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

Unnamed (northeast of upper Cross Creek)

Prospect in Alaska, United States with commodities Silver, Lead, Zinc, 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 10093988
MRDS ID A011407
Record type Site
Current site name Unnamed (northeast of upper Cross Creek)
Alternate or previous names Cross Creek
Related records 10282999

Geographic coordinates

Geographic coordinates: -142.59059, 62.08636 (WGS84)
Relative position Best location: Richter, 1973, USGS I-789, loc. 16. Accurate within 100 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 A-4(quadrangle 1:63,360 scale)

Nabesna SW(quadrangle 1:100,000 scale)

Nabesna C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Alaska(hydrologic region)

Federal lands

Wrangell-St. Elias 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
Silver Primary
Lead Primary
Zinc Critical Primary
Copper Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Sphalerite Ore
Quartz Gangue

Alteration

  • (Local) Deuteric, hydrothermal

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyodacite
    Rock unit name Tetelna Volcanics;Cross Creek Porphyry Complex;;;;
    Rock description Tetelna Volcanics;Cross Creek Porphyry Complex;;;;
    Stratigraphic age (youngest) Late Permian
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic)

Nearby scientific data

(1) -142.59059, 62.08636
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Zone of intense hydrothermal alteration containing fragments of volcanic rock cemented by quartz carrying pyrite, galena, sphalerite and chalcopyrite. Country rock is mapped as Tertiary porphyry complex, but may include argillite and limestone of Permian age, gabbro dikes and sills of Triassic age, and rocks of the Pennsylvanian-Permian Tetelna Volcanics

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Chisana

Comments on the workings information

  • Workings / Exploration = Grab sample of limonite-stained material (USGS OF 398, sample 848) contained 50 ppm Ag, 100 ppm Cu, more than 10,000 ppm Pb, more than 10,000 ppm Zn. Type of workings: surface

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit Model Name = Lode: breccia pipe

Reporter information

Type Date Name Affiliation Comment
Reporter 31-JAN-1997 Leonard, K.R. U.S. Geological Survey
Reporter 31-JAN-1997 Elliott, R.L. U.S. Geological Survey
Reporter 31-JAN-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.