Mayfield

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

Geologic information

Identification information

Deposit ID 10137235
MRDS ID A011443
MAS/MILS ID 0020860026
Record type Site
Current site name Mayfield
Alternate or previous names Charles Anderson & Delate Cook, J. W. Date, Lola M. Date, Golden Harvest 1-15, Anderson and King Glacier, J. E. Turner, Mayfield 1-5, James Finley, Alaska Mayfield Mines, Inc., Emil Helekal
Related records 10000798

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -146.81947, 61.15739 (WGS84)
Elevation 914
Location accuracy 100(meters)
(click for info)

Geographic areas

Country State
United States Alaska

Public Land Survey System information

Meridian Township Range Section Fraction State
Copper River 008 S 009 W 22 SWNWSE Alaska

Commodities

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

Nearby scientific data

Main Entrance (1) -146.81947, 61.15739

Ore body information

  • Strike N35W
    Dip 50E
    Width 1.1M
    Length 19.8M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 LENTICULAR
    Type of Orebody #2 REPLACEMENT
    Shape of Orebody #2 TABULAR
    Type of Orebody #3 DISSEMINATED
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control FAULTING
    Secondary Ore Control FOLDING
    Degree of Wallrock Alter. UNKNOWN
    Type of Wallrock Alter. #1 UNKNOWN
    Strike And Dip N35W
    Date of Last Modification 881017
  • Strike N25W
    Dip 50N
    Width 1.7M
    Length 60.1M
    Field Value
    MAS Matrix # 2
    MAS Column # 1
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 LENTICULAR
    Type of Orebody #2 REPLACEMENT
    Shape of Orebody #2 TABULAR
    Type of Orebody #3 DISSEMINATED
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control FAULTING
    Secondary Ore Control FOLDING
    Degree of Wallrock Alter. UNKNOWN
    Type of Wallrock Alter. #1 UNKNOWN
    Strike And Dip N25W
    Date of Last Modification 881017

Economic information

Economic information about the deposit and operations

Operation type Surface-Underground
Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mineral rights holdings

Type of mineral rights Located Claim

Land status

Ownership category Federal

Reserves and resources

  • Type In-situ
    Estimate year 1984
    Inferred 551mt ore
    Total resources 551mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 8.9699 g/mt Gold Major 1984
    Silver Ag 3.21 g/mt Silver Trace 1984
  • Type In-situ
    Estimate year 1984
    Inferred 104mt ore
    Total resources 104mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 1.97 g/mt Gold Major 1984

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
U.S. Bureau of Mines Minerals Availability System MAS 0020860026
USGS Mineral Resources Data System MRDS A011443 MAS references MRDS

Bibliographic references

  • Ownership

    ALASKA KARDEX 086-044

  • Deposit

    B520h p. 125

  • Deposit

    B542c p. 35

  • Deposit

    B622j pp. 153, 185-186

  • Deposit

    B642g p. 145

  • Deposit

    B692g p. 151

  • Deposit

    B824a p. 22

  • Deposit

    IR JCR 360901 pp. 7-8

  • Deposit

    PE86-7

  • Deposit

    B880A pp. 24-25

  • Deposit

    B897A p. 24

  • Deposit

    IR JCR 380811 p. 7

  • Deposit

    B910A p. 27

  • Deposit

    B917A p. 27

  • Deposit

    B926A p. 26

  • Deposit

    MIRL 27 p. 105

  • Deposit

    MF438

  • Deposit

    OF79-1241 167pp.

  • Deposit

    MR32

  • Deposit

    OF82-1029 33pp.

  • Deposit

    B1139 363pp.

  • Deposit

    MLA62-82 24pp

  • Deposit

    B1246 pp.66,68

  • Deposit

    OF77-169A

  • Deposit

    B813a pp.1-72

  • Deposit

    B836a pp. 1-83

  • Deposit

    BMOF69-73

  • Deposit

    OF80-892B

  • Deposit

    MLA5-84 218pp., (Locality V-67)

General comments

Subject category Comment text
Deposit CLAIMED 1912. ACTIVE CA. 1935, 1955 (KX 86-44). NO PRODUCTION RECORDS AVAILABLE. Workings consist of two adits. The lower adit has 102.7m. of workings and the upper adit has 45.7m. of workings.

Reporter information

Type Date Name Affiliation Comment
Reporter 17-OCT-1988 Mirl-Dwb U.S. Bureau of Mines