Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI31C11SW00174

Record: MDI31C11SW00174

General

Mineral Record Identification
Record Name(s) Thompson-Shewman - 1993
Related Record Type Simple
Related Record(s)
Record Status Discretionary Occurrence
Date Created 1993-Apr-15
Date Last Modified 2024-Aug-01
Created By
Revised By

Commodities

Primary Commodities: Gold



Location

Township or Area: Madoc, Madoc, Madoc

Latitude: 44° 35' 54.01"    Longitude: -77° 26' 16.03"

UTM Zone: 18    Easting: 306526.734   Northing: 4941222.97    UTM Datum: NAD83

Resident Geologist District: Southern Ontario

NTS Grid: 31C11SW

Point Location Description: Point 2.0 km NW of Queensborough.

Location Method: Conversion from MDI



Exploration History

2000: Till sampling, and prospecting for gold on the J.S. Thompson property conducted by Rio Algom.


Geology

Province: Grenville

Subprovince: Central Metasedimentary Belt

Domain: Grimsthorpe

Geological Age: Mesoproterozoic  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Mafic lava flow-unsubdivided 1 Rusty, weathered surface
Felsic lava flow-unsubdivided 2 Rhyolitic?
Schist-Unsubdivided 3 Biotite schist-gneiss

Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1PyriteEconomic
2OcherEconomic
3QuartzEconomic

Mineralization Comments

Dec 07, 2005 (D Laidlaw) - Till sample GR-200 was found to contain 37 grains of gold. One rock sample RK-15 returned values of 209 ppb gold, 120 ppb arsenic and 310 ppm copper.



Mineral Record Details

References

File - J.S Thomson Property Data Report

Publication Number: Assess. File Date: 1991

Author:

Publisher Name:

Location: Tweed RGP


Publication - Report of progress from 1866 to 1869

Publication Number: MDI31C11SW00174 Page: 17  Date: 1870

Author:

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/222878


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For detailed information regarding this mineral record please contact the Southern Ontario Resident Geologist District Office