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Norms Vein

Prospect in Alaska, United States with commodities Silver, Gold, Arsenic, Copper, Mercury, Lead, Antimony, Zinc
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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. Mineral occurrence model information
  9. Nearby scientific data
  10. Economic information about the deposit and operations
  11. Mining district
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10308134
Record type Site
Current site name Norms Vein

Geographic coordinates

Geographic coordinates: -160.63141, 55.24023 (WGS84)
Relative position This prospect is located on Unga Island approximately 3 miles west of the Squaw Harbor cannery on Baralof Bay (Wilson and others, 1988, locality 43). The map site is at an elevation of about 750 feet, about 0.15 mile southwest of the center of sec. 14, T. 57 S., R. 75 W., of the Seward Meridian. The location is accurate to within 1,000 feet.

Site location context

Political divisions (FIPS codes)

Aleutians East(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Port Moller A-2(quadrangle 1:63,360 scale)

Unga Island(quadrangle 1:100,000 scale)

Port Moller(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Cold Bay(hydrologic unit)

Aleutian Islands(hydrologic accounting unit)

Southwest(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Unga Corporation(ANCSA Village)

ANCSA Village NTVPIC(Type of land area)

NTVPIC(Federal land areas administered by NTVPIC)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Silver Primary
Gold Primary
Arsenic Critical Secondary
Copper Secondary
Mercury Secondary
Lead Secondary
Antimony Critical Secondary
Zinc Critical Secondary

Materials information

Materials Type of material
Galena Ore
Gold Ore
Pyrite Ore
Sphalerite Ore
Barite Gangue
Quartz Gangue

Alteration

  • (Local) The rocks at this prospect exhibit strong silicification and some argillization.

Mineral occurrence model information

Model code 85
USGS model code 22c
Deposit model name Polymetallic veins
Mark3 model number 46

Nearby scientific data

(1) -160.63141, 55.24023
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = This prospect is a linear, northeast-striking stockwork of reticulated, gossanous, multistage quartz veins in intensely brecciated and silicified andesite and rhyolite tuffs. The stockwork is 1,800 feet long and as much as 600 feet wide. The host rocks are part of the late Eocene to early Oligocene Popof volcanic rocks (Wilson and others, 1995). Silicification is most intense in a 50- to 100-foot-wide zone on the northwest side of the stockwork. The quartz veins contain pods and lenses of barite and variable amounts of galena, pyrite,and sphalerite (Peterson and others, 1982). In the area east of the stockwork, the country rocks are highly fractured and partly silicified and argillized. Channel samples contained as much as 2.35 ppm gold, 19.0 ppm silver, 5,700 ppm lead, 1,305 ppm zinc, 346 ppm copper, 5 ppm or more mercury, and 320 ppm arsenic. Grab samples contained as much as 0.585 ppm gold, 21 ppm silver, 4,000 ppm lead, 6,160 ppm zinc, 705 ppm copper, 5 ppm or more mercury, and 1,000 ppm or more arsenic (Peterson and others, 1983). Antimony, tellurium, and thallium are also present. The highest values in drill core were 1.41 ppm gold and 47 ppm silver (Wilson and others, 1988). Battle Mountain Exploration Company examined and sampled this site in 1990. Thirty-two samples of vein material all contained less than 0.1 ppm gold. Two samples of pyritic and argillically-altered rock from the footwall contained 0.444 and 0.459 ppm gold. Arsenic values commonly exceeded 100 ppm and mercury values exceeded 1 ppm (Ellis and Apel, 1990).
  • Age = Eocene or younger.

Economic information about the deposit and operations

Development status Prospect

Comments on exploration

  • Status = Inactive

Mining district

District name Alaska Peninsula

Comments on the workings information

  • Workings / Exploration = Resource Associates of Alaska and UNC Teton Exploration Drilling Company explored on this prospect from 1979 to 1983. They collected 100 rock, 134 core, and 81 channel samples; conducted VLF-EM surveys; cut 380 feet of trenches; and drilled two core holes for a total of 776 feet. The highest precious metal values are: channel samples, 2.35 ppm gold and 19 ppm silver; grab samples, 0.585 ppm gold and 21 ppm silver; drill core, 1.41 ppm gold and 47 ppm silver. In 1990 Battle Mountain Exploration Company collected 32 vein samples, all of which contained less than 0.1 ppm gold. Two altered and pyritic wall rock samples contained 0.444 and 0.459 ppm gold.

Reference information

Bibliographic references

  • Deposit

    Peterson, R.J., Lemmers, J., Handverger, P., Gallagher, J., Pilcher, R., East, J., Macleod, T., Bartels. E., 1982, Geology and precious metals potential Unga, Popof, and Korovin Islands, Shumagin Group, Aleutian Chain, Alaska: UNC Teton Exploration Drilling Company report, 127 p., 5 map sheets, various scales. (Report held by the Aleut Corporation, Anchorage, Alaska.)

  • Deposit

    Peterson, R.J., Handverger, P., Rosenkrans, D., Bartels, E, and Woolston, D., 1983, Shumagin Islands precious metal exploration program southwest Alaska: UNC Teton Exploration Drilling Company report, 61 p. (Report held by the Aleut Corporation, Anchorage, Alaska.)

  • Deposit

    Wilson, F.H., White, W.H., and DuBois, G.D., 1988, Brief descriptions of mines, prospects, and mineral occurrences in the Port Moller and Stepovak Bay quadrangles, Alaska Peninsula: U.S. Geological Survey Open-File Report 88-666, 128 p., scale 1:250,000.

  • Deposit

    Ellis, W.T., and Apel, R.A., 1990, Unga/Alaska Peninsula 1990 final report, Battle Mountain Exploration Company report, 49 p., 29 map sheets at various scales. (Report held by the Aleut Corporation, Anchorage, Alaska.)

  • Deposit

    Wilson, F.H., Detterman, R.L., Miller, J. W., and Case, J.E., 1995, Geologic map of the Port Moller, Stepovak Bay, and Simeonof Island quadrangles, Alaska: U.S. Geological Survey Miscellaneous Investigation Series Map I-2272, 1 map sheet, scale 1:250,000.

Comments on the references

  • Primary Reference = Peterson and others, 1982

General comments

Subject category Comment text
Deposit Model Name = Epithermal gold veins, Polymetallic veins (Cox and singer, 1986; model 22c)
Deposit Other Comments = This site is on land patented by, or interim-conveyed to, the Aleut Corporation.

Reporter information

Type Date Name Affiliation Comment
Reporter 15-JAN-01 S.H. Pilcher U.S. Geological Survey

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.