Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI41J07SE00014

Record: MDI41J07SE00014

General

Mineral Record Identification
Record Name(s) Twin Lake Showing - 1970, Esten Property - 1957
Related Record Type Simple
Related Record(s)
Record Status Prospect
Date Created 1991-Sep-01
Date Last Modified 2022-Oct-13
Created By
Revised By

Commodities

Primary Commodities: Copper



Location

Township or Area: Esten

Latitude: 46° 17' 59.52"    Longitude: -82° 37' 20.92"

UTM Zone: 17    Easting: 375048.998   Northing: 5128645    UTM Datum: NAD83

Resident Geologist District: Sault Ste. Marie

NTS Grid: 41J07SE

Point Location Description: approximate

Location Method: Based on Assessment



Exploration History

The property was trenched and drilled in 1956 by FEderal Kirkland Mining Co. where 29 diamond drill holes were completed totalling 9695 feet. A total of 6 diamond drill holes were completed by Esten Exploration Inc., totalling 1922 feet. The area was flown with airboren magnetics by the Geolgoical Survey of Canada-Ontario Department of Mines in 1963, illustrating a strong WNW-trending four kilometre long magnetic anomaly on the map. 2003-05: Gitennes Exploration Inc. - airborne geophysics, IP, prospecting, sampling, mapping, ground geophysics, geochemistry


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
Esten 0010C1 41I07SE0043 41I07SE0043
Esten-0010-B1 41I07SE0042 41I07SE0042
ESTEN 0010A1 41I07SE0041 41I07SE0041
ESTEN 0012 41I07SE0037 41I07SE0037
ESTEN 0011 41I07SE0040 41I07SE0040
Esten 0019 20000001163 20000001163
ESTEN 0014 41I07SE0036 41I07SE0036

Geology

Province: Superior

Subprovince: Abitibi

Terrane: Wawa-Abitibi

Geological Age: Early Precambrian  



Geology Comments

Dec 03, 2010 (A Pace) - The property covers one or more massive to gneissic Archean Felsic intrusive bodies with inclusions of Archean supracrustal rocks, cut by at least 2 generations of diabase dykes.




Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Vein 1 Quartz Host
Granodiorite 2 Gneissic Contains

Lithology Comments

Oct 23, 2009 (A Wilson) - Chalcopyrite occurs in stringers and disseminations in highly silicified schists and breccias within a shear zone. Talc and chloritic schists are found within the sheared zone and within the adjacent rocks which are predominantly granite. The better concentrations of chalcopyrite were obtained within a few hundred feet of the intersection of the main sheared zone and a strong subparallel zone of shearing and silicfication. Metavolcanic rocks altered to chlorite and talc are found within the silicified shear zone.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1ChalcopyriteEconomicOre
1PyriteEconomicGangue

Mineralization Comments

Dec 03, 2010 (A Pace) - The mineralization varies from disseminated to narrow widths of massive sulphides. Chalcopyrite occurs in stringers and disseminations in highly silicified schists and breccias within a strong NW trending sheared zone. Talc and chloritic schists and diabase are present within the sheared zone and within the adjacent rocks, which are predominantly granitic. Drilling completed by Federal Kirkland Mining Co. in 1956 includes: Drill Hole 1: 4.3 feet at 1.10% Cu and 2.5 feet at 1.34% Cu Drill Hole 2: 2.5 feet at 4.67% Cu and 3.2 feet at 1.59% Cu and 3.4 feet at 2.23% Cu and 3.0 feet at 2.23% Cu. Drill Hole 4: 2.9 feet at 1.13% Cu and 2 feet of 1.05% Cu Drill Hole 7: 2.7 feet of 1.70% Cu Drill HOle 8: 2.6 feet of 1.32% Cu and 4.1 feet of 1.03% Cu Drill HOle 9: 5.1 feet of 1.05% Cu and 3.3 feet of 2.23% Cu Drill Hole 11: 1.9 feet of 1.15% Cu Drill hole 20: 5 feet of 1.14% Cu and 4 feet of 1.17% Cu Drill Hole 21: 1.4 feet of 2.68% Cu Drilling completed by Esten Exploration Inc. in 1974 includes: Hole 74-7: 2.5 feet of 2.64% Cu Hole 74-8: 3.8 feet of 2.79% Cu, 5.9 feet of 1.06% Cu, 5.9 feet of 1.12% Cu, 7 feet at 1.42% Cu, 4.2 feet of 1.78% Cu. A large number of good grade intersections were obtained in the drilling over a length of 380 feet and to a depth of 400 feet. An estimate of probable ore is as follows: tons, 76, 900 grading at 1.74% with an average width of 8.04 feet.



Mineral Record Details

Classification
RankClassification            
1 Vein
Characteristics
Rank Characteristic            
1 Sheared

Mineral Zones - Size and Shape

Zone Name: Detour Lake - Rank 1
Shape Length Thickness Depth Strike Dip Plunge Trend Age Reference
Unknown 500 5 75
Reserves or Resources Data
Zone Year Category Tonnes Reference Comments Commodities
Twin Lake Showing 1957 Probable 69763 MDC002. p. 91 76,900 tons @ 1.73% Cu over an average width of 8.04 feet (drill indicated) Copper 1.73 Percent

References

Map - Esten Township, District of Algoma

Publication Number: P0130 Scale: 1:15,840    Date: 1997

Author: Robertson J.A.

Publisher Name: Ontario Dept. of Mines

Location:


Mono - Copper, nickel, lead and zinc deposits of Ontario

Publication Number: MDC012 Page: 23  Date: 1969

Author: Shklanka R.

Publisher Name: Ontario Dept. of Mines

Location:


MonoMap - Geology of the Spragge area, District of Algoma

Publication Number: R076 Page: 87-88  Date: 1970

Author: Robertson J.A.

Publisher Name: Ontario Dept. of Mines

Location:


Map - Sault Ste. Marie-Elliot Lake, geological compilation series, Algoma, Manitoulin and Sudbury districts

Publication Number: M2419 Scale: 1:253,440    Date: 1979

Author: Giblin P.E., Leahy E.J.

Publisher Name: Ontario Geological Survey

Location:


Mono - Copper, nickel, lead and zinc deposits in Ontario (revised to February, 1957)

Publication Number: MDC002 Page: 91  Date: 1957

Author: Thomson J.E., Ferguson S.A., Johnston W.G.Q., Pye E.G., Savage W.S., Thomson R.

Publisher Name: Ontario Dept. of Mines

Location:


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For detailed information regarding this mineral record please contact the Sault Ste. Marie Resident Geologist District Office