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Unnamed (on west side of Little Jarvis Glacier)

Prospect in Alaska, United States with commodities Silver, Gold, Barium-Barite, 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. Materials information
  7. Mineral occurrence model information
  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 10308257
Record type Site
Current site name Unnamed (on west side of Little Jarvis Glacier)

Geographic coordinates

Geographic coordinates: -136.42214, 59.40974 (WGS84)
Relative position This prospect is about 3 miles, N38E from the summit of Mt. Henry Clay at an elevation of approximately 3,500 feet. It is near the southeast corner of section 29, T. 28 S., R. 53 E. of the Copper River Meridian. Still and others (1991) informally named this the 'Little Jarvis' prospect, but also included another prospect on the east side of the Little Jarvis Glacier under the same name. This record applies only to the prospect on the west side of the Little Jarvis Glacier. The prospect on the east side of the glacier has been grouped with the RW Zone prospect (SK067).

Site location context

Political divisions (FIPS codes)

Haines(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Skagway B-4(quadrangle 1:63,360 scale)

Skagway SE(quadrangle 1:100,000 scale)

Skagway C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Chilkat-Skagway Rivers(hydrologic unit)

Northern Southeast Alaska(hydrologic accounting unit)

Southeast Alaska(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

BLM(Federal land areas administered by BLM)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Silver Primary
Gold Primary
Barium-Barite Critical Primary
Copper Primary
Lead Primary
Zinc Critical Primary

Materials information

Materials Type of material
Barite Ore
Galena Ore
Pyrite Ore
Sphalerite Ore

Mineral occurrence model information

Model code 184
USGS model code 28a
Deposit model name Massive sulfide, kuroko
Mark3 model number 93
Model code 91
USGS model code 24b
Deposit model name Massive sulfide, Besshi (Japanese deposits)
Mark3 model number 30

Nearby scientific data

(1) -136.42214, 59.40974
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Still and others (1991) describe this prospect as small discontinuous sulfide bands in metasedimentary and metavolcanic rocks. Samples contained up to 0.345 ppm gold, 11.8 ppm silver, 13.6% zinc, 1,900 ppm copper, 3.8% lead, 1.44% barium, and 2,000 ppm arsenic. Rubicon Minerals (1998) interprets this prospect to occur on a northwest mineral trend along the apex of a shallowly plunging, northwest-trending antiform. This mineral trend extends from the unnamed occurrences (SK070) at the northwest end through the RW Zone prospect (SK067) and Main Zone/Palmer prospect (SK066) to the Red Creek prospect (SK063) at the southeast end. This prospect and other similar prospects in the Mt. Henry Clay area are probably correlative with the Windy Craggy deposit in Canada and the Greens Creek deposit on Admiralty Island and are therefore Late Triassic (Still and others, 1984 [OF 118-84]; Newberry and others, 1997).
  • Age = This prospect and other similar prospects in the Mt. Henry Clay area are probably correlative with the Windy Craggy deposit in Canada and the Greens Creek deposit on Admiralty Island and are therefore Late Triassic (Still, 1984 [OF 118-84]; Newberry and others, 1997).

Economic information about the deposit and operations

Development status Prospect

Comments on exploration

  • Status = Active?

Mining district

District name Juneau (Skagway subdistrict)

Reference information

Bibliographic references

  • Deposit

    Redman, E.C., 1983, Reconnaissance geology of the Glacier Creek area, Skagway B-4 quadrangle, Alaska, in Appendix B of Still, J.C., 1984, Stratiform massive sulfide deposits in the Mt. Henry Clay area, southeast Alaska: U.S. Bureau of Mines Open-File Report 118-84, 65 p.

  • Deposit

    Still, J.C., Weir, K.R., Gilbert, W.G., and Redman, E.C., 1984, Stream-sediment, float, and bedrock sampling in the Porcupine mining area, southeast Alaska: U.S. Bureau of Mines Open-File Report 173-84, 19 p.

  • Deposit

    Still, J.C., Gilbert, W.G., and Forbes, R.B., 1987, Final report of stream sediment, float, and bedrock sampling in the Porcupine mining area, southeast Alaska, 1983-1985: U.S. Bureau of Mines Open-File Report 36-87, 35 p., 8 sheets.

  • Deposit

    Gilbert, W.G., and Redman, E.C., 1989, Lode deposits, prospects, and occurrences of the Porcupine mining area, southeast Alaska: U.S. Bureau of Mines Open-File Report 17-89, 1 sheet, scale 1:39,600.

  • Deposit

    Still, J.C., 1991, Bureau of Mines mineral investigations in the Juneau mining district, Alaska, 1984 - 1988, v. 2, Detailed mine, prospect, and mineral occurrence descriptions, section A, Haines-Klukwan-Porcupine subarea: U.S. Bureau of Mines of Mines Special Publication, 214 p.

  • Deposit

    Still, J.C., Hoekzema, R.B., Bundtzen, T.K., Gilbert, W.G., Wier, K.R., Burns, L.E., and Fechner, S.A., 1991, Economic geology of Haines-Klukwan-Porcupine area, southeastern Alaska: Alaska Division of Geological and Geophysical Surveys Report of Investigations 91-4, 156 p., 5 sheets, scale 1:63,360.

  • Deposit

    Rubicon Minerals, 1998, Palmer VMS Project, southeast Alaska, Executive Summary: unpublished report by Rubicon Minerals Corporation, Vancouver, British Columbia, 25 p.

  • Deposit

    Rutledge, F.A., 1950, Investigation of mercury deposits, Cinnabar Creek area, Georgetown and Akiak districts, Kuskokwim region, southwestern Alaska: U.S. Bureau of Mines Report of Investigations 4719, 9 p.

  • Deposit

    Newberry, R.J., Crafford, T.C., Newkirk, S.R., Young, L.E., Nelson, S.W., and Duke, N.A., 1997, Volcanogenic massive sulfide deposits of Alaska, in Goldfarb, R.J. and Miller, L. D., eds., Mineral deposits of Alaska: Economic Geology Monograph 9, p. 120-150.

Comments on the references

  • Primary Reference = Still and others, 1991

General comments

Subject category Comment text
Deposit Model Name = Probably a Besshi- or Kuroko-type volcanogenic massive sulfide (Cox and Singer, 1986; models 28a or 24b).
Deposit Other Comments = Still and others (1991) group this prospect with another one on the east side of Little Jarvis Glacier. In this compilation, the occurrence on the east side has been grouped with the RW Zone prospect (SK067) where Rubicon Minerals made the first drill discovery of ore grade massive sulfide mineralization in the area in 1999 (Rubicon Minerals, 1999).

Reporter information

Type Date Name Affiliation Comment
Reporter 04-FEB-01 T.C. Crafford T. Crafford & 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

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.