Unnamed (northeast of Hogan Hill)

Occurrence in Alaska, United States with commodity Copper
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 10001142
MRDS ID A011835
Record type Site
Current site name Unnamed (northeast of Hogan Hill)

Geographic coordinates

Geographic coordinates: -145.45266, 62.67965 (WGS84)
Relative position This occurrence (Cobb, 1979 [OF 79-1247]) is east of the Richardson Highway on the upper reaches of Haggard Creek, about 2.0 miles north-northeast of Hogan Hill (GU008). It is the same locality reported as number 2 by Rose and Sanders (1965, p.14), Mulligan (1974), Richter and Matson (1972), and MacKevett and Holloway (1977). The occurrence is in the SW1/4SE1/4, section 32, T. 11 N., R. 1 W., 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 C-3(quadrangle 1:63,360 scale)

Gulkana NE(quadrangle 1:100,000 scale)

Gulkana C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Middle Copper River(hydrologic unit)

Copper River(hydrologic accounting unit)

South Central 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
Copper Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Pyrite Ore

Alteration

  • (Local) K-feldspar and propylitic (chlorite) alteration of granodiorite adjacent to mineralized fractures (Rose and Saunders, 1965).

Mineral occurrence model information

Model code 53
USGS model code 17
Deposit model name Porphyry Cu
Mark3 model number 4

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite

Nearby scientific data

(1) -145.45266, 62.67965

Economic information

Comments on the geologic information

  • Geologic Description = Pyrite and traces of chalcopyrite occur on fracture surfaces in a late Jurassic(?) granodiorite pluton which is part of the Gulkana River metamorphic complex (Rose and Saunders, 1965; Berg and Cobb, 1967; and Nokleberg and others, 1994).
  • Age = Mineralization is related to granodiorite which is probably Late Jurassic.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Chistochina

Comments on the workings information

  • Workings / Exploration = There are old gold prospect pits in the general area but no data on the actual presence of gold (Mulligan, 1974).

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Rose and Saunders, 1965

General comments

Subject category Comment text
Deposit Model Name = Porphyry Cu(?) (Cox and Singer, 1986; model 17)
Deposit Other Comments = See also Hogan Hill (GU008).

Reporter information

Type Date Name Affiliation Comment
Reporter 20-DEC-00 W.T. Ellis Alaska Earth Sciences
Reporter 20-DEC-00 Hawley, C.C. Hawley Resource Group
Reporter 20-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.

Authoritative Alaska resources

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