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Black Pine Project

Past Producer in Lemhi county in Idaho, United States with commodities Cobalt, Copper, Gold, Silver, Nickel
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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. Alteration
  9. Mineral occurrence model information
  10. Host and associated rocks
  11. Nearby scientific data
  12. Geologic structures
  13. Ore body information
  14. Controls for ore emplacement
  15. Economic information about the deposit and operations
  16. Mining district
  17. Mineral rights holdings
  18. Land status
  19. Ownership information
  20. Reserves and resources
  21. Workings at the site
  22. Links to other databases
  23. Bibliographic references
  24. General comments
  25. Reporter information

Geologic information

Identification information

Deposit ID 10119962
MRDS ID W000723
MAS/MILS ID 0160590104
Record type Site
Current site name Black Pine Project
Alternate or previous names Blackpine Mine, Shulenberger Prospect, Cobalt Nos. 1, 2, 5, 6, 10, 15, and 16\nCobalt Nos. 1, 2, 5, 6, 10, 15, and 16

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -114.2038, 45.04685 (WGS84)
Elevation 2286
Location accuracy 100(meters)
Relative position 4 MI. SE 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

Cobalt(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 020 N 019 E 22 Idaho

Comments on the location information

  • NEAR HEADWATERS OF N. BRANCH OF COPPER CREEK

Commodities

Commodity Importance
Cobalt Critical Primary
Copper Primary
Gold Secondary
Silver Secondary
Nickel Critical Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Bornite Ore
Chalcocite Ore
Covellite Ore
Malachite Ore
Pyrite Gangue
Limonite Gangue

Alteration

  • (Local) SERICITIC
  • (Local) Chloritization
  • (Local) Oxidation

Analytical data

Result THERE ARE HIGH GRADE BANDS OF SOLID CHALCOPYRITE IN VEIN
Result MODERATE TONNAGE OF 6 % CU ORE
Result CO GENERALLY LESS THAN 0.1%. BUT LOCALLY AS MUCH AS 2.7%

Mineral occurrence model information

Model code 102
USGS model code 24d
Deposit model name Blackbird Co-Cu

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Metamorphic Rock > Phyllite
    Rock unit name Belt Supergroup

Nearby scientific data

Main Entrance (1) -114.2038, 45.04685
ListMap

Economic information

Geologic structures

Type of structure Local
Structure name Reverse Faults
Type of structure Local
Structure name Syncline \n
Type of structure Local
Structure name Bedding

Ore body information

  • General form SHEAR ZONE
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 SHEAR ZONE
    Shape of Orebody #1 IRREGULAR
    Type of Orebody #2 REPLACEMENT
    Primary mode of Origin HYDROTHERMAL
    Secondary mode of Origin METAMORPHISM
    Primary Ore Control FAULTING
    Secondary Ore Control FRACTURING
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 SERICITIC
    Date of Last Modification 970102
  • General form IRREGULAR VEINLETS, STRINGERS, PODS
    Strike N 50 DEG W
    Dip 55 DEG NE
    Thickness 0.3M
    Length 1524M
    Width 45.72M

Controls for ore emplacement

  • Fault Zones
  • Fissures

Comments on the geologic information

  • ORE IS BOTH CU-CO OXIDES AND CO-CU-AU SULFIDES.
  • BEDDING TRENDS NW AND DIPS NE ; GEOL.DESC: 2 VEIN ZONES:(A)CHALCOPYRITE-PYRITE ON 40-90 FT. NORTHWEST-STRIKING, NORTHEAST DIPPING SHEAR ZONE(NO COBALT);(B)QUARTZ VEIN CARRYING COBALTIAN ARSENOPYRITE 140 FT. NORTHEAST OF (A) ZONE; COUNTRY ROCK HIGHLY FOLDED.

Economic information about the deposit and operations

Operation type Surface
Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant Yes
Mining method Open Pit
Plant type Leach
Plant subcategory Hydromet
Milling method Leach-Solvent-Extract-Electrowin

Comments on exploration

  • THE DMEA HAS DONE A GOOD DEAL OF DEVELOPMENT WORK AT THIS PROPERTY. THE PROGRAM RESULTED IN THE DISCOVERY OF 29,800 ST OF INDICATED ORE WITH AN AVERAGE GRADE OF 6.1% COPPER AND 2,200 ST OF INFERRED ORE WITH AN AVERAGE GRADE OF 5.4% CU. IN 1994 EXPLORATION 5 OF 6 ZONES WERE TESTED; PROGRAM DISCOVER- ED 9.2 FT OF 1.249% CO AND 0.409 OZ AU/ST (14.02 G/MT).

