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  3. Mineral Resource Data System (MRDS)

Unnamed (northeast of Avaraart Lake)

Prospect in Alaska, United States with commodities Silver, Copper, Lead, 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. Alteration
  7. Mineral occurrence model information
  8. Host and associated rocks
  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 10308339
Record type Site
Current site name Unnamed (northeast of Avaraart Lake)

Geographic coordinates

Geographic coordinates: -155.54343, 67.12957 (WGS84)
Relative position This site represents several prospects in about a 3-square-mile area, approximately 7 miles northeast of Avaraart Lake. The coordinates are for the center of the area, at the intersection of sections 14, 15, 22, and 23, T. 20 N., R. 15 E., of the Kateel River Meridian. Accuracy of location is 2000 ft. The site corresponds to locality 62 of Grybeck and Nelson (1981).

Site location context

Political divisions (FIPS codes)

Northwest Arctic(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Survey Pass A-6(quadrangle 1:63,360 scale)

Survey Pass S(quadrangle 1:100,000 scale)

Survey Pass(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Kobuk River(hydrologic unit)

Kobuk-Selawik Rivers(hydrologic accounting unit)

Northwest(hydrologic subregion)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Silver Primary
Copper Primary
Lead Primary
Zinc Critical Primary

Alteration

  • (Local) Rocks in area commonly are iron stained.

Mineral occurrence model information

Model code 184
USGS model code 28a
Deposit model name Massive sulfide, kuroko
Mark3 model number 93

Host and associated rocks

  • Host or associated Host
    Rock type
    Stratigraphic age (youngest) Mississippian
    Stratigraphic age (oldest) Devonian

Nearby scientific data

(1) -155.54343, 67.12957
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = These prospects explore a silver-basemetal volcanogenic massive sulfide deposit in a sequence of low to medium grade metamorphosed basaltic and rhyolitic rocks, submarine ash flow tuffs, and pelitic and carbonaceous sedimentary rocks known as the Ambler schist belt. The deposit is a Devonian or Mississippian in age, based on fossil evidence and U-Pb radiometric dating in the region (Hitzman and others, 1986). Rocks are commonly iron stained in the area. The deposit has been explored by numerous prospect pits and surface mapping.
  • Age = Syngenetic massive sulfide in Devonian or Mississippian host rocks.

Economic information about the deposit and operations

Development status Prospect

Comments on exploration

  • Status = Active?

Mining district

District name Shungnak

Comments on the workings information

  • Workings / Exploration = Numerous prospect pits and surface mapping.

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Grybeck and Nelson, 1981

General comments

Subject category Comment text
Deposit Model Name = Kuroko massive sulfide (Cox and Singer, 1986; model 28a)

Reporter information

Type Date Name Affiliation Comment
Reporter 22-SEP-99 S.W. Nelson 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.