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Konechney Prospect (Mission Creek)

Prospect in Alaska, United States with commodities Silver, Gold, Copper, Lead, Antimony, Tin, Uranium, Tungsten
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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 10308997
MRDS ID A013414
Record type Site
Current site name Konechney Prospect (Mission Creek)
Related records 10112909, 10002479

Geographic coordinates

Geographic coordinates: -159.11487, 61.65035 (WGS84)
Relative position This prospect is in the Russian Mountains on the ridge at the head of Mission Creek, 1,000 feet northeast of peak 2710. The map site is in the NW1/4 sec. 17, T. 18 N., R. 54 W., of the Seward Meridian. This is locality 5 of Hoare and Cobb (1972, 1977) and sample locality 15 of Bundtzen and Laird (1991).

Site location context

Political divisions (FIPS codes)

Bethel(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Russian Mission C-1(quadrangle 1:63,360 scale)

Russian Mission NE(quadrangle 1:100,000 scale)

Russian Mission(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Aniak(hydrologic unit)

Lower Kuskokwim River(hydrologic accounting unit)

Southwest(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Kuskokwim 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
Copper Primary
Lead Secondary
Antimony Critical Secondary
Tin Critical Secondary
Uranium Secondary
Tungsten Critical Secondary

Materials information

Materials Type of material
Arsenopyrite Ore
Azurite Ore
Bornite Ore
Cassiterite Ore
Chalcocite Ore
Chalcopyrite Ore
Chrysocolla Ore
Covellite Ore
Cuprite Ore
Galena Ore
Goethite Ore
Gold Ore
Malachite Ore
Pyrite Ore
Scheelite Ore
Stephanite Ore
Stibnite Ore
Metazeunerite Ore
Quartz Gangue
Tourmaline Gangue

Alteration

  • Silicification and tourmalinization.

Mineral occurrence model information

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

Nearby scientific data

(1) -159.11487, 61.65035
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = This prospect, discovered and first staked in 1921, is named after one of its discovers, Joseph Konechney. Konechney persistently explored the prospect with trenches and two levels of underground workings for many years (Hoare and Coonrad, 1977). The deposits are quartz-sulfide-tourmaline greisen veins developed near the contact between syenite and an axinite-bearing andesite porphyry dike. The mineralized zone, which has been traced northwest for at least 470 feet, contains quartz tourmaline, arsenopyrite, chalcopyrite, pyrite, metazeunerite, gold, scheelite, and cassiterite. Late-forming minerals include chalcocite, bornite, stibnite (?), stephanite, covellite, cuprite, azurite, malachite, goethite, and chrysocolla (Bundtzen and Laird, 1991). Twelve channel samples collected by Bundtzen and Laird (1991) combined with five collected by Holzheimer (1926) average 4.44 ppm gold, 1.64 percent copper, 1.14 percent arsenic, and 0.24 percent antimony. The samples also contain anomalous levels of tin (to 200 ppm), silver (to 317 ppm), and uranium (to 106 ppm). The only sample analyzed for bismuth by Bundtzen and Laird (1991) contained 112 ppm of this element. Wedow and others (1953) and West (1954) examined the prospect for radioactive minerals; the highest eU content they observed was 0.006 percent. Assuming dimensions, in feet, of 3.4 x 400 x 470, Bundtzen and Laird (1991) estimated a resource of 37,600 tons of material with the stated average grades. The country rocks are part of the Upper Cretaceous intrusive complex of the Russian Mountains.
  • Age = Late Cretaceous or Tertiary. Veins crosscut part of the intrusive complex of the Russian Mountains. Quartz monzonite from this complex has yielded a K/Ar age of 70.3 +/- 2.1 Ma (Bundtzen and Laird, 1991).

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Mining district

District name Aniak

Comments on the reserve resource information

  • Reserves = Assuming dimensions, in feet, of 3.4 x 400 x 470, Bundtzen and Laird (1991) estimate a resource of 37,600 tons of material averaging 4.44 ppm gold, 1.64 percent copper, 1.14 percent aresenic, and 0.24 percent antimony, along with as much as 200 ppm tin, 317 ppm silver, and 106 ppm uranium.

Comments on the workings information

  • Workings / Exploration = Surface trenches and two adits (now caved) with a total of 900 feet of underground workings have been completed. The main adit was 800 feet long. Maps of the underground workings were made by Holzheimer (1926) and are described in Bundtzen and Laird (1991).

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Bundtzen and Laird, 1991

General comments

Subject category Comment text
Deposit Model Name = Polymetallic veins (Cox and Singer, 1986; model 22c)

Reporter information

Type Date Name Affiliation Comment
Reporter 10-JUN-2001 Travis L. Hudson Applied Geology
Reporter 10-JUN-2001 Madelyn A. Millholland Millholland & Associates

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Maps centered on this site

Authoritative Alaska resources

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