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

Chrome Lake Ni-Cu

Occurrence in Stillwater county in Montana, United States with commodities Nickel, Copper, Cobalt, PGE, Silver, Gold
Map
XML
JSON
KML
B
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. Mineral occurrence model information
  9. Nearby scientific data
  10. Geologic structures
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Links to other databases
  16. Bibliographic references
  17. Reporter information

Geologic information

Identification information

Deposit ID 10056249
MRDS ID SP01082
Record type Site
Current site name Chrome Lake Ni-Cu

Geographic coordinates

Geographic coordinates: -109.79746, 45.35159 (WGS84)
Elevation 2560
Relative position LESS THAN 0.1 MI NORTH OF CHROME LAKE

Site location context

Political divisions (FIPS codes)

Stillwater(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mount Wood(quadrangle 1:24,000 scale)

Red Lodge(quadrangle 1:100,000 scale)

Billings(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Stillwater(hydrologic unit)

Upper Yellowstone(hydrologic accounting unit)

Upper Yellowstone(hydrologic subregion)

Missouri(hydrologic region)

Federal lands

Custer Gallatin 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 Montana Stillwater

Comments on the location information

  • IN CUSTER NATIONAL FOREST. UNSURVEYED

Commodities

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

Comments on the commodity information

  • SEE PAGE (1979) FOR GENERAL DESCRIPTION OF BASAL SERIES MINERALIZATION.

Materials information

Materials Type of material
Chalcopyrite Ore
Pentlandite Ore
Pyrrhotite Ore
Magnetite Gangue
Plagioclase Gangue

Alteration

  • (Local) None Related To Ore-Forming Process

Analytical data

Result 52 PPB PT, 41 PPB PD, 2.7 PPB RH MAX. IN SURFACE SAMPLES

Mineral occurrence model information

Model code 1
USGS model code 1
Deposit model name Stillwater Ni-Cu

Nearby scientific data

(1) -109.79746, 45.35159
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description The Stillwater Complex Is Exposed Along The Northern Margin Of The Beartooth Uplift, One Of Several Laramide Basement-Cored Ranges That Make Up The Rocky Mountain Foreland Of South-Central Montana (Foose And Others, 1961: Kulik And Schmidt, 1988)

Controls for ore emplacement

  • Immiscible Sulfide Liquid Enriched In Ni And Cu Exsolved From Mafic Silicate Magma And Accumulated Near Lower Contact Of The Stillwater Complex. Assimilation Of Sulfur From Rocks Adjacent To The Stillwater Complex May Have Led To The Exsolution Of The Sulfide Liquid (Zientek And Ripley, 1990)

Comments on the geologic information

  • AGE OF STILLWATER COMPLEX IS 2,705 +/- 4 MA BASED ON U-PB SYSTEMATICS ON ZIRCON-BADDELEYITE (PREMO AND OTHERS, 1990)

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Mining district

District name In Stillwater Complex

Land status

Ownership category National Forest

Reference information

Bibliographic references

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1993 Peterson, Jocelyn A. 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