Sealy-Davis Mine

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

Geologic information

Identification information

Deposit ID 10000807
MRDS ID A011456
Record type Site
Current site name Sealy-Davis Mine
Alternate or previous names Gold Bluff
Related records 10234243

Geographic coordinates

Geographic coordinates: -146.57034, 61.13126 (WGS84)
Location accuracy 2000(meters)
(click for info)

Geographic areas

Country State
United States Alaska

Comments on the location information

  • POSITION APPROXIMATED USING USGS OFR 80-892B, LOC. 12. 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
Copper Tertiary
Lead Tertiary
Zinc Tertiary

Materials information

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

Analytical data

Result NO DATA

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
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous

Nearby scientific data

(1) -146.57034, 61.13126

Ore body information

  • Strike N23-35W
    Dip 75E TO 85W
    Thickness 0.61M
    Length 68.58M

Comments on the geologic information

  • SCHISTOSITY OF COUNTRY ROCK STRIKES E-W WITH 50-55 N DIP; SHEAR ZONE AT GOLD BLUFF STRIKES N 80 E TO S 88 E, DIPS 55-63 N

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1910

Comments on the production information

  • TWO SHIPMENTS OF ORE WERE REPORTED FROM SEALY-DAVIS PROPERTY; NO DATA ON AMOUNT OR GRADE; USGS BULL 622, P. 174-175

Workings at the site

  • Type of workings Underground
    Name of workings SEALY DAVIS MINE
    Length 457.2M

Comments on the workings information

  • SEALY-DAVIS MINE HAD ABOUT 1500 FT OF UNDERGROUND WORKINGS ON 4 DIFFERENT LEVELS BY 1914; GOLD BLUFF HAD ABOUT 200 FT OF WORKINGS BY 1912; PRESENT CONDITIONS UNKNOWN

Comments on development

  • LOCATED 1910; DEVELOPMENT BETWEEN 1911 AND ABOUT 1915 AT SEALY-DAVIS; NO RECORD OF ACTIVITY AT GOLD BLUFF AFTER 1914

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A011456

Bibliographic references

  • Deposit

    USGS BULL 520, P. 124

  • Deposit

    USGS BULL 622, P. 152-153, 174-175, 182

  • Deposit

    USGS MF-438, LOC. 15

  • Deposit

    USGS OFR 80-892B, LOC. 12

  • Other Database

    BAG-OFR-80-892B-12

General comments

Subject category Comment text
Deposit SEALY-DAVIS: FISSURE VEIN UP TO 2 FT THICK STRIKES N 23-35 W, DIPS75 E TO 85 W; EXTENDS OVER VERTICAL DISTANCE OF 225 FT; CONTAINS GOLD, PYRITE, ARSENOPYRITE, CHALCOPYRITE, SPHALERITE, GALENA AND PYRRHOTITE; GOLD BLUFF: SHEAR ZONE WITH A FEW SHORT LENSES OF QUARTZ NO MORE THAN 4IN THICK AND 1/2 IN THICK QUARTZ STRINGERS CARRYING CALCITE, CHLORITE, PYRITE, PYRRHOTITE, CHALCOPYRITE AND PROBABLE GOLD
Deposit SEE ALSO: CLIFF MINE, ALICE MINE ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1985 Leonard, Kenneth R. (Elliott, R. L.) U.S. Geological Survey
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.