Mining district

District name Blackbird Mining District

Mineral rights holdings

Type of mineral rights Located Claim

Land status

Ownership category National Forest
Area name Salmon National Forest

Ownership information

  • Type Owner-Operator
    Owner Formation Metals (Formation Capital Corp.)
    Interest 100
    Home office Canada
    Year 1992
  • Type Operator
    Owner Montana Coal And Iron Co.
    Home office Montana
    Year 1960

Comments on the production information

  • ITEM 1 WAS PROBABLY A TEST SHIPMENT (This statement doesn't make sense. No production was given in old MRDS record, or at least was not copied to new MRDS record.)

Reserves and resources

  • Type In-situ
    Estimate year 1993
    Demonstrated 308000mt ore
    Total resources 308000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 3.5 wt-pct Copper Major 1993
  • Type In-situ
    Estimate year 1995
    Total resources 580000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 3.5 wt-pct Copper Major 1995
  • Type In-situ
    Estimate year 1996
    Total resources 1814000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 4 wt-pct Copper Major 1996
  • Type In-situ
    Estimate year 1996
    Total resources 9072000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 0.8 wt-pct Copper Major 1996

Workings at the site

  • Type of workings Surface/Underground
    Name of workings Open Pit and tunnels
    Length 1463.04M
    Overall depth 70.1M

Comments on the workings information

  • 5 ADITS TRENDING NW WITH DRIFTS TO SW; NUMEROUS TRENCHES

Comments on other economic factors

  • A NEARLY COMPLETE MILL FACILITY IS STILL LOCATED ON THE PROPERTY.
  • OLD UNDERGROUND MINE WORKING WILL BE OPENED UP, MAPPED, SAMPLED TO CONFIRM RESERVES AND DEFINE PRESENCE OF HIGH GRADE COBALT.
  • MINE WAS LAST MINED IN THE 1960; THEIR ARE OVER 4500 FT OF UNDERGROUND WORKINGS.

Comments on development

  • FLOTATION MILL IN 1956 ; ECON.COM: HEAVY GROUND ALONG MINERALIZED SHEAR ZONES REQUIRES MUCH TIMBERING (SIX MILLSITES BEING VALIDLY USED IN CONJUNCTION WITH THESE CLAIMS - BLACK PINE, CROSS CUT COPPER, NO. 1 FRACTION, BIG COBALT, BIG COBALT NOS 1 AND 2)

Reference information

Bibliographic references

  • Reserve-Resource

    THE NORTHERN MINER, 11-1-93, P.1, 10.

  • Economic Factors

    Forest Service Mineral EXAM 1958 PLUM

  • Deposit

    MITCHELL, V.E., ET AL, 1982, ELK CITY QUAD: Idaho Bureau of Mines and Geology MINES AND PROSPECT 1982 MAP SERIES. scale 1:250,000.

  • Reserve-Resource

    RANDOL MINING DIRECTORY, 1994/95, U.S. MINES & MINING COMPANIES, P. 267.

  • Reserve-Resource

    RANDOL MINING DIRECTORY, 1996/97, U.S. MINES & MINING COMPANIES, P. 194.

  • Reserve-Resource

    ITEM 1, UNPUBLISHED COBALT REPORT; ITEM 2, DMEA FILES

  • Deposit

    SHOCKEY, P.N., 1957, RECONNAISSANCE GEOLOGY OF THE LEESBURG QUADRANGLE, LEMHI COUNTY, IDAHO: IDAHO BUREAU OF MINES AND GEOLOGY PAMPHLET 113, 42 P.

  • Deposit

    THE NORTHERN MINER, 4-12-93, P.3.

  • Deposit

    THE NORTHERN MINER, 6-21, 93, P.16.

  • Deposit

    MINING RECORD, 8-10-94, P.3.

  • Deposit

    INTERATIONAL MINING NEWS, 9-28-94, P1.

  • Deposit

    JONES, R.W., 1959, BLACKPINE: IDAHO BUREAU OF MINES AND GEOLOGY OPEN-FILE REPT.

General comments

Subject category Comment text
Deposit 2 VEINS

Reporter information

Type Date Name Affiliation Comment
Reporter 02-JAN-97 Buckingham, David A. U.S. Bureau of Mines
Reporter 01-JUL-72 Coury, Anny B. U.S. Geological Survey
Updater 01-SEP-76 Duncan, Daniel G. U.S. Geological Survey
Updater 01-FEB-10 Causey, J. Douglas U.S. Geological Survey Combined information from old MRDS records W000723 , FS00611 and MAS/MILS record 0160590738.
Reporter 01-JUN-76 Meier, M. Lorrie 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