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Mother

Prospect in Alaska, United States with commodity Gold
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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 10002782
MRDS ID A015246
Record type Site
Current site name Mother
Alternate or previous names Murphy, Stipp, Logan and Murphy
Related records 10136434

Geographic coordinates

Geographic coordinates: -148.12907, 64.89577 (WGS84)
Relative position The Mother prospect is located in the SW1/4SE1/4 sec. 22, T. 1 N., R. 3 W., Fairbanks Meridian. The prospect is on a ledge just east of the west fork of Nugget Creek. The prospect is about 2.4 miles northwest of the top of Ester Dome and at an elevation of about 1,200 feet. The prospect is locality 1 of Cobb (1972 [MF 410]).

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-3(quadrangle 1:63,360 scale)

Fairbanks N(quadrangle 1:100,000 scale)

Fairbanks C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore

Alteration

  • (Local) Quartz is brecciated and iron-stained, and schist is silicified (Hill, 1933).

Nearby scientific data

(1) -148.12907, 64.89577
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Brecciated, iron-stained quartz and silicified schist assayed $0.46 gold per ton (0.022 ounce of gold per ton) (Hill, 1933, p. 122). At the creek level, the vein structure is approximately 20 feet wide. In a cut near the top of the ridge a quarter of a mile east of the creek, a vein consisted of 10 feet of quartz breccia on the north wall and 10 feet of bluish clay with quartz fragments above the south wall. The quartz next to the north wall showed evidence of mineralization and was reported to average $20 of gold per ton (0.97 ounce of gold per ton) in a small area where the upper work was being done (Hill, 1933, p. 122). The clay and quartz carried only a few cents in gold per ton. Some pieces of high-grade quartz with free gold were noted (Hill, 1933, p. 122).

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Fairbanks

Comments on the workings information

  • Workings / Exploration = By 1931, development at this prospect included several open cuts and three tunnels; one was near the creek level and two were near the crest of the ridge to the east. All were caved at the time of Hill's visit (Hill, 1933, p. 121).

Reference information

Bibliographic references

  • Deposit

    Hill, J.M., 1933, Lode deposits of the Fairbanks District, Alaska: U.S. Geological Survey Bulletin 849-B, p. 29-163.

  • Deposit

    Chapman, R.M., and Foster, R.L., 1969, Lode mines and prospects in the Fairbanks district, Alaska: U.S. Geological Survey Professional Paper 625-D, 25 p., 1 plate.

  • Deposit

    Cobb, E.H., 1972, Metallic mineral resources map of the Fairbanks quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-410, 1 sheet, scale 1:250,000.

  • Deposit

    Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Fairbanks quadrangle, Alaska: U.S. Geological Survey Open-File Report 76-662, 174 p.

Comments on the references

  • Primary Reference = Hill, 1933

General comments

Subject category Comment text
Deposit Model Name = Schist-hosted gold-quartz vein

Reporter information

Type Date Name Affiliation Comment
Reporter 31-JUL-2001 J.R. Guidetti Schaefer Avalon Development Corporation
Reporter 31-JUL-2001 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.