Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI000000000228

Record: MDI000000000228

General

Mineral Record Identification
Record Name(s)	L1 Zone - 2002
Related Record Type
Related Record(s)
Record Status	Occurrence
Date Created	2007-Jan-16
Date Last Modified	2023-Jul-04
Created By
Revised By

Commodities

Primary Commodities: Gold, Silver, Copper, Antimony

Secondary Commodities: Zinc, Lead

Location

Township or Area: Wesleyan Lake Area

Latitude: 51° 11' 13.91" Longitude: -91° 34' 4.58"

UTM Zone: 15 Easting: 600079.999 Northing: 5671617 UTM Datum: NAD83

Resident Geologist District: Thunder Bay North

NTS Grid: 52O04NE

Point Location Description: Location from assessment file map (Nelson 2002).

Location Method: Data Compilation

Assessment Work on File

Assessment Work on File
Office File Number	Online Assessment File Identifier	Online Assessment File Directory
2.16627	52O03NW0001	52O03NW0001
2.27635	52O03NW2005	52O03NW2005

Geology

Province: Superior

Subprovince: Uchi

Terrane: North Caribou

Domain: Uchi

Belt: Meen-Dempster

Geological Age: Archean

Geology Comments

Jan 16, 2007 (Mark Puumala) - The geology in the area of this occurrence is described in MDI52O04NE00019.

Lithology

Lithology Data
Rock Type	Rank	Composition	Texture	Relationship
Felsic lava flow-unsubdivided	1

Mineralization

Mineralization and Alteration
Rank	Mineral Name	Class	Economic Mineral Type	Alteration Mineral Type	Alteration Ranking
1	Pyrite	Economic	Ore
2	Chalcopyrite	Economic	Ore
3	Tetrahedrite	Economic	Ore
	Carbonate	Alteration		Carbonatization	1
	Sericite	Alteration		Sericitization	2
	Biotite	Alteration		Biotitic	3
	Talc	Alteration			4

Mineralization Comments

Jan 16, 2007 (Mark Puumala) - The L1 Zone is a mineralized shear zone hosted in granitic rocks (Nelson 2002). This structure is approximately 40 cm wide, dips sub-vertically and strikes 090 to 110. The shear zone contains quartz veins and sulphide mineralization (pyrite, chalcopyrite and tetrahedrite) as well as biotite, sericite, carbonate and talc alteration. The mineralized zone has been traced over a strike-length of approximately 700 m. Nelson (2002) reports that the most significant assays from this zone include 6.7 g/t Au and 297 g/t Ag. Anomalous levels of Sb (0.305%), Cu (0.671%), Zn (0.314%) and Pb (0.019%) were also reported by Parker et al. (1995).

Mineral Record Details

Classification
Rank	Classification
1	Vein (Polymetallic)

Characteristics
Rank	Characteristic
1	Sheared
2	Vein

References

MonoMap - Geology of the Slate Falls area, District of Kenora (Patricia Portion)

Publication Number: R232 Date: 1985

Author: Wallace H.

Publisher Name: Ontario Geological Survey

Location:

Compend - Summary of Field Work and Other Activities, 2006

Publication Number: OFR6192 Date: 2006

Author: Baker C.L., Debicki E.J., Kelly R.I., Rowell D.J., Mason J.K., Ayer J.A., Easton R.M., Stott G.M.

Publisher Name: Ontario Geological Survey

Location:

Report an Error

We are continuously updating our assessment file / technical report information. If you notice errors in the data, please contact us.

Terms of Use

Please review our Terms of Use agreement for this data product.

Ministry Contact Information

For detailed information regarding this mineral record please contact the Thunder Bay North Resident Geologist District Office