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Hatcher

Prospect in Alaska, United States with commodities Silver, Gold, 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. Alteration
  8. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Economic information about the deposit and operations
  12. Mining district
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10000412
MRDS ID A010577
Record type Site
Current site name Hatcher
Alternate or previous names Utopia, North Gold
Related records 10136970

Geographic coordinates

Geographic coordinates: -150.51059, 59.57338 (WGS84)
Relative position These prospects are located just south of Pilot Harbor on the west side of the North Arm of Nuka Bay. The Hatcher prospect consists of two short adits near the high tide line, just south of the entrance to Pilot Harbor. The Utopia and North Gold claims are described as being about one mile south of Pilot Harbor and the workings consist of a series of short tunnels and prospect pits which trace multiple white quartz veins up the ridge. This is Cobb's (1972, MF-397) location 24 and Richter's (1970) location 7. Cobb (1979, OFR 80-87) summarized the relevant references to this prospect under the name Hatcher. The location of the two adits is accurate to within 300 feet.

Site location context

Political divisions (FIPS codes)

Kenai Peninsula(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Seldovia C-2(quadrangle 1:63,360 scale)

Seldovia NE(quadrangle 1:100,000 scale)

Seldovia(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Resurrection River-Frontal Resurrection Bay(hydrologic unit)

Prince William Sound(hydrologic accounting unit)

South Central Alaska(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Kenai Fjords National Park(National Park)

National Park NPS(Type of land area)

NPS(Federal land areas administered by NPS)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Silver Primary
Gold Primary
Copper Secondary
Lead Secondary
Zinc Critical Secondary

Materials information

Materials Type of material
Arsenopyrite Ore
Chalcopyrite Ore
Galena Ore
Gold Ore
Pyrite Ore
Sphalerite Ore
Quartz Gangue

Alteration

  • (Local) Borden and others (1991) report carbonization, sulfidization, sericitization, and silicification of the wall rock adjacent to the veins.

Mineral occurrence model information

Model code 273
USGS model code 36a
Deposit model name Low-sulfide Au-quartz vein
Mark3 model number 27

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Siltstone
    Rock unit name Valdez Group
    Rock description Valdez Group
    Stratigraphic age (youngest) Paleocene
    Stratigraphic age (youngest) Paleocene

Nearby scientific data

(1) -150.51059, 59.57338
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = The host rock of the prospects is Cretaceous Valdez Group slates and graywackes (Richter, 1970). The quartz veins are typical of the district and consist of white crystalline quartz with varying amounts of sulfides. Arsenopyrite is the dominate sulfide with decreasing amounts of pyrite, chacopyrite, sphalerite, and galena. Gold occurs as free gold and is associated with arsenopyrite. The veins are confined to the more massive graywacke units and commonly pinch out when they splay into the slate units. The veins at the various tunnels and prospect pits range in width from five inches to over five feet. The general strike of the veins is east-west with a near vertical dip.
  • Age = Tertiary; Boden and others (1991) report other veins in the district are about 55 m.y. old.

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Homer

Comments on the workings information

  • Workings / Exploration = The workings consist of several short tunnels and numerous prospect pits. No assay results are reported.

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Richter, 1970; Pilgrim, 1933

General comments

Subject category Comment text
Deposit Model Name = Low-sulfide, Au-quartz vein (Cox and Singer, 1986; model 36a)
Deposit Other Comments = These prospects are within Kenai Fjords National Park; the area is closed to mineral entry.

Reporter information

Type Date Name Affiliation Comment
Reporter 09-FEB-1999 Jeff A. Huber 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.