Ramsey-Rutherford Mine

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

Geologic information

Identification information

Deposit ID 10100961
MRDS ID A011477
Record type Site
Current site name Ramsey-Rutherford Mine
Related records 10136900

Geographic coordinates

Geographic coordinates: -146.10061, 61.20016 (WGS84)
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Geographic areas

Country State
United States Alaska

Comments on the location information

  • LOCATION IS PLOTTED AS ADIT SYMBOL ON VALDEZ (A-6) QUADRANGLE; 1951, WITH LIMITED REVISIONS, 1980. LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Commodities

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

Comments on the commodity information

  • AG PRESENT IN ANALYSIS, PROBABLY ALLOYED WITH AU; PYRRHOTITE IS MOST ABUNDANT SULFIDE

Materials information

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

Analytical data

Result DATA FROM PICKTHORN M. S. THESIS, SAMPLE FROM MAIN VEIN, ADJACENT TO SHEAR: SEMIQUANTITATIVE SPECTROGRAPHIC
Result 15.0 PPM AG, 10.0 PPM AU, 30 PPM PB, ATOMIC ABSORPTION
Result 28.0 PPM AU, 170 PPM PB, 20 PPM ZN, SAMPLE 79BS011Y

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Siltstone
    Rock unit name Valdez Group
    Rock description Valdez Group;Valdez Group

Nearby scientific data

(1) -146.10061, 61.20016

Geologic structures

Type Description Terms
Regional Major Foliation Strikes E, Dips Moderately N, About Parallel To Bedding
Local Fault Cuts Off Vein At 50 Ft Level; Fault Strikes S 80 E, Dips 80 N; Vein Shattered By Post-Mineralization Movement

Ore body information

  • Strike S 30 TO 40 E
    Dip 80 E
    Width 1.83M

Controls for ore emplacement

  • Fracture Control; Ore Deposits In Fissure Veins In Faults Along Axesand Limbs Of Overturned Folds

Comments on the geologic information

  • VALDEZ GROUP GRAYWACKE AND ARGILLITE GENERALLY STRIKES E-W WITH MODERATE N DIP; ROCKS HAVE BEEN FOLDED INTO COMPRESSED E-W TRENDING FOLDS,OVERTURNED TOWARD THE S, THAT HAVE AXES WHICH PLUNGE GENTLY WESTWARD; THESE FOLDS HAVE BEEN FAULTED AND CUT BY MINERALIZED QUARTZ VEINS THAT ARE GENETICALLY RELATED TO THE WANING STAGES OF GREENSCHIST METAMORPHISM OF VALDEZ GROUP ROCKS. GRAYWACKE INTERBEDDED WITH MINOR ARGILLITE.

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1911
Year of first production 1914
Year of last production 1935

Mining district

District name Port Valdez

Land status

Ownership category State

Comments on the production information

  • MINED INTERMITTENTLY BETWEEN ABOUT 1914-1917 AND BETWEEN 1921-1935;AMOUNT OF PRODUCTION UNKNOWN

Workings at the site

  • Type of workings Underground
    Length 457.2M

Comments on the workings information

  • EXTENSIVE UNDERGROUND WORKINGS PROBABLY TOTALED MORE THAN 1500 FT BY 1915; WAS MILL ON SITE; CURRENT CONDITIONS UNKNOWN

Comments on development

  • LOCATED 1911; DEVELOPMENT BEGAN 1912; SECOND LARGEST AU PRODUCER IN PRINCE WILLIAM SOUND REGION 1915-1917; LARGEST AU PRODUCER 1924

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A011477

Bibliographic references

  • Deposit

    USGS BULL 622, P. 45, 153, 159-161

  • Deposit

    USGS BULL 783, P. 8

  • Deposit

    USGS BULL 880-A, P. 22, 24

  • Deposit

    USGS BULL 1246, P. 72

  • Deposit

    USGS MF-438, LOC. 36

  • Deposit

    PICKTHORN, WILLIAM, 1982, STABLE ISOTOPE AND FLUID INCLUSION STUDY OF THE PORT VALDEZ GOLD DISTRICT, S. AK: LOS ANGELES, CA, UCLA MASTER'S THESIS, 59 P.

  • Deposit

    USGS OFR 80-892B, LOC. 28

  • Other Database

    BAG-OFR-80-892B-28

General comments

Subject category Comment text
Deposit ONE OF THE MAJOR AU PRODUCERS OF PRINCE WILLIAM SOUND; SEE ALSO: CLIFF MINE ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT
Deposit QUARTZ VEINS CARRIED AU, CALCITE, PYRRHOTITE, PYRITE, CHALCOPYRITE, SPHALERITE AND GALENA IN DISCONTINUOUS BUNCHES; VEINS CONTAIN HORSES OF CRUSHED COUNTRY ROCK; VEINS UP TO 6 FT WIDE, AVE. 2.5 TO 3 FT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1985 Leonard, Kenneth R. (Elliott, R. L.) U.S. Geological Survey
Editor 14-APR-1994 Mosier, Dan U.S. Geological Survey PARSED OUT HOST ROCK AND ASSOCIATED ROCK TYPES, AGES, UNIT NAMES, AND UNIT AGES.
Editor 14-APR-1995 Waller, Nichelle (Mosier, Dan) U.S. Geological Survey PUT DIMENSION DATA INTO THE ORE BODY FIELDS FROM THE DEPOSIT COMMENTS FIELD.