Ontario Geological Survey
Permanent Link to this Record:
MDI000000001385
| Record Name(s) | Rawson Island Showing - 2001 |
|---|---|
| Related Record Type | |
| Record Status | Occurrence |
| Date Created | 2012-Mar-19 |
| Date Last Modified | 2022-Jan-05 |
| Created By | A Wilson |
| Revised By | A Wilson |
Primary Commodities: Nickel
Secondary Commodities: Zinc, Copper, Cobalt
Township or Area: Nursey
Latitude: 47° 51' 24.34" Longitude: -81° 20' 35.33"
UTM Zone: 17 Easting: 474332 Northing: 5300436.996 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 41P14NW
Point Location Description: sample
Location Method: Based on Assessment
Access Description: The island is accessible by boat from a boat landing on the northeast arem of Sinclair Lake.
2001-02: R. Annet, L. Salo - trenching, blasting, sampling. 2002: J Tindale - sampling, mapping. 2004: Mustang Minerals Corp. - airborne geophysics
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| T-4791 / 2.24391 | 41P14SW2003 | 41P14SW2003 |
| T-5007 / 2.27949 | 41P14SW2005 | 41P14SW2005 |
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Abitibi
Geological Age: Archean
| Rock Type | Rank | Composition | Texture | Relationship | Ultramafic-Unsubdivided | 1 | Host |
|---|
Mar 20, 2012 (A Wilson) - The host rocks are described as mafic fragmentals cemented by dolomitic carbonate.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 2 | Pyrrhotite | Economic | Ore | ||||
| 1 | Pyrite | Economic | Gangue |
Mar 20, 2012 (A Wilson) - Grab samples collected from a shear zone on Rawson Island assayed: 1633 - 0.35% Zn, 0.08% Cu; 1634 - 2977 ppm Zn, 532 ppm Ni, 1191 ppm Ni, 130 ppm Co; 1635 - +10,000 ppm Zn, 1598 ppm Cu, 1024 ppm Ni, 187 ppm Co. Duplicate samples collected by Sinclair in 2002 assayed: 0.108% Ni, 0.194% Cu and 0.032% Zn (55876); 0.125% Ni, 0.079% cu and 0.024% Zn (55877); and .119% Ni, 0.095% cu and 0.017% Zn (55878). The sulphides are described as irregular bands and erratic concentrations of semi- to massive pyrite with some pyrrhotite. Silicification in the form of chert and quartz veins appears to accompany the sulphide-rich zones
| Rank | Characteristic |
|---|---|
| 1 | Sheared |
Map - Geological Compilation of the Matachewan Area, Abitibi Greenstone Belt
Publication Number: P3527 Scale: 1:100,000 Date: 2003
Author: Ayer J.A., Trowell N.F., Josey S.D., Nevills M., Valade L.
Publisher Name: Ontario Geological Survey
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For detailed information regarding this mineral record please contact the Timmins Resident Geologist District Office