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Long Dike Prospect

Prospect in Lemhi county in Idaho, United States with commodities Cobalt, Nickel, Copper
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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. Land status
  16. Ownership information
  17. Links to other databases
  18. Bibliographic references
  19. Reporter information

Geologic information

Identification information

Deposit ID 10067855
MRDS ID W000727
MAS/MILS ID 0160590420
Record type Site
Current site name Long Dike Prospect

Geographic coordinates

Geographic coordinates: -114.30953, 45.15159 (WGS84)
Elevation 1676
Relative position 5.5 MI. NW. OF COBALT, IDAHO

Site location context

Political divisions (FIPS codes)

Lemhi(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Gant Mountain(quadrangle 1:24,000 scale)

Bighorn Crags(quadrangle 1:100,000 scale)

Elk City(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Middle Salmon-Panther(hydrologic unit)

Salmon(hydrologic accounting unit)

Lower Snake(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Salmon-Challis National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Idaho Lemhi

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 021N 018N 14 Idaho

Commodities

Commodity Importance
Cobalt Critical Primary
Nickel Critical Tertiary
Copper Tertiary

Materials information

Materials Type of material
Cobaltite Ore
Quartz Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Schist
    Rock type qualifier Schistose Quartz-Biotite
    Rock unit name Belt Supergroup
    Rock description Belt Supergroup-Schistose Quartz-Biotite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic

Nearby scientific data

(1) -114.30953, 45.15159
ListMap

Economic information

Geologic structures

Type of structure Local
Structure name Faults

Ore body information

  • Strike N 75 DEG E
    Dip 20 DEG N
    Length 152.4M

Controls for ore emplacement

  • Shear Zone

Comments on the geologic information

  • 1-4 Ft. Shear Zone Trends N 75 Deg E, Dips 30 Deg NW ; Geol.Desc: One-To Four-Foot Shear Zone, Strike N. 75 Deg. E., Dip 30 Deg. Nw; In Slightly Schistose Quartz-Biotite Rock; Maximum Possible Length-500 Ft. Because Of Limiting Faults; Spots Of Quartz, Gossan, And Cobalt And Copper Bloom In Shear Zone
  • Original Structures entry:
    Local - Faults

Economic information about the deposit and operations

Operation type Surface
Development status Prospect
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Blackbird

Land status

Ownership category National Forest
Area name Salmon National Forest

Ownership information

  • Type Owner
    Owner W. T. Keele, E. F. Waterman

Comments on the workings information

  • Discovery Pits, Cat Road, Trenches

Comments on development

  • Econ.Com: Insignificant Reserves, No Economic Potential

Reference information

Bibliographic references

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1972 Coury, Anny B. U.S. Geological Survey
Updater 01-OCT-1976 Siefken, Robert R. (Miller, Pat) U.S. Geological Survey
Reporter 14-NOV-1983 Western Field Operations Center (WFOC) U.S. Bureau of Mines

Beyond USGS

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

Maps centered on this site