Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI42C07SW00023

Record: MDI42C07SW00023

General

Mineral Record Identification
Record Name(s)	North Syenite Lake Shear - 1990
Related Record Type	Simple
Related Record(s)
Record Status	Discretionary Occurrence
Date Created	2000-Dec-07
Date Last Modified	2022-Sep-09
Created By
Revised By

Commodities

Primary Commodities: Gold

Location

Township or Area: Knicely

Latitude: 48° 15' 30.96" Longitude: -84° 59' 9.76"

UTM Zone: 16 Easting: 649476.2 Northing: 5347003.85 UTM Datum: NAD83

Resident Geologist District: Sault Ste. Marie

NTS Grid: 42C07SW

Point Location Description: Shear zone on north side of Syenite Lake

Location Method: Data Compilation

Access Description: The easiest access to the site is by overland traverse from Perry Bay of Kabenung Lake.

Exploration History

1938: O'Brien Gold Mines - mapping, sampling. 1953: Algoma Ore Properties - airborne geophysics. 1989-90: Corona Corporation: mapping, sampling.

Assessment Work on File

Assessment Work on File
Office File Number	Online Assessment File Identifier	Online Assessment File Directory
WP Corbiere-14	42C06SE0002	42C06SE0002
Keating-0010-A1	42C06SE0018	42C06SE0018

Geology

Province: Superior

Subprovince: Wawa

Terrane: Wawa-Abitibi

Belt: Michipicoten

Geological Age: Archean

Lithology

Lithology Data
Rock Type	Rank	Composition	Texture	Relationship
Intermediate Tuff	1		Tuff, Sheared	Host
Gabbro	2	Gabbro	Sheared	Host
Ironstone-unsubdivided	3		Sheared	Near

Lithology Comments

Dec 07, 2005 (A Wilson) - The shear zone occurs at the contact between intermediate metavolcanics, gabbro and iron formation. The shear zone is characterized by chlorite-carbonate schists and quartz-ankerite veins. These veins are up to 30 cm in width. Barren quartz veins are also present, but are highly disrupted.

Mineralization

Mineralization and Alteration
Rank	Mineral Name	Class	Economic Mineral Type	Alteration Mineral Type	Alteration Ranking	Alteration Intensity	Alteration Style
1	Pyrite	Economic	Gangue
2	Chalcopyrite	Economic	Gangue
	Ankerite	Alteration		Carbonatization	1	Weak	Replacement
	Chlorite	Alteration		Chloritic	2	Weak	Replacement

Mineral Record Details

Mineral Zones - Size and Shape

Rank: 1 Structure Type: Shear

Zone Name: Detour Lake - Rank 1
Shape	Length	Thickness	Depth	Strike	Dip	Plunge	Trend	Age	Reference
Unknown	2500	5		45

References

Map - Precambrian Geology, Knicely Township

Publication Number: OFM0220 Scale: 1:15,840 Date: 1993

Author: Sage R.P.

Publisher Name: Ontario Geological Survey

Location:

MonoMap - Geology of Killins, Knicely and Lalibert Townships, District of Algoma

Publication Number: OFR5589 Date: 1993

Author: Sage R.P.

Publisher Name: Ontario Geological Survey

Location:

Map - University River, Algoma and Thunder Bay districts

Publication Number: M2333 Scale: 1:63,360 Date: 1976

Author: Bennett G., Thurston P.C., Giguere J.F.

Publisher Name: Ontario Division of Mines

Location:

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Ministry Contact Information

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