1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Unnamed (southwest of Indian Pass Lake)

Occurrence in Alaska, United States with commodity Gold
Map
XML
JSON
KML
C
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Host and associated rocks
  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 10000738
MRDS ID A011377
Record type Site
Current site name Unnamed (southwest of Indian Pass Lake)
Alternate or previous names Indian Pass Lake

Geographic coordinates

Geographic coordinates: -143.98457, 62.80274 (WGS84)
Relative position Best location: Richter and others, 1975, USGS MF-655-K, loc. 1. Accurate within 1000 ft radius.

Site location context

Political divisions (FIPS codes)

Valdez-Cordova(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Nabesna D-6(quadrangle 1:63,360 scale)

Nabesna NW(quadrangle 1:100,000 scale)

Nabesna(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
Gold Primary

Materials information

Materials Type of material
Pyrite Ore
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Hornblendite
    Stratigraphic age (youngest) Late Jurassic
    Stratigraphic age (youngest) Late Jurassic
  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Hornblendite

Nearby scientific data

(1) -143.98457, 62.80274
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Disseminated pyrite and small quartz-pyrite veins in small hornblende diorite stock of Jurassic/Triassic age in an area of anomalous gold and copper in stream sediments

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Chistochina; Slana

Comments on the workings information

  • Workings / Exploration = Sample of hornblende diorite containing disseminated pyrite contained 0.3 ppm Au (sample R60, USGS Circ. 593, p. 11). Type of workings: surface

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit Model Name = Lode: disseminated, vein
Deposit Other Comments = More detailed sampling in the Slana area may reveal low grade lodes in the diorite complex with grades of at least 0.01 oz/ton Au

Reporter information

Type Date Name Affiliation Comment
Reporter 04-FEB-1997 Leonard, K.R. U.S. Geological Survey
Reporter 04-FEB-1997 Elliott, R.L. U.S. Geological Survey
Reporter 04-FEB-1997 Richter, D.H. 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.