Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI42B05SW00044

Record: MDI42B05SW00044

General

Mineral Record Identification
Record Name(s) Pileggi Iron Formation Showing - 1942, Pileggi Claim 36393 - 1942
Related Record Type Simple
Related Record(s)
Record Status Occurrence
Date Created 2001-May-28
Date Last Modified 2022-Jul-15
Created By
Revised By

Commodities

Primary Commodities: Gold



Location

Township or Area: Stover

Latitude: 48° 20' 27.78"    Longitude: -83° 56' 56.54"

UTM Zone: 17    Easting: 281480   Northing: 5358411    UTM Datum: NAD83

Resident Geologist District: Sault Ste. Marie

NTS Grid: 42B05SW

Point Location Description: Trenches in iron formation

Location Method: Based on Assessment

Access Description: Drive east from the north end of highway 651 along the Renabie Mine access road for approximately 9 km to the junction of a south trending forestry road just east of Lancley Lake. Drive south for approximately 5 km, the trenches can be found on the north side of the access road.



Exploration History

1942: S. Pileggi - trenching, sampling. 1943: Sylvanite Gold Mines Ltd. - sampling, property visit. 1947: Stover Gold Mines Ltd. - property acquisition, mapping. 1975-76: Dome Exploration Ltd. - 1 ddh (498 ft)., airborne geophysics. 1984-86: Conquest Yellowknife Mines Ltd. - mapping, ground geophysics, airborne geophysics.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
Stover 0020-A1/63.3771 42B05SW0085 42B05SW0085
Stover 0026/ 2.6953 42C08SE0004 42C08SE0004
Meath 0019A1 / 2.1725 42C08NE0028 42C08NE0028
Meath 0032 / 2.9036 / W8605-00025 42B05SW5048 42B05SW5048
Stover 0022B1 42B05SW0079 42B05SW0079
WP Stover.1/63.4644 42C08SE0003 42C08SE0003
Stover 0015 42B05SW8661 42B05SW8661

Geology

Province: Superior

Subprovince: Wawa

Terrane: Wawa-Abitibi

Belt: Michipicoten

Geological Age: Neoarchean  



Geology Comments

Dec 07, 2005 (A Wilson) - The Baltimore Lake Deformation Zone (BLDZ) is located in northwestern Stover Township where it is defined by by a 1.2 km wide, SE-trending zone of folding, transposition and shearing. The BLDZ can be traced fro approximately 6 km southeastward across Stover Township. The BLDZ is characterized by rootless isoclinal folds of bedding/schistosity, sinistral and dextral shear folds, transposition and ductile shear zones axial planr to the folds.




Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Ironstone-unsubdivided 1 Host
Intermediate lava flow-unsubdivided 2 Andesitic Sheared Near
Quartz Monzonite 3 Quartz Monzonite Porphyritic Intrudes

Lithology Comments

Aug 19, 2013 (A Wilson) - The iron formation is intruded by narrow porphyry dikes and dioritic masses. Multiple units of iron formation are interbedded with chlorite schist and sheared andesite tuff. The iron formation has been traced for a length of 250 ft and has a width ranging from 8 to 30 feet. The zone strikes N55W and dips vertically.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1PyriteEconomicGangue
2MagnetiteEconomicGangue

Mineralization Comments

Aug 19, 2013 (A Wilson) - The best assay obtained by Pileggi was 0.4 dwt over 1.7 ft. The best assay for samples collected by Sylvanite was 0.8 dwt/t Au. Samples of iron formation intersected by Dome in drilling returned assays of 0.10 dwt over 5 feet and 0.3 dwt/t Au over 3 ft.



Mineral Record Details

Mineral Zones - Size and Shape

Rank: 1       Structure Type: Paleo-Surface

Zone Name: Detour Lake - Rank 1
Shape Length Thickness Depth Strike Dip Plunge Trend Age Reference
Regular 76.2 7.6 305

References

Part - Geology and mineralization in the northern part of Stover Township

Publication Number: ARV51-08.002 Page: 39  Date: 1997

Author: Horwood H.C.

Publisher Name: Ontario Dept. of Mines

Location:


Folio - Stover Township - unpublished GDIF

Publication Number: GDIF Date: 1986

Author: Resident Geologist Staff

Publisher Name: Ontario Geological Survey

Location:


Map - Stover and Brackin townships, Sudbury District

Publication Number: M2380 Scale: 1:31,680    Date: 1977

Author: Bennett G.

Publisher Name: Ontario Geological Survey

Location:


Map - Rennie-Leeson area, District of Sudbury, Ontario

Publication Number: ARM51G Scale: 1:31,680    Date: 1997

Author: Bruce E.L., Horwood H.C.

Publisher Name: Ontario Dept. of Mines

Location:


Map - Geological series, Stover Township, District of Sudbury

Publication Number: P0790 Scale: 1:15,840    Date: 1972

Author: Bennett G., Dupuis C.P., Elmhirst F., Andrews M.D.

Publisher Name: Ontario Division of Mines

Location:


Map - Chapleau-Foleyet, geological compilation series, Algoma, Cochrane and Sudbury districts

Publication Number: M2221 Scale: 1:253,440    Date: 1976

Author: Thurston P.C., Sage R.P., Siragusa G.M.

Publisher Name: Ontario Division of Mines

Location:


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