Old No. 2

The Old No. 2 is a antimony and gold mine located in Alaska.

About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

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Site Name

Primary: Old No. 2

Commodity

Primary: Antimony
Primary: Gold

Location

State: Alaska
District: Fairbanks

Land Status

Not available

Holdings

Not available

Workings

Not available

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Prospect
Operation Type: Unknown
Years of Production:
Organization:
Significant:

Physiography

Not available

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Not available

Alterations

Alteration Type: L
Alteration Text: Pervasive iron-staining is found in the footwall schist. Clay-sericite alteration and fault gouge are developed in the shear zone (Dashevsky, 1993).

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Stibnite
Ore: Gold

Comments

Comment (Exploration): Status = Inactive

Comment (Deposit): Model Name = Gold-antimony shear zone in quartz-mica and graphitic, phyllitic schists.

Comment (Reference): Primary Reference = Dashevsky, 1993

Comment (Workings): Workings / Exploration = In 1964, a high-grade antimony shear zone, the No. 2 vein, was discovered by Silver Ridge Mining Co. while clearing a turnout beside the road. Minor trenching took place, and a 35-foot shaft was sunk. The original trenches were periodically cleaned out and resampled by later operators. In 1991, additional prospecting was conducted by American Copper and Nickel Company and one hole was drilled.

Comment (Geology): Geologic Description = The following geologic description is summarized from a report by Sam Dashevsky (1993) on work done by American Copper and Nickel Company on the Eagle Creek property in the early 1990's. In 1964, a high-grade antimony shear zone, the No. 2 vein, was discovered by Silver Ridge Mining Co. The shear was explored by minor trenching and a 35-foot shaft. In 1976, high gold values were recognized at the prospect. The prospect is within sub-horizontal, quartz-mica and graphitic phyllitic schists that are cut by a 4.5-foot-wide zone filled with gouge. The fault zone is exposed in one of several sloughed trenches that trend east-northeast across the ridge along Old Murphy Dome road. The fault zone is exposed for 160 feet along strike in trenches; it is 3.5 to 9.5 feet thick and extends beyond the trenches for an unknown distance. Twenty-five feet of schist in the footwall contains 220 to 750 ppb gold and averages 0.01 ouncesof gold per ton. A 4.5-foot-wide fault zone at the southeast end of the trench averages 11,300 ppb gold (0.33 ounce of gold per ton) and 1 to 3 percent antimony. A reverse circulation drill hole intercepted a weakly mineralized zone, 5 feet long of quartz, limonitic schists, and abundant gouge that contained 130 ppb gold, 722 ppm arsenic, and 1,334 ppm anitmony. Limonitic footwall schist persists for 85 feet,and is truncated by a shear zone that runs 0.06 ouncesof gold per ton over 5 feet.

References

Reference (Deposit): Dashevsky, S.S., 1993, Eagle Creek project (Au), Fairbanks district, Alaska: American Copper and Nickel Company, Inc., 60 p. (Report held by Sam Dashevsky, Northern Associates Inc., Fairbanks, Alaska; can be examined with permission from current lease holders).

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