Thor Lake Property

Occurrence in Northwest Territories, Canada with commodities Beryllium, Niobium (Columbium), REE, Zirconium, Tantalum, Gallium, Thorium

Sections on this page

Identification information
Geographic coordinates
Site location context
Geographic areas
Commodities
Materials information
Alteration
Host and associated rocks
Nearby scientific data
Ore body information
Economic information about the deposit and operations
Mining district
Ownership information
Reserves and resources
Workings at the site
Links to other databases
Bibliographic references
General comments
Reporter information

Geologic information

Identification information

Deposit ID	10085037
MRDS ID	W700474
Record type	Site
Current site name	Thor Lake Property
Alternate or previous names	Thor Lake T-Zone

Geographic coordinates

Geographic coordinates:	-112.59438, 62.1154 (WGS84)
Relative position	100 KM SE OF YELLOWKNIFE, NWT; 5 KM N OF 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

Comments on the location information

DIDN'T SEE TOPO MAP OF AREA

Commodities

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

Materials information

Materials	Type of material
Bastnaesite	Ore
Bertrandite	Ore
Columbite	Ore
Phenacite	Ore
Xenotime	Ore
Albite	Gangue
Chlorite	Gangue
Fluorite	Gangue
Magnetite	Gangue
Microcline	Gangue
Quartz	Gangue

Alteration

(Local) Many Zones Of Alteration Within The Ore Zone

Host and associated rocks

Host or associated

Associated

Rock type

Plutonic Rock > Granitoid > Granite > Peralkaline Granite

Stratigraphic age (youngest)	Neoarchean

Host or associated Host

Rock type Plutonic Rock > Granitoid > Syenite

Host or associated	Host
Rock type	Plutonic Rock > Granitoid > Syenite

Nearby scientific data

(1)	-112.59438, 62.1154	ListMap

Economic information

Ore body information

General form NORTH T-ZONE CONSISTS OF ZONES THAT ARE IN THE FORM OF A SERIES OF STACKED SAUCERS IN 4 ZONES OF 15 LITHOLOGIES

Width 275M

Depth to bottom 100M
General form NORTH T-ZONE CONSISTS OF ZONES THAT ARE IN THE FORM OF A SERIES OF STACKED SAUCERS IN 4 ZONES OF 15 LITHOLOGIES
General form NORTH T-ZONE CONSISTS OF ZONES THAT ARE IN THE FORM OF A SERIES OF STACKED SAUCERS IN 4 ZONES OF 15 LITHOLOGIES

General form	NORTH T-ZONE CONSISTS OF ZONES THAT ARE IN THE FORM OF A SERIES OF STACKED SAUCERS IN 4 ZONES OF 15 LITHOLOGIES
Width	275M
Depth to bottom	100M

General form	NORTH T-ZONE CONSISTS OF ZONES THAT ARE IN THE FORM OF A SERIES OF STACKED SAUCERS IN 4 ZONES OF 15 LITHOLOGIES

General form	NORTH T-ZONE CONSISTS OF ZONES THAT ARE IN THE FORM OF A SERIES OF STACKED SAUCERS IN 4 ZONES OF 15 LITHOLOGIES

Comments on the ore body information

Orebody is in an outcrop

Comments on the geologic information

BLATCHFORD LK COMPLEX INTRUDES YELLOWKNIFE SUPERGROUP(ARCHEAN); GRACE LAKE GRANITE, MAIN PHASE OF BLATCHFORD LAKE COMPLEX, IS SUB-CIRCULAR BODY 20 KM ACROSS WITH THOR LAKE SYENITE AT CENTER 7 KM ACROSS.

Economic information about the deposit and operations

Development status	Occurrence
Commodity type	Metallic
Significant	No
Discovery year	1970
Discoverer	Radioactive Anomaly Staked 1970, Dropped; Staked By Highwood Res 1976 For "Uranium"; 1983 Be Deposit Found By Highwood Resources

Mining district

District name	Thor Lake

Ownership information

Type Operator

Owner Highwood Resources Ltd.
Type Owner

Owner Highwood Resources Ltd. - Hecla

Type	Operator
Owner	Highwood Resources Ltd.

Type	Owner
Owner	Highwood Resources Ltd. - Hecla

Comments on the production information

750 MT BULK SAMPLE (1985)

Reserves and resources

Type In-situ

Estimate year 1990

Total resources 16000000mt ore

Commodity Subtype Grade units Group Importance Year

Beryllium Beo 0.85 wt-pct Beryllium Major 1990
Type In-situ

Estimate year 1990

Total resources 435000000mt ore

Commodity Subtype Grade units Group Importance Year

Beryllium Beo 1.4 wt-pct Beryllium Major 1990

Workings at the site

Type of workings Underground

Length 457.2M

Overall depth 76.2M

Overall length 457.2M

Type of workings	Underground
Length	457.2M
Overall depth	76.2M
Overall length	457.2M

Comments on the workings information

DECLINE IN NORTH T-ZONE TO PROVIDE 300 TON COMPOSITE SAMPLE FOR PILOT STUDIES

Comments on development

DECLINE INTO T-ZONE DEPOSIT COMPLETED FOR PILOT STUDIES, ALLOWED TO FLOOD

Reference information

Links to other databases

Agency	Database name	Acronym	Record ID	Notes
USGS	Mineral Resources Data System	MRDS	W700474

Bibliographic references

Deposit

DAVIDSON,A., 1978, THE BLATCHFORD LAKE INTRUSIVE SUITE: AN APHEBIAN ALKALINE PLUTONIC COMPLEX IN THE SLAVE PROVINCE, NORTHWEST TERRITORIES: GEOLOGICAL SURVEY OF CANADA PAPER 78-1A, P. 119-127.
Deposit

TRUEMAN, D. L., 1984, GEOLOGY OF THE THOR LAKE BERYLLIUM DEPOSITS: AN UPDATE: CONTRIBUTIONS TO THE GEOLOGY OF THE NORTHWEST TERRITORIES; V. 1, P. 115-120.
Deposit

CERNY, PETR, AND TRUEMAN, D. L., 1985, POLYLITHIONITE FROM THE RARE-METAL DEPOSITS OF THE BLATCHFORD LAKE ALKALINE COMPLEX, N. W. T., CANADA. AMERICAN MINERALOGIST, V. 70, P. 1127-1134.
Deposit

CORE SHED DISPLAY APPENDIX, 1990, VIII SYMPOSIUM, INTERNATIONAL ASSOCIATION ON THE GENESIS OF ORE DEPOSITS, OTTAWA, CANADA.
Production

CORE SHED DISPLAY APPENDIX, 1990.

General comments

Subject category	Comment text
Deposit	T-ZONE CONSISTS OF 15 COMPONENT LITHOLOGIES FORMING CONCENTRIC, SUBHORIZONTAL SHELLS GROUPED INTO 4 ZONES.OVERALL DESCRIPTION: 5 ZONES OF MINERALIZATION; R-, S-, T-, LAKE-, AND FLUORITE ZONES. NORTH T-ZONE: RICHEST BE MINERALIZATION, HIGHEST Y, NB-CURRENTLY BEING EVALUATED BY PILOT PLANT. LAKE ZONE: ZR ENRICHMENT, TA ENRICHMENT REL. TO NB, ENRICHED LREE, Y ENRICHMENT-ALLANITE, BASTNAESITE, FERROCOLUMBITE; NEPHELINE SYENITE BENEATH LAKE ZONE.
Deposit	124 DD HOLES IN T-ZONE: 1.6 M TONS BEO ORE GRADING 0.85% BEO + 0.26% Y2O3; 29 DD HOLES IN LAKE-ZONE: 64 M TONS GRADING 0.03% TA, 0.4% NB, 1.7% REE, 3.5% ZR ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Subject category

Comment text

Deposit

T-ZONE CONSISTS OF 15 COMPONENT LITHOLOGIES FORMING CONCENTRIC, SUBHORIZONTAL SHELLS GROUPED INTO 4 ZONES.OVERALL DESCRIPTION: 5 ZONES OF MINERALIZATION; R-, S-, T-, LAKE-, AND FLUORITE ZONES. NORTH T-ZONE: RICHEST BE MINERALIZATION, HIGHEST Y, NB-CURRENTLY BEING EVALUATED BY PILOT PLANT. LAKE ZONE: ZR ENRICHMENT, TA ENRICHMENT REL. TO NB, ENRICHED LREE, Y ENRICHMENT-ALLANITE, BASTNAESITE, FERROCOLUMBITE; NEPHELINE SYENITE BENEATH LAKE ZONE.

Deposit

124 DD HOLES IN T-ZONE: 1.6 M TONS BEO ORE GRADING 0.85% BEO + 0.26% Y2O3; 29 DD HOLES IN LAKE-ZONE: 64 M TONS GRADING 0.03% TA, 0.4% NB, 1.7% REE, 3.5% ZR ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Reporter information

Type	Date	Name	Affiliation	Comment
Reporter	01-AUG-1988	Armbrustmacher, Theodore J. (Lindsey, David A.)	U.S. Geological Survey
Updater	01-SEP-1990	Bolm, Karen S.	U.S. Geological Survey

Beyond USGS

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

Thor Lake Property

Geologic information

Identification information

Geographic coordinates

Site location context

Geographic areas

Comments on the location information

Commodities

Materials information

Alteration

Host and associated rocks

Nearby scientific data

Economic information

Ore body information

Comments on the ore body information

Comments on the geologic information

Economic information about the deposit and operations

Mining district

Ownership information

Comments on the production information

Reserves and resources

Workings at the site

Comments on the workings information

Comments on development

Reference information

Links to other databases

Bibliographic references

Deposit

Deposit

Deposit

Deposit

Production

General comments

Reporter information

Beyond USGS

Maps centered on this site