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Double Anchor

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

Identification information

Deposit ID 10282434
MRDS ID A010189
MAS/MILS ID 0021180018
Record type Site
Current site name Double Anchor
Alternate or previous names Freg, Goldborgh, & Davidson, Frank Blasher, Alaska State Mines Extension, Snowshoe
Related records 10000154

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -130.25736, 56.06227 (WGS84)
Elevation 1220
Location accuracy 500(meters)
(click for info)

Geographic areas

Country State
United States Alaska

Public Land Survey System information

Meridian Township Range Section Fraction State
Copper River 067 S 098 E 16 NWSENE Alaska

Commodities

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

Materials information

Materials Type of material
Chalcopyrite Unknown
Galena Unknown
Pyrite Unknown
Pyrrhotite Unknown
Sphalerite Unknown

Nearby scientific data

Ore Body (1) -130.25736, 56.06227
ListMap

Ore body information

  • Thickness 21M
    Depth to top 0M
    Width 1M
    Length 85M
    Area 10HA
    Field Value
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 TABULAR
    Type of Orebody #2 SHEAR ZONE
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control CONTACT ZONE
    Secondary Ore Control FRACTURING
    Degree of Wallrock Alter. UNKNOWN
    Type of Wallrock Alter. #1 UNKNOWN
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 0
    Min. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 10
    Date of Last Modification 830321

Economic information

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic
Significant No
Discovery year 1923

Mining district

District name Hyder District

Mineral rights holdings

Type of mineral rights Located Claim

Land status

Ownership category Federal

Ownership information

  • Type Owner
    Owner Hans A. Bunzel And Burger E. Williamson
    Year 1977

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
U.S. Bureau of Mines Minerals Availability System MAS 0021180018
USGS Mineral Resources Data System MRDS A010189 MAS references MRDS

Bibliographic references

  • Ownership

    ALASKA KARDEX 118-019

  • Ownership

    ALASKA KARDEX 118-020

  • Deposit

    B773d p. 91

  • Deposit

    MR191-2 p. 3

  • Deposit

    B807 pp. 98-99

  • Deposit

    MR191-4 p. 5

  • Deposit

    MF418

  • Deposit

    OF76-486 pp. 117-120

  • Deposit

    B1403 pp. 79-84

Comments on the references

  • KERNS,1949(USBM MINERALS MEMORANDUM)

General comments

Subject category Comment text
Deposit ORIGINALLY STAKED IN 1923;RESTAKED IN 1937 & IN 1958. CONSIDERED INACTIVE IN 1977. RESERVES BASED ON DATA FROM B1403. MINING WIDTH 3 FEET. CONSISTS OF A QUARTZ BRECCIA ZONE IN ARGILLITE & GRAYWACKE. QUARTZ & PYRITE OCCUR WITH SMALL AMOUNTS OF SPORADICALLY DISTRIBUTED GALENA,SPHALERITE & CHALCOPYRITE. ZONE EXPOSED ON THE E & W SIDES OF A STREAM. THE EAST ZONE OUTCROPS FOR ABOUT 295 FT.; WIDTH RANGES 1.2-3.5 FT. THE WEST ZONE HAS MINERALIZATION SIMILAR TO THAT FOUND IN THE EAST ZONE, BUT ASSAY VALUES ARE LOWER. WORKINGS COMPRISE 5 SHORT ADITS & SEVERAL SHALLOW OPEN CUTS.

Reporter information

Type Date Name Affiliation Comment
Reporter 12-FEB-88 Jr U.S. Bureau of Mines