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Neversweat

Prospect in Alaska, United States with commodities Copper, Lead, Silver, Gold
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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. 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 10001147
MRDS ID A011841
Record type Site
Current site name Neversweat
Alternate or previous names Conkle
Related records 10113049

Geographic coordinates

Geographic coordinates: -144.10263, 62.81968 (WGS84)
Relative position The Neversweat prospect is on the north side of the West Fork of Ahtell Creek about 1.2 miles above its junction with Ahtell Creek. The coordinates are about midway between the two prospects shown by Richter (fig. 5, 1966, no. 2) and is accurate within 500 feet. The prospect is locality 8 of both Richter and Matson (1972) and MacKevett and Holloway (1977). It is in the SE1/4NE1/4,section 16, T. 12N., R. 7 E., Copper River Meridian.

Site location context

Political divisions (FIPS codes)

Valdez-Cordova(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Gulkana D-1(quadrangle 1:63,360 scale)

Gulkana NE(quadrangle 1:100,000 scale)

Gulkana(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Copper River(hydrologic unit)

Copper River(hydrologic accounting unit)

South Central Alaska(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Ahtna, Incorporated(ANCSA Region)

ANCSA Region NTVPIC(Type of land area)

NTVPIC(Federal land areas administered by NTVPIC)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary
Lead Primary
Silver Secondary
Gold Secondary

Materials information

Materials Type of material
Chalcopyrite Ore
Chrysocolla Ore
Galena Ore
Malachite Ore
Pyrite Ore
Limonite Gangue
Quartz Gangue

Mineral occurrence model information

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

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Rock unit name Ahtell Pluton
    Rock description Ahtell Pluton
    Stratigraphic age (youngest) Late Permian
    Stratigraphic age (youngest) Late Permian
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite

Nearby scientific data

(1) -144.10263, 62.81968
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = The prospect is in quartz monzonite of the Grubstake phase of the Pennsylvanian to Permian, Ahtell pluton (Richter, 1966, fig. 2; Richter, Lanphere, and Matson, 1975; Beard and Barker, 1989). About 0.1 miles east of the prospect, the quartz monzonite abuts the Pennsylvanian to Permian, Tetelna Formation along a northwest fault.? the prospect consists of polymetallic quartz veins that contain a few percent of galena and lesser amounts of chalcopyrite. The primary minerals are in part oxidized to malachite, chrysocolla, and limonite in underground exposures (Thorne, 1946, p. 7). The prospect was active when visited by Thorne in 1945 who noted that the ground was extensively brush covered. In the main upper adit of the westernmost occurrence, the deposit is a 6-foot thick shear zone that contains three mineralized quartz veins that strike N15E and dip 70W. A representative 42-inch sample cut on the sill (floor) of the adit near the face contained 0.01 ounce of gold per ton, a trace of silver, 6.58 percent lead, and 0.19 percent copper. A shallow adit, apparently on the same structure, 300 feet south of the upper adit, contains a narrow vein with galena and chalcopyrite. Richter (1966, p. 30) reports a two-foot-wide vein that is 300 feet east of the lower adit; it contains small amounts of pyrite and chalcopyrite.
  • Age = Emplaced subseqent to or is related to the border phase of the Pennsylvanian to Permian, Ahtell pluton.

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Chistochina

Comments on the workings information

  • Workings / Exploration = The prospect was discovered and explored before 1925 (Moffit, 1938, p. 46-47; 1954). It was restaked as the Neversweat claims in 1943 (Thorne, 1946) and was actively prospected by its owners in 1945 when visited by Thorne. The prospect was subsequently restaked by Sam Gamblin (Richter, 1966, p. 30) who reported that the prospect was also known as the Conkle lead prospect.

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Thorne, 1946 and Richter, 1966

General comments

Subject category Comment text
Deposit Model Name = Polymetallic vein (Cox and Singer, 1986; model 22c)
Deposit Other Comments = Additional information can be obtained from Ahtna Minerals in Anchorage, Alaska.

Reporter information

Type Date Name Affiliation Comment
Reporter 04-DEC-00 W.T. Ellis Alaska Earth Sciences
Reporter 04-DEC-00 Hawley, C.C. Hawley Resource Group
Reporter 04-DEC-00 W.J. Nokleberg 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.