Lucky Top

Prospect in Alaska, United States with commodities Gold, Lead

Geologic information

Identification information

Deposit ID 10093979
MRDS ID A011321
Record type Site
Current site name Lucky Top
Related records 10112875

Geographic coordinates

Geographic coordinates: -147.25082, 63.18852 (WGS84)
Relative position This prospect is at an elevation of 500 feet about 0.2 mile northwest of the top of Lucky Hill. It is on the boundary of secs. 7 and 18, T. 20 S., R. 3 E., of the Fairbanks Meridian. The location is accurate to within 500 feet. This site is loc. 17 in Smith (1981) and loc. 52 in Clark and Cobb (1972).
(click for info)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary
Lead Secondary

Materials information

Materials Type of material
Arsenopyrite Ore
Galena Ore
Gold Ore
Quartz Gangue

Mineral occurrence model information

Model code 273
USGS model code 36a
Deposit model name Low-sulfide Au-quartz vein
Mark3 model number 27

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Slate

Nearby scientific data

(1) -147.25082, 63.18852

Comments on the geologic information

  • Geologic Description = The country rocks at the Lucky Top prospect is pelitic phyllite containing biotite porphyroblasts, and minor garnet and actinolitic hornblende. The hornblende at a nearby locality has been dated by K-Ar methods at 64.1 Ma (Smith, 1981).? the deposit consists of an auriferous, banded, comb-quartz vein in well-defined slate walls. It is accompanied by gouge and slickenslides and contains arsenopyrite and galena. Some small specimens of the quartz run very high in gold (Tuck, 1938). The placer on Lucky Gulch (HE207), located directly downslope from this prospect, is well known for its nuggets and coarse placer gold.
  • Age = The vein cuts phyllite containing 64.1 Ma actinolitic hornblende.

Economic information

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Valdez Creek

Comments on the workings information

  • Workings / Exploration = There has been surface sampling and test pitting with occasional spectacular gold values. An adit was started in 1936 to test down-dip extension below outcrop.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A011321
USGS Alaska Resource Data File ARDF HE210

Bibliographic references

  • Deposit

    Tuck, Ralph, 1938, The Valdez Creek mining district, Alaska, in 1936: U.S. Geological Survey Bulletin 897-B, p. 109-131.

  • Deposit

    Smith, T.E., 1981, Geology of the Clearwater Mountains, south-central Alaska: Alaska Division of Geological "&" Geophysical Surveys Geologic Report 60, 72 p., 3 sheets, scale 1:63,360.

  • Deposit

    Wiltse, M.A., 1988, Preliminary litho-geochemistry of Gold Hill and Lucky Hill, Valdez Creek mining district, Healy A-1 quadrangle, southcentral Alaska: Alaska Division of Geological "&" Geophysical Surveys, Public-data File 88-41, 9 p., 1 sheet, scale 1:12,000.

  • Deposit

    Wiltse, M.A., and Reger, R.D., 1989, Geologic map of Gold Hill and Lucky Hill, Valdez Creek mining district, Healy A-1 quadrangle, Alaska: Alaska Division of Geological "&" Geophysical Surveys, Public-data File 89-5, scale 1:12,000, 1 sheet.

Comments on the references

  • Primary Reference = Smith, 1981

General comments

Subject category Comment text
Deposit Model Name = Low-sulfide Au-quartz veins (Cox and Singer, 1986; model 36a)
Deposit Other Comments = This vein is the probable source area for the placer gold and large nuggets in Lucky Gulch (HE207) below it.

Reporter information

Type Date Name Affiliation Comment
Reporter 07-APR-2000 D.L. Stevens Stevens Exploration Management Corporation