Alaska Oracle Mining Co.

Past Producer in Alaska, United States with commodities Gold, Copper, Lead, Zinc, Molybdenum

Geologic information

Identification information

Deposit ID 10000298
MRDS ID A010346
Record type Site
Current site name Alaska Oracle Mining Co.
Alternate or previous names Heaston Mine: Claims: Oracle No. 2, Oracle Extension
Related records 10185900

Geographic coordinates

Geographic coordinates: -148.50256, 60.49954 (WGS84)
Elevation 701
Location accuracy 10000(meters)
(click for info)

Geographic areas

Country State
United States Alaska

Comments on the location information

  • DEPOSIT NUMBER IS THE MAP LOCATION NUMBER FROM MF-880A.

Commodities

Commodity Importance
Gold Primary
Copper Tertiary
Lead Tertiary
Zinc Tertiary
Molybdenum Tertiary

Comments on the commodity information

  • SULFIDES MAKE ON UP 0.5% OF ORE

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Molybdenite Ore
Pyrrhotite Ore
Sphalerite Ore
Calcite Gangue
Quartz Gangue

Alteration

  • (Local) Vein Is Weathered To A Depth Of 50-75 Ft. Quartz Is Friable And Iron Stained There.

Analytical data

Result AVERAGE GOLD CONTENT ESTIMATED TO BE $40 TO $45 PER TON (1931 PRICES)

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Siltstone

Nearby scientific data

(1) -148.50256, 60.49954

Geologic structures

Type of structure Local
Structure description Cleavage In Country Rock: N 15 E 60 W To 80 E

Ore body information

  • Strike N 15 E
    Dip 60 W
    Thickness 0.91M
    Depth to bottom 33.53M
    Length 53.34M

Controls for ore emplacement

  • Vein Is Contained Within A Fault Zone

Comments on the geologic information

  • DIKE IS 1/4 MILE FROM SITE. NO IGNEOUS ROCKS ARE FOUND CLOSER. FAULT APPEARS TO HAVE MOVED BEFORE AND AFTER MINERALIZATION. MOVEMENT ALO N FAULT WAS HANGING WALL MOVING 20-45 SW RELATIVE TO FOOTWALL

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1921
Discoverer Robert B. Heaston
Discovery method Ore-Mineral In Place

Mining district

District name Hope District

Workings at the site

  • Type of workings Underground
    Length 457.2M
    Overall depth 33.53M
  • Type of workings Underground
    Name of workings CROSSCUTS
    Length 274.32M

Comments on the workings information

  • TWO LEVELS WITH 900 FT OF CROSSCUTS AND SEVERAL RAISES AS OF 1931.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A010346

Bibliographic references

  • Deposit

    USGS BULLETIN 849-I, P. 507-510.

  • Deposit

    USGS BULLETIN 926-C, P. 186.

  • Deposit

    USGS MISCELLANEOUS FIELD STUDIES 880-A, LOCATION 51

  • Deposit

    USGS OPEN FILE 80-621, P. 24

General comments

Subject category Comment text
Deposit QUARTZ VEIN IN SHEAR ZONE CONTAINS FREE GOLD AND AURIFEROUS SULFIDES. QUARTZ IN VEIN HAS SLICKENSIDES. SOUTHERN PART OF VEIN NOT FOLLOWED TO ITS END.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-84 Hirschmann, M. M. (Elliott, R. L.) U.S. Geological Survey PARSED DATA INTO WORKINGS MULTIVALUED FIELDS
Editor 13-APR-94 Mosier, Dan U.S. Geological Survey
Editor 30-MAY-95 Waller, Nichelle (Mosier, Dan) U.S. Geological Survey