Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI41P12SW00033

Record: MDI41P12SW00033

General

Commodities

Primary Commodities: Gold, Copper

Location

Township or Area: Chester

Latitude: 47° 33' 39.47"    Longitude: -81° 55' 29.92"

UTM Zone: 17    Easting: 430417.58   Northing: 5267919.7    UTM Datum: NAD83

Resident Geologist District: Timmins

NTS Grid: 41P12SW

Point Location Description: North side of an open cut adjacent to a mine access road

Location Method: Field Visit with GPS

Access Description: Access from Highway 144 is easy. This can be done by taking the Mesomikenda Lake road to the lake of the same name. Then the Young Shannon mine access road crosses some narrows and eventually passes right by the open cut.

Exploration History

1931: Three Ducks Syndicate - prospecting. 1934: Martin Syndicate - prospecting. 1935: Young Shannon Gold Mines Ltd. - exploration program. 1946: Young Shannon Gold Mines Ltd. - diamond drilling. 1965: Gogama Gold Mines Ltd. - geological reconnaissance, ground VLF-EM and magnetic survey. 1973: Park Precious Metals Inc. - IP survey, diamond drilling. 1975-79: Canadian Crest Gold Mines Ltd. - underground rehabilitation, mining. 1980: Hargor Resources - Canadian Gold and Metals Inc. - airborne magnetic and VLE-EM survey. 1984-90: Young Shannon Gold Mines Ltd. - ground VLF-EM survey, IP survey, diamond drilling (45 ddh - 7020 m). 1986: Wesport Resources Inc. – DD, GL, IP, Samp. 2010: Trelawney Mining and Exploration Inc. – AEM, AMag.

Assessment Work on File

Geology

Province: Superior

Subprovince: Abitibi

Terrane: Wawa-Abitibi

Belt: Swayze

Geological Age: Neoarchean   Geochronological Age: 2740 MA   Geochron. Age Ref.: GSC OF 3384A

Geology Comments

Dec 07, 2005 (S Fumerton) - There are numerous subparallel joints and slicken sided surfaces are present along the walls of the vein. A shear foliation is also present locally. There is also a rhombohedral fracture pattern present in the rocks which locally has acted as a conduit for chlorite alteration.

Lithology

Lithology Comments

Dec 07, 2005 (S Fumerton) - The host rock is a medium grained, weakly foliated granodiorite with 20 - 30% quartz, 2 - 5 % mafic minerals. The quartz typically has a blue - grey opalescent appearance. Near the vein the granodiorite has a darker colour which may be due to fine grained chlorite alteration. Also there are local patches where the host rock has a pink/ purple tint which may be indicative of hematite alteration. Locally massive, dark green chlorite and pink calcite occur as fracture fillings. Malachite commonly occurs as a wide spread, thin film along joint surfaces. In contrast recent white sulphate alteration is restricted to the vein with some malachite streaks.

Mineralization

Mineralization Comments

Dec 07, 2005 (S Fumerton) - Mineralization is centred on a quartz/sulphide vein that pinches and swells between 10cm and 40cm in thickness. Adjacent to this main vein there are a number of small subparallel carbonate veins, quartz veins with wall rock fragments, and coarse grained, quartz - iron carbonate veins. The mineralization occurs as fine disseminated sulphide grains in the matrix of the adjacent granodiorite and in a semi massive portion of the vein structure varying between 4 and 10cm thick. The vein itself is a composite vein consisting of very fine grained quartz, a quartz breccia set in a chloritic/sulphide matrix, and massive sulphides.

Dec 07, 2005 (A Wilson) - Assay results obtained from diamond drilling on the B Zone ranged up to 41 g/t Au. Grab samples collected by the OGS in 1979 returned values of 16.1 g/t Au; 19.88 g/t Au and 32.91 g/t Ag; 1.37 g/t Au. Samples collected by the OGS in 1980 returned values of 6.5 g/t Au; 2.4 g/t Au, 8.2 g/t Au, 6.2 g/t Au and 9.9 g/t Au.

Assay Samples

Mineral Record Details

Mineral Zones - Size and Shape

Rank: 1       Structure Type: Shear

Site Visit Information

Date: Jul 27, 1993

Geologist: S Fumerton

Notes: In the company of Bill Yee this mineral occurrence was visited. The site consists of a 75-100m long open cut that is between 2 and 4m deep. This cut dips to the north and the hanging wall overhangs the workings. The footwall is