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Mountain View Group-Gray Copper Vein

Occurrence in Alaska, United States with commodities Silver, Lead, Gold, Copper, Zinc, Tungsten, Molybdenum
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Geologic information

Identification information

Deposit ID 10001539
MRDS ID A012286
Record type Site
Current site name Mountain View Group-Gray Copper Vein
Alternate or previous names Mountain View Group, Fish Creek No. 2 Claim

Geographic coordinates

Geographic coordinates: -130.05342, 55.98921 (WGS84)
Location accuracy 500(meters)
Relative position DIVIDE BETWEEN SKOOKUM AND FISH CREEKS
(click for info)

Geographic areas

Country State
United States Alaska

Comments on the location information

  • APPROX. LOCATION OF SHAFT ON SURFACE EXPOSURE OF VEIN; SHOWN ON PL ATE 8, USGS BULL 1024-B LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Commodities

Commodity Importance
Silver Primary
Lead Primary
Gold Primary
Copper Secondary
Zinc Secondary
Tungsten Secondary
Molybdenum Tertiary

Comments on the commodity information

  • U PRESENT IN SEVERAL SULFIDE AND OXIDE MINERALS; MAX EU OF UNCONC. VEIN MATERIAL: .049%

Materials information

Materials Type of material
Chalcopyrite Ore
Freibergite Ore
Galena Ore
Gold Ore
Molybdenite Ore
Scheelite Ore
Silver Ore
Sphalerite Ore
Anglesite Gangue
Ankerite Gangue
Barite Gangue
Calcite Gangue
Chlorite Gangue
Covellite Gangue
Malachite Gangue
Marcasite Gangue
Pyrite Gangue
Pyrrhotite Gangue
Quartz Gangue
Sericite Gangue
Specularite Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Texas Creek Granodiorite; Granodiorite And Minor Quartz Diorite Cut By Aplite Dikes
    Rock description Texas Creek Granodiorite; Granodiorite And Minor Quartz Diorite Cut By Aplite Dikes
    Stratigraphic age (youngest) Late Jurassic
    Stratigraphic age (youngest) Early Jurassic
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite

Nearby scientific data

(1) -130.05342, 55.98921
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Comments on the geologic information

  • COUNTRY ROCK IS TEXAS CREEK GRANODIORITE INTRUDED INTO HAZELTON GR OUP (?) METASEDIMENTARY AND METAVOLCAINC ROCKS; BOTH FORMATIONS TRIASSIC TO JURASSIC IN AGE

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1917
Discoverer John Hovland

Mining district

District name Hyder

Comments on the reserve resource information

  • W RESERVES ESTIMATED BY USBM: 8000 TONS OF MATERIAL AVERAGING 0.4% WO3, USBM IC 7379, P. 69

Comments on the workings information

  • GRAY COPPER VEIN EXPLORED BY OPENCUTS, 50 FT SHAFT AND 60 FT DRIFT; LATER WAS INTERCEPTED BY DRIFT FROM SKOOKUM TUNNEL, WHICH ALSO UNDERCUT RUBY SILVER AND SKOOKUM VEINS; TOTAL UNDERGROUND WORKINGS ON MTN VIEW PROPERTY GREATER THAN 1100 M IN LENGTH, MOSTLY IN SKOOKUM TUNNEL; NUMEROUS PITS, ADITS AND TRENCHES IN AREA, MOST NOT RECOVERABLE.

Comments on development

  • 7 PATENTED AND 2 UNPATENTED CLAIMS DEVELOPED MAINLY BETWEEN 1920 AND 1928; INVESTIGATED IN 1944 BY USBM FOR W; SOME DD-HOLES SUNK BY USGS IN 1941-1943 INVESTIGATION; ABOUT 7200 LBS OF ORE SHIPPED FOR MILL TESTS PRIOR TO 1928.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A012286

Bibliographic references

  • Deposit

    USGS BULL 773, P. 74, 76-77

  • Deposit

    USGS BULL 807, P. 43, 63-67

  • Deposit

    USGS BULL 800, P. 317, 324, 327, 330, 358

  • Deposit

    USBM IC 7379, P. 42, 68-69

  • Deposit

    USBM RI 3944

  • Deposit

    USGS BULL 1024-B, P. 25-27, 30-32, 34-44

  • Deposit

    USGS BULL 1024-F, P. 123, 125-128, 137-138

  • Deposit

    USGS BULL 1058-A, P. 27-29

  • Deposit

    ALASKA DEPT. OF MINES AND MINERALS, REPORT FOR THE YEAR 1966, P. 63

  • Deposit

    USGS OFR 78-73B, P. 4, NO. 6

  • Other Database

    BAG-OFR-78-73B-06

General comments

Subject category Comment text
Deposit PRINCIPAL VEIN OF MOUNTAIN VIEW MINE; TRACED FOR ABOUT 480 FT ON SURFACE, 300-400 FT EXPOSED IN UNDERGROUND WORKINGS; ZONE 6-8 FT WIDE WITH 1.5-6 FT OF QUARTZ, AVE. 4 PT, SURROUNDING MINERALIZED BANDS AND HORSES OF COUNTRY ROCK; TWO TYPES OF ORE SHOOTS: 1. PYRITIC QUARTZ CONTAINING CHALCOPYRITE, GALENA AND TETRAHEDRITE; PYRITE IN LAYERS AND DISSEMINATIONS LOCALLY COMPRISING UP TO 50% OF VEIN MATERIAL; RELATIVELY LOW AG CONTENT; 2. QUARTZ-BARITE INTERBANDED WITH SEAMS AND DISSEMINATIONS OF PYRITE, PYRRHOTITE, SCHEELITE, CHALCOPYRITE, GALENA, SPHALERITE TETRADEDRITE, FREIBERGITE AND SOME NATIVE AU AND AG; HIGHER AG CONTENT THAN PYRITIC SHOOTS; MOLYBDENITE NOTED IN SAMPLES TAKEN FOR RADIOACTIVITY SURVEY
Deposit NOTE THAT SOME DATA LISTED PERTAINS TO THE MOUNTAIN VIEW PROPERTY IN GENERAL; FOR SITE-SPECIFIC DATA ON INDIVIDUAL VEINS, SEE ALSO: MOUNTAIN VIEW - "RUBY SILVER" VEIN, MTN VIEW - "SKOOKUM VEIN", AND MTN VIEW - "MARSH" VEIN ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-SEP-86 Leonard, Kenneth R. (Elliott, R. L.) U.S. Geological Survey