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Old No. 2

Prospect in Alaska, United States with commodities Gold, Antimony
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Alteration
  8. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Mining district
  11. Links to other databases
  12. Bibliographic references
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10307446
Record type Site
Current site name Old No. 2

Geographic coordinates

Geographic coordinates: -147.76196, 64.99167 (WGS84)
Relative position This prospect is on the south side of Old Murphy Dome Road; it is across the road from the western gate to the road down to the Scrafford mine (FB077) in the NE1/4 sec. 21, T. 2 N., R. 1 W., Fairbanks Meridian.

Site location context

Political divisions (FIPS codes)

Fairbanks North Star(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Fairbanks D-2(quadrangle 1:63,360 scale)

Big Delta NW(quadrangle 1:100,000 scale)

Fairbanks(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Alaska(hydrologic region)

Federal lands

LG(Federal land areas administered by LG)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary
Antimony Critical Primary

Materials information

Materials Type of material
Gold Ore
Stibnite Ore

Alteration

  • (Local) Pervasive iron-staining is found in the footwall schist. Clay-sericite alteration and fault gouge are developed in the shear zone (Dashevsky, 1993).

Nearby scientific data

(1) -147.76196, 64.99167
ListMap

Economic information

Comments on the geologic information

  • 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.

Economic information about the deposit and operations

Development status Prospect

Comments on exploration

  • Status = Inactive

Mining district

District name Fairbanks

Comments on the workings information

  • 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.

Reference information

Bibliographic references

  • 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).

Comments on the references

  • Primary Reference = Dashevsky, 1993

General comments

Subject category Comment text
Deposit Model Name = Gold-antimony shear zone in quartz-mica and graphitic, phyllitic schists.

Reporter information

Type Date Name Affiliation Comment
Reporter 31-JUL-01 J.R. Guidetti Schaefer and C.J. Freeman Avalon Development Corporation

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Maps centered on this site

Authoritative Alaska resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.