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  3. Mineral Resource Data System (MRDS)

Cassiar

Producer in British Columbia, Canada with commodity Asbestos
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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. Host and associated rocks
  10. Nearby scientific data
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Ownership information
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10084820
MRDS ID W700032
Record type Site
Current site name Cassiar

Geographic coordinates

Geographic coordinates: -129.82135, 59.3179 (WGS84)

Site location context

Political divisions (FIPS codes)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

Geographic areas

Country State
Canada British Columbia

Commodities

Commodity Importance
Asbestos Primary

Materials information

Materials Type of material
Chrysotile Ore
Antigorite Gangue
Brucite Gangue
Jade Gangue
Magnetite Gangue
Talc Gangue
Tremolite Gangue

Alteration

  • (Local) Serpentinization

Mineral occurrence model information

Model code 18
USGS model code 8d
Deposit model name Serpentine-hosted asbestos

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Serpentinite
    Rock unit name Sylvester Group
    Rock description Sylvester Group
    Stratigraphic age (youngest) Mississippian
    Stratigraphic age (youngest) Mississippian
    Stratigraphic age (youngest) Mississippian

Nearby scientific data

(1) -129.82135, 59.3179
ListMap

Economic information

Ore body information

  • General form LENTICULAR
    Length 457.2M
    Width 213.36M

Comments on the geologic information

  • TO WEST THE SILL IS IN CONTACT WITH METAMORPHOSED SEDIMENTARY ROCKS, TO THE EAST WITH INTERLAYERED METASEDIMENTS AND VOLCANICS.

Economic information about the deposit and operations

Development status Producer
Commodity type Non-metallic
Significant No

Ownership information

  • Type Operator
    Owner Brinco Mining Ltd.

Reference information

Bibliographic references

  • Deposit

    BRITISH COLUMBIA MINISTRY OF ENERGY, MINES AND PETROLEUM RESOURCES

  • Deposit

    HARBEN, P.W., AND BATES, R.L., 1984, ASBESTOS, IN GEOLOGY OF THE NONMETALLICS: NEW YORK, METAL BULLETIN INC., P. 324-335.

  • Deposit

    CIM BULLETIN, APRIL, 1977.

  • Deposit

    ASBESTOS, 1981, V. 62, NO. 7.

  • Deposit

    ASBESTOS, 1983, V. 64, NO. 7.

  • Reserve-Resource

    ESTIMATE OF G. ORRIS (1984), BASED ON PUBLISHED INFORMATION.

General comments

Subject category Comment text
Deposit MEASUREMENTS ARE APPROXIMATE. FIBER IS CROSS FIBER. THE OREBODY IS LENTICULAR AND ROUGHLY ELLIPTICAL IN SHAPE (ELONGATED IN A NORTHERLY DIRECTION).

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1987 Orris, Greta J. U.S. Geological Survey

Beyond USGS

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

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