Merle Zone

Occurrence in Lemhi county in Idaho, United States with commodities Cobalt, Copper, Nickel
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. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Links to other databases
  17. Bibliographic references
  18. Reporter information

Geologic information

Identification information

Deposit ID 10070550
MRDS ID W013530
MAS/MILS ID 0160590613
Record type Site
Current site name Merle Zone
Included sites Blackbird Mine

Geographic coordinates

Geographic coordinates: -114.33623, 45.12519 (WGS84)
Elevation 2149
Relative position 5 1/8 MI. NW OF COBALT

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 018E 27 Idaho

Commodities

Commodity Importance
Cobalt Critical Primary
Copper Tertiary
Nickel Critical Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Cobaltite Ore
Magnetite Gangue
Quartz Gangue

Alteration

  • (Local) Silicification

Analytical data

Result .8 % NI

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock
    Rock unit name Basic Dike
    Rock description Basic Dike
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Eocene
    Stratigraphic age (youngest) Eocene
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
    Rock unit name Yellowjacket Formation-Quartzite, Schist
    Rock description Yellowjacket Formation-Quartzite, Schist
  • Host or associated Host
    Rock type Metamorphic Rock > Schist

Nearby scientific data

(1) Lemhi Group.

Economic information

Ore body information

  • Strike NW
    Dip 90 DEG
    Width 30.48M

Controls for ore emplacement

  • Shear Zone

Comments on the geologic information

  • Original alteration entry:
    Local - Silicification
  • Original ore control entry:
    Irregular Shear Zone

Economic information about the deposit and operations

Operation type Underground
Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Blackbird District

Land status

Ownership category Private

Reference information

Bibliographic references

  • Deposit

    Bennett, E. H., 1976, Personal Communication

  • Deposit

    1955 Geochem Calera Mines - Geochem Anomal

  • Deposit

    Mines And Prospects Of The Elk City Quad., IBMG Mines And Prospects Map Series, V E Mitchell, Et Al.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1976 Stull, Susan A.; 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.