Ryan Mine

Past Producer in Alaska, United States with commodities Gold, Antimony

Geologic information

Identification information

Deposit ID 10002808
MRDS ID A015279
Record type Site
Current site name Ryan Mine
Related records 10185318

Geographic coordinates

Geographic coordinates: -147.98906, 64.86772 (WGS84)
Relative position 7.5 MILES WEST OF FAIRBANKS
(click for info)

Geographic areas

Country State
United States Alaska

Comments on the location information

  • USGS MF-410, LOC. 18. DEPOSIT ON RIDGE BETWEEN EVA AND ST. PATRICK CREEKS ON THE SE SIDE OF ESTER DOME. MINE MARKED ALONG ESTER DOME RD. ON FAIRBANKS (D-2). 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
Antimony Tertiary

Materials information

Materials Type of material
Gold Ore
Stibnite Ore

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Schist

Nearby scientific data

(1) -147.98906, 64.86772

Comments on the geologic information

  • FAULT ZONE OF CRUSHED SCHIST AND QUARTZ VEINS IS HANGING WALL OF MAJOR SHEAR ZONE 750-1,500 FT. WIDE. FAULT MOVEMENT WAS MAINLY POST MINERALIZATION.

Economic information

Economic information about the deposit and operations

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

Mining district

District name Fairbanks

Comments on the workings information

  • IN 1916-17 ABOUT 500 FT. OF SHAFT AND WINZE AND 970 FT. OF DRIFTS AND CROSSCUTS; THROUGH SAMPLING. ADDITIONAL EXPLORATION AND DEVELOPMENT, 1917-30, INCLUDED A 65 FT. SHAFT AND A CROSSCUT. 1938-42 SAW MORE THAN 1,500 FT. OF SHAFTS, 2,000 FT. OF DRIFTS, ADITS, AND CROSSCUTS, AND MORE THAN 2,800 FT. OF TRENCHES. MINOR TRENCHING AND DRILLING, 1954-58.

Comments on development

  • CLAIMS PATENTED IN 1914. EXTENSIVE UNDERGROUND WORKINGS (NEARLY A MILE) AND TRENCHING, BUT NOT MUCH ORE MINED AND MILLED.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A015279

Bibliographic references

  • Deposit

    USGS MF-410 (D-2), LOC. 18

  • Deposit

    USGS BULL 849-B, P. 135-138

  • Deposit

    USBM OF 23-72

General comments

Subject category Comment text
Deposit USBM DRILLING PROGRAM IN 1969-70 WAS A PILOT STUDY TO COMPARE ROTARY DRILLING AND BULLDOZER TRENCHING FROM COST AND ENVIRONMENTAL DAMAGE POINTS OF VIEW AND WAS NOT INTENDED TO RESULT IN NEW KNOWLEDGE ABOUT THE DEPOSIT. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT
Deposit MINERALIZED FAULT ZONE CONTAINS SHEARED SCHIST AND QUARTZ VEINS IN A LODE 40-70 FT. WIDE. METALIC MINERALS ARE GOLD, ARSENOPYRITE, AND STIBNITE. MOST OF METAL CONTENT IS IN ZONE OF QUARTZ 9-20 FT WIDE NEAR THE HANGING WALL SIDE OF LODE. LENSES OF STIBNITE HAVE BEEN FOUND.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1987 Powers, M.T. (Huber, D.F.) U.S. Geological Survey