Clark Group

Occurrence in Elko county in Nevada, United States with commodities Copper, Gold, Silver
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Ownership information
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10045971
MRDS ID M233873
Record type Site
Current site name Clark Group

Geographic coordinates

Geographic coordinates: -114.61395, 41.79991 (WGS84)
Elevation 1951
Relative position ABOUT 2 MILES E. OF MIDDLE STACK MT.

Site location context

Political divisions (FIPS codes)

Elko(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Tijuana John Peak(quadrangle 1:24,000 scale)

Jackpot(quadrangle 1:100,000 scale)

Wells(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Salmon Falls(hydrologic unit)

Upper Snake(hydrologic accounting unit)

Upper Snake(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management NV)

Bureau of Land Management NV BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Nevada Elko

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 045N 065E 09 Nevada

Commodities

Commodity Importance
Copper Primary
Gold Secondary
Silver Secondary

Materials information

Materials Type of material
Bornite Ore
Chalcopyrite Ore

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Stratigraphic age (youngest) Late Jurassic
    Stratigraphic age (youngest) Late Jurassic
    Stratigraphic age (youngest) Late Permian
  • Host or associated Host
    Rock type Unconsolidated Deposit > Silt
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
  • Host or associated Host
    Rock type Sedimentary Rock > Chemical Sediment > Chert

Nearby scientific data

(1) -114.61395, 41.79991

Economic information

Geologic structures

Type of structure Local
Structure description Granodiorite Stock With Assoc. Faults, Fractures

Ore body information

  • General form TABULAR
    Length 1609.3M
    Width 804.65M

Controls for ore emplacement

  • Intrusive Veins Fractures Granodiorite Contact

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1912

Mining district

District name Contact (48)

Ownership information

  • Type Owner
    Owner Clark, George

Comments on development

  • 6 OR MORE

Reference information

Bibliographic references

  • Deposit

    SMITH, R.M. (1976) MINERAL RESOURCES OF ELKO CO., NEV.: USGS OFR 76-56, P 39-45

  • Deposit

    SCHRADER, F.C. (1935) THE CONTACT MINING DISTRICT, NEVADA: USGS BUL 847-A

  • Deposit

    HOPE, R.A. & COATS, R.R. (1976) PRELIM. GEOLOGIC MAP OF ELKO CO., NEV: USGS OFR 76-779

  • Deposit

    SCHRADER, F.C. (1912) A RECONN. OF THE JARBIDGE, CONTACT, AND ELK MT. MINING DISTRICTS, ELKO CO., NEVADA: USGS BUL. 497.

General comments

Subject category Comment text
Deposit THE CLARK GROUP CONSISTS OF 6 OR MORE CLAIMS OWNED BY GEORGE CLARK. THE GROUP CENTERS AROUND THE BOSTON MINE. IT JOINS THE O'CONNELL GROUP ON THE PAST, AND EXTENDS FOR NEARLY A MILE, WITH THE MINERALIZED ZONE HALF A MILE OR MORE IN WIDTH. THE CONTACT LIES AT THE SOUTHERN EDGE OF THE ZONE, THE CONTACT ZONE IS COMPOUND, WITH DETACHED BANDS OF LIMESTONE, AND SYENITE OR APLITE DIKES. FOR DETAILS ON THE DAKOTA, MINNESOTA, CONTACT, BRIDGEPORT, AND MARY T. CLAIMS IN THIS GROUP, SEE SCHRADER, 1912, P 148-9, MAP LOCATION ESTIMATED, BASED ON SCHRADER'S DISCRIPTION (1912, P 147-8) ; INFO.SRC : 1 PUB LIT
Deposit VEIN, IGNEOUS CONTACT ZONE

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1979 Weimer, Becky S. Nevada Bureau of Mines and Geology

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Authoritative Nevada resources

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