Wulik Knot

Occurrence in Alaska, United States with commodity Copper

Geologic information

Identification information

Deposit ID 10003159
MRDS ID A015692
Record type Site
Current site name Wulik Knot

Geographic coordinates

Geographic coordinates: -163.01377, 68.35944 (WGS84)
Relative position This occurrence is at an elevation of about 1,650 feet, approximately 4 miles northwest of Sheep Mountain. The map site is in section 11, T. 34 N., R. 19 W ., of the Kateel River Meridian.
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Geographic areas

Country State
United States Alaska


Commodity Importance
Copper Primary

Materials information

Materials Type of material
Azurite Ore
Malachite Ore

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Chemical Sediment > Chert

Nearby scientific data

(1) -163.01377, 68.35944

Comments on the geologic information

  • Geologic Description = The Wulik Knot occurrence consists of malachite and azurite that coat fractures in a small outcrop of gray chert surrounded by maroon shale of Mesozoic age (C.F. Mayfield, written communication, 1979).
  • Age = Mesozoic

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Lisburne

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A015692
USGS Alaska Resource Data File ARDF DL007

Bibliographic references

  • Deposit

    Ellersieck, I.F., Curtis, I.M., Gruzensky, A.L., Mayfield, C.F., and Tailleur, I.L., 1980, Copper, lead and zinc in stream-sediment samples from the DeLong Mountains quadrangle, Alaska: U.S. Geological Survey Open-File Report 80-795, 3 sheets, scale 1:250,000.

  • Deposit

    Cobb, E.H., Mayfield, C.F., and Brosge, W.P., 1981, Summaries of data on and lists of references to metallic and selected nonmetallic mineral occurrences in eleven quadrangles in northern Alaska (Arctic, Baird Mountains, Chandler Lake, DeLong Mountains, Demarcation Point, Howard Pass, Misheguk Mountain, Mount Michelson, Noatak, Point Lay, and Table Mountain); Supplement to Open-File Report 75-628; Part A, Summaries of data to January 1, 1981: U.S. Geological Survey Open-File Report 81-767-A, 25 p.

Comments on the references

  • Primary Reference = Cobb and others, 1981

General comments

Subject category Comment text
Deposit Model Name = Secondary copper minerals on fractures in chert.

Reporter information

Type Date Name Affiliation Comment
Reporter 21-DEC-99 Williams, Anita U.S. Geological Survey