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Ginny Creek

Prospect in Alaska, United States with commodities Lead, Zinc, Silver, Copper
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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. 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 10003147
MRDS ID A015680
Record type Site
Current site name Ginny Creek
Related records 10184967

Geographic coordinates

Geographic coordinates: -161.30373, 68.28948 (WGS84)
Relative position Location plotted is prospect locality of Mayfield and others (1979, pl. 1); on ridge between Kugururok River and Trail Creek, about 7 mi (11.2 km) northwest of Misheguk Mountain; located to within 1 mi (1.6 km).??

Site location context

Political divisions (FIPS codes)

Northwest Arctic(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

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

Misheguk Mountain S(quadrangle 1:100,000 scale)

Misheguk Mountain(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Noatak River(hydrologic unit)

Noatak River-Lisburne Peninsula(hydrologic accounting unit)

Northwest(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Noatak National Preserve(National Preserve)

National Preserve NPS(Type of land area)

NPS(Federal land areas administered by NPS)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Lead Primary
Zinc Critical Primary
Silver Secondary
Copper Secondary

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Sphalerite Ore
Pyrite Gangue
Siderite Gangue

Alteration

  • (Local) Iron-staining, leaching

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
    Rock unit name Noatak Sandstone;Noatak Sandstone;Utukok Formation
    Rock description Noatak Sandstone;Noatak Sandstone;Utukok Formation

Nearby scientific data

(1) -161.30373, 68.28948
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Sphalerite, galena, pyrite, and rare chalcopyrite occur mainly as minute crystals scattered throughout mineralized sandstone, which also contains considerable siderite where mineralized and none elsewhere. Thin quartz veins cut the sedimentary beds; most are barren, but sulfides occur sparsely in some of them. Rock and stream sediment samples indicate that the deposit may also contain silver, but the mineral(s) in which silver occurs has not been determined. Mineralized area is at least 1 mile long and up to 1/2 mile wide. Deposit apparently formed by hydrothermal open-space filling and replacement rather than by hot-spring deposition on sea floor; deposit is in lowest (Brooks Range) thrust sequence in area. Surface rubble is a discontinuous mixture of gossan and partly iron-stained sandstone. Sulfides are preserved only in the least weathered surface rocks. Surface leaching produces a pitted appearance on many of the limonite-rich rocks. Deposit is in region of extreme thrust faulting.

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Noatak

Comments on the workings information

  • Workings / Exploration = Analyzed samples contain 0.3-1% Zn and variable Pb concentrations (Mayfield and others, 1979, p. 9-17)

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Mayfield and others (1979, OFR 79-1092)

General comments

Subject category Comment text
Deposit Model Name = Sediment-hosted Pb-Zn.
Deposit Other Comments = See MAS/MILS Sequence # 0020190007 (USBM, 1995)

Reporter information

Type Date Name Affiliation Comment
Reporter 22-OCT-1992 M.T.Powers U.S. Geological Survey
Reporter 22-OCT-1992 D.F. Huber U.S. Geological Survey
Reporter 22-OCT-1992 J.M. Schmidt 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.