Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI41O15SW00011

Record: MDI41O15SW00011

General

Mineral Record Identification
Record Name(s) Granges DDH Sw-49 - 1977
Related Record Type Simple
Related Record(s)
Record Status Occurrence
Date Created 1994-Jun-02
Date Last Modified 2022-Sep-23
Created By
Revised By

Commodities

Primary Commodities: Zinc

Secondary Commodities: Gold



Location

Township or Area: Greenlaw

Latitude: 47° 45' 27.01"    Longitude: -82° 49' 36.88"

UTM Zone: 17    Easting: 363085.54   Northing: 5290964.55    UTM Datum: NAD83

Resident Geologist District: Timmins

NTS Grid: 41O15SW

Point Location Description: Clearing on east shore of Lee Lake.

Location Method: Field Visit with GPS

Access Description: Road access may be accomplished by taking Highway 677 off of Highway 129 south of Chapleau as far as Kormak station. A road leads north from Kormak about 20 km where it will take you where the Sylvanite Creek crosses the road in northwest Greenlaw Twp. A canoe trek up the Sylvanite Creek into lower Lee Lake makes for easy access to the occurrence.



Exploration History

1932-34: Lee Gold Mines Ltd. - 7 trenches, 11 ddh, shaft sinking to 250 feet. 1972: Cana Exploration Consultants Ltd. - Broad Scope Development Ltd. - ground magnetic and EM survey, 4 ddh. 1977-78: Granges Exploration - 4 ddh (553 m). 1983-84: Collingwood Energy Inc. - ground magnetometer and VLF-EM survey, mapping, sampling, airborne mag and VLF-EM survey, 14 ddh (1700 m). 1989: Tremblay - ground magnetometer survey. 1989: Patrie Exploration Services - airborne mag and VLF-EM survey, sampling. 1996: 2973090 Canada Inc./Obradovich, T. – Assays, Pr. 1998 : Panterrra Minerals Inc./Obradovich, T. – Mag. 2011: Anderson, S. – Assays, Pr.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
T-3318 / 2.12844 41O15SW9084 41O15SW9084
T-3859 / 2.17412 41O15SW0079 41O15SW0079
T-3997 / 2.18492 41O15SW2006 41O15SW2006
T-6425 / 2.51657 20000007181 20000007181
T-1774 / 41O10NW9062 41O10NW9062
T-3312 / 2.12657 41O15SW0110 41O15SW0110
T-3318 / 63.5621 41O10NW9157 41O10NW9157

Geology

Province: Superior

Subprovince: Abitibi

Terrane: Wawa-Abitibi

Belt: Swayze

Tectonic Assemblage: Halcrow-Swayze

Geological Age: Neoarchean   Geochronological Age: 2700 MA   Geochron. Age Ref.: GOO VOL 1

Metamorphism Type: Regional

Metamorphism Grade: Greenschist



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Felsic lava flow-unsubdivided 1 Rhyolite Breccia Host
Terrigenous-Clastic-Unsubdivided 2 Graphitic Argillite Near
Schist-Unsubdivided 3 Sericite Near

Lithology Comments

Dec 07, 2005 (K Houle) - Hole SW-49 intersects a series of alternating sections of rhyolitic breccia, graphitic argillite and sericite schist. The cherty rhyolite breccia is described as being highly foliated, with poorly sorted irregular rhyolitic fragments in a dark weakly graphitic matrix. This breccia is seen to be commonly interbedded with a graphitic argillite. Hole SW-49 was drilled to the south at an initial inclination of 45 degrees to a final depth of 753' (330 m).




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1PyriteEconomicGangue
SericiteAlterationSericitization1MediumReplacement

Mineralization Comments

Dec 07, 2005 (K Houle) - Pyrite appears to be the predominant sulphide mineral present throughout the hole and appears as disseminates as well as massive to semi massive sections in core. Near massive sections range in width up to 1' (30.5 cm) with disseminates and stringers of pyrite ranging from 3-20%.


Dec 07, 2005 (A Wilson) - A gold value of 0.95 g/t Au over 1.4 feet was obtained from core drilled by Granges Exploration. The highest assay obtained by Collingwood Energy was from a grab sample that returned a value of 0.157 g/t au. Diamond drilling completed by Collingwood Energy in 1984 returned a value of 0.137 g/t Au over 10 feet from a sludge sample.


Aug 12, 2013 (P Bousquet) - Drillhole SW-49 also returned an assay of 0.64% Zn over 10ft (T-1774). This intersection was in a graphitic argillite.



Mineral Record Details

Mineral Zones - Size and Shape

Zone Name: Detour Lake - Rank 1
Shape Length Thickness Depth Strike Dip Plunge Trend Age Reference
Unknown N/A N/A

Site Visit Information

Date: Jun 16, 1994

Geologist: K Houle

Notes: An attempt was made to locate the collar of hole SW-49 but no sign of previous drilling was found except for a small clearing on the east shore of the lake that coincided to the approximate location.



References

File - Resident Geologist files T-2094

Publication Number: Date:

Author:

Publisher Name:

Location: Timmins RGP office


Map - Tooms and Greenlaw townships, Sudbury District

Publication Number: M2121 Scale: 1:31,680    Date: 1997

Author: Donovan J.F.

Publisher Name: Ontario Dept. of Mines

Location:


Part - Geology of the Swayze gold area

Publication Number: ARV43-03.001 Page: 33-34  Date: 1998

Author: Rickaby H.C.

Publisher Name: Ontario Dept. of Mines

Location:


Part - Geology of the Opeepeesway Lake area

Publication Number: ARV44-07.001 Page: 39  Date: 1997

Author: Laird H.C.

Publisher Name: Ontario Dept. of Mines

Location:


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

Publication Number: R063 Date: 1968

Author: Donovan J.F.

Publisher Name: Ontario Dept. of Mines

Location:


Core - Resident Geologist Core Library

Publication Number: Drill Core Date: 1996

Author:

Publisher Name:

Location:


MonoMap - Mineral Prospects of the Swayze Greenstone Belt (Volume 1, Parts of NTS 41 O and Volume 2, Parts of NTS 41 P, 42 A and 42 B)

Publication Number: OFR5912 Page: 146-148  Date: 1995

Author: Fumerton S.L., Houle K.A.

Publisher Name: Ontario Geological Survey

Location:


Map - Geology, Swayze greenstone belt, Rollo Lake, Ontario

Publication Number: OF 3384b Scale: 1:50,000    Date: 1999

Author: Heather, K B; Shore, G T

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/210450


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 Timmins Resident Geologist District Office