Comments on the workings information

  • Workings / Exploration = Developed by 3 inclines and other underground workings, only 760 ft of which were accessible in 1943. Also some prospect pits in nearby Nikolai Greenstone.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A011720
USGS Alaska Resource Data File ARDF MC073

Bibliographic references

  • Deposit

    Miller, D.J., 1946, Copper deposits of the Nizina district, Alaska: U.S. Geological Survey Bulletin 947F, p. 93-120.

  • Deposit

    MacKevett, E.M., Jr., and Radtke, A.S., 1966, Hydrothermal alteration near the Kennecott copper mines, Wrangell Mountains area, Alaska, A preliminary report, in Geological Survey Research 1966: U.S. Geological Survey Professional Paper 550B, p. B165-B168.

  • Deposit

    Berg, H.C., and Cobb, E.H., 1967, Metalliferous Lode Deposits of Alaska. U.S. Geological Survey Bulletin 1246, 254 p.

  • Deposit

    MacKevett, E.M., Jr., 1972, Geologic map of the McCarthy C-6 quadrangle, Alaska: U.S. Geological Survey Geologic Quadrangle Map GQ-979, scale 1:63,360.

  • Deposit

    MacKevett, E.M., Jr., 1976, Mineral deposits and occurrences in the McCarthy quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-773-B, scale 1:250,000.

Comments on the references

  • Primary Reference = Miller, 1946

General comments

Subject category Comment text
Deposit Model Name = Basaltic Cu

Reporter information

Type Date Name Affiliation Comment
Reporter 14-NOV-97 Leonard, K.R. U.S. Geological Survey
Reporter 14-NOV-97 Elliott, R.L. U.S. Geological Survey
Reporter 14-NOV-97 Richter, D.H. U.S. Geological Survey