Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI000000001138

Record: MDI000000001138

General

Mineral Record Identification
Record Name(s) Tremblay-Robert - 2009, Sylvanite Project - 1984
Related Record Type
Related Record(s)
Record Status Occurrence
Date Created 2011-Mar-22
Date Last Modified 2022-Feb-23
Created By
Revised By

Commodities

Primary Commodities: Gold



Location

Township or Area: Cunningham

Latitude: 47° 44' 9.79"    Longitude: -82° 43' 37.71"

UTM Zone: 17    Easting: 370509   Northing: 5288409    UTM Datum: NAD83

Resident Geologist District: Timmins

NTS Grid: 41O10NE

Point Location Description: Trench B, 240 m south of Ridout Lake, Cunningham Township

Location Method: Field Visit with GPS



Exploration History

1984-1985: Noranda Exploration Company Ltd. carried out humus sampling, geological mapping, magnetic and electromagnetic surveys, diamond drilling. 1991: M. Tremblay and K. McDonough completed stripping and prospecting. 1992: Norwin Geological Services completed geological mapping and sampling. 1993-1994: K. McDonough and B. McDonough carried out geological mapping, a ground geophysical survey (VLFEM, magnetometer), trenching, cutting, prospecting, assaying and analyses. 2009: M.A. Tremblay and J. Robert completed trenching, geological mapping, and sampling.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
T-3415 / 2.14652 41O10NE0086 41O10NE0086
T-3415 / 2.15050 41O10NE9212 41O10NE9212
T-3415 / 2.15057 41O10NE9213 41O10NE9213
T-3415 / OP92-114 41O10NE0001 41O10NE0001
T-3415 / OP93-323 41O10NE2001 41O10NE2001
T-2854 / 2.9170 41O10NE0019 41O10NE0019
T-2854 / 2.8386 41O10NE0101 41O10NE0101
T-6017 / 2.42668 20000005158 20000005158
63.6047 41O10NE0088 41O10NE0088

Geology

Province: Superior

Subprovince: Abitibi

Terrane: Wawa-Abitibi

Belt: Swayze

Geological Age: Archean   Geochronological Age: 2731 Ma   Geochron. Age Ref.: Heather and Shore 1999

Metamorphism Type: Regional

Metamorphism Grade: Greenschist



Geology Comments

Apr 30, 2020 (Sheree Hinz) - Mafic volcanics were found in the trenches. The showing is abruptly cut-off to the east by a diabase dyke. Numerous quartz-feldspar porphyry dykes/sills were noted in the trench. The alteration mineralization is chlorite, pervasive silicification, local quartz-pyrite stringers, carbonatization (ankerite) and epidotization.




Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Mafic lava flow-unsubdivided 1 Carbonate Altered, Pyritic Host

Lithology Comments

Apr 30, 2020 (Sheree Hinz) - Pyrite mineralization both as disseminations up to 15% and as stringers up to 20% at the showing. Samples taken from a trench in 2009 by M.A. Tremblay and J. Robert gave returns of 0.256 oz/ton Au, 7.876 oz/ton Ag.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
PyriteAlterationCarbonatization1ExtremeReplacement

Alteration Comments

Mar 22, 2011 (B Atkinson) - Major element analyses indicate the rock is strongly carbonate altered, silica depleted and elevated in iron. Loss on ignition value is 23.61%. Alteration is intense, pervasive and appears to be structurally controlled.




Assay Samples

Assay Samples
CommodityAnalytical MethodDigestion Method ResultUnitLimitQualifier
GoldUnknown.51oz/t

Mineral Record Details

Classification
RankClassification            
1 Hydrothermal
Characteristics
Rank Characteristic            
1 Sheared

Site Visit Information

Date: Sep 23, 2009

Geologist: B Atkinson

Notes: Property visit completed in the company of the claim holder.



References

Mono - Report of Activities 2009, Resident Geologist Program, Timmins Regional Resident Geologist Report: Timmins and Sault Ste. Marie Districts

Publication Number: OFR6247 Scale:     Date: 2010

Author: Atkinson B.T., Pace A., Beauchamp S.A., Bousquet P., Butorac S., Draper D.M., Wilson A.C.

Publisher Name: Ontario Geological Survey

Location:


MonoMap - Geology of Halcrow-Ridout lakes area, District of Sudbury

Publication Number: R063 Scale:     Date: 1968

Author: Donovan J.F.

Publisher Name: Ontario Dept. of Mines

Location:


Map - Cunningham and Garnet townships, Sudbury District

Publication Number: M2503 Scale: 1:31,680    Date: 1987

Author: Siragusa G.M.

Publisher Name: Ontario Geological Survey

Location:


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