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  3. Mineral Resource Data System (MRDS)

Beltz

Prospect in Alaska, United States with commodity Copper
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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 10307307
Record type Site
Current site name Beltz

Geographic coordinates

Geographic coordinates: -161.11333, 65.5594 (WGS84)
Relative position The Beltz prospect is at an elevation of about 1,000 feet on the ridge about 0.6 miles west-northwest of the junction of Split and Bear Creeks. The map site is in section 23, T. 2 N., R. 12 W., of the Kateel River Meridian.

Site location context

Political divisions (FIPS codes)

Northwest Arctic(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Candle C-5(quadrangle 1:63,360 scale)

Candle N(quadrangle 1:100,000 scale)

Candle(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Buckland River(hydrologic unit)

Northern Seward Peninsula(hydrologic accounting unit)

Northwest(hydrologic subregion)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary

Comments on the commodity information

  • Gangue = Iron oxides

Materials information

Materials Type of material
Chalcopyrite Ore
Malachite Ore
Quartz Gangue

Alteration

  • (Local) Local iron- and copper-staining.

Nearby scientific data

(1) -161.11333, 65.5594
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Bedrock at the Beltz prospect is mainly altered, Jurassic-Cretaceous andesitic tuff and greenstone cut by mafic and felsic dikes. Quartz and calcite veins carry disseminated chalcopyrite. The rocks are iron- and copper-stained (Harrington, 1919).
  • Age = Jurassic-Cretaceous or younger.

Economic information about the deposit and operations

Development status Prospect

Comments on exploration

  • Status = Inactive

Mining district

District name Fairhaven

Comments on the workings information

  • Workings / Exploration = The deposit has been prospected by ten or more small pits. In 1917, the pits were badly caved and filled with slope talus (Harrington, 1919). The site was visited by Herreid (1965), who reports a trench 80 feet long and 3 to 5 feet deep.

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Harrington, 1919

General comments

Subject category Comment text
Deposit Model Name = Chalcopyrite-quartz-calcite veins in andesite, tuff, and greenstone.

Reporter information

Type Date Name Affiliation Comment
Reporter 12-JAN-00 Williams, Anita 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.