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

Thor Lake

Prospect in Northwest Territories, Canada with commodities Beryllium, REE, Niobium (Columbium), Tantalum, Zirconium, Gallium
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. Host and associated rocks
  8. Nearby scientific data
  9. Geologic structures
  10. Economic information about the deposit and operations
  11. Ownership information
  12. Reserves and resources
  13. Links to other databases
  14. Bibliographic references
  15. Reporter information

Geologic information

Identification information

Deposit ID 10023296
MRDS ID I000132
Record type Site
Current site name Thor Lake
Alternate or previous names Includes: S Zone, R Zone, T Zone, Lake Zone, Fluorite Zone

Geographic coordinates

Geographic coordinates: -113.00132, 62.00012 (WGS84)
Relative position APPROXIMATELY 100 KM SE OF YELLOWKNIFE, ABOUT 5 KN NORTH OF THE HEARNE CHANNEL OF GREAT SLAVE LAKE.

Site location context

Political divisions (FIPS codes)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

Geographic areas

Country State
Canada Northwest Territories

Commodities

Commodity Importance
Beryllium Critical Primary
REE Critical Secondary
Niobium (Columbium) Critical Secondary
Tantalum Critical Secondary
Zirconium Critical Secondary
Gallium Critical Secondary

Materials information

Materials Type of material
Acmite Ore
Bastnaesite Ore
Columbite Ore
Phenacite Ore
Pyrite Ore
Sphalerite Ore
Zircon Ore
Albite Gangue
Fluorite Gangue
Magnetite Gangue
Mica Gangue
Quartz Gangue
Riebeckite Gangue
Topaz Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Syenite
    Rock unit name Thor Lake Syenite;Grace Lake Granite
    Rock description Thor Lake Syenite;Grace Lake Granite

Nearby scientific data

(1) -113.00132, 62.00012
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Ene-Trending Faults

Comments on the geologic information

  • DEPOSITS ARE PART OF THE BLACHFORD LAKE ALKALINE COMPLEX.

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic
Deposit size Large
Significant No

Ownership information

  • Type Owner
    Owner Highwood Resources Ltd.

Reserves and resources

  • Type In-situ
    Estimate year 1990
    Measured 1630000000mt ore
    Total resources 65000000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Beryllium Beo 0.86 wt-pct Beryllium Major 1990
    REE REE 1.7 wt-pct REE Minor 1990
    Niobium (Columbium) Nb 0.4 wt-pct Niobium (Columbium) Minor 1990
    Tantalum Ta 0.3 wt-pct Tantalum Minor 1990
    Zirconium Zr 3.5 wt-pct Zirconium Minor 1990

Comments on development

  • MILL$: 750,000 ; ECON.COM: IN 1989, HECLA MINING CO. INVESTED $600,000 TO COMPLETE FEASIBILITY STUDY. HECLA WILL ACQUIRE A 50% INTEREST IN A JOINT VENTURE WITH HIGHWOOD BY BRINGING THE PROJECT TO COMMERCIAL PRODUCTION. IN 1989, A PILOT PLANT TO CONVERT PHENACITE CONCENTRATE TO BE(OH)2 WAS COMPLETED AT LAKEFIELD RESEARCH IN ONTARIO. A SECOND PLANT WAS SUCCESSFULLY TESTED FOR PHENACITE FLOTATION. THE INITIAL ENVIRONMENTAL EVALUATION WAS REPORTED ALMOST COMPLETE IN 1989. PRODUCTION IS ENVISIONED FOR 1991.

Reference information

Bibliographic references

  • Deposit

    DUCKWORTH, DAVID, 1990, BERYLLIUM, IN SPECIALTY METALS: METALS & MINERALS ANNUAL REVIEW, P. 77-78.

  • Deposit

    TRUEMAN, D.L., PEDERSEN, J.C., DE ST. JORRE, L., AND SMITH, D.G.W., 1985, THE THOR LAKE, N.W.T. RARE-METAL DEPOSITS, IN TAYLOR, R.P., ED., GRANITE-RELATED MINERAL DEPOSITS: GEOLOGY, PETROGENESIS AND TECTONIC SETTING: HALIFAX, NOVA SCOTIA, CANADA, 15-17 SEPTEMBER, 1985, CIM CONFERENCE, P. 279-284.

  • Other Database

    CIMRI

  • Reserve-Resource

    TRUEMAN AND OTHERS, 1985.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-SEP-1990 Orris, Greta J. 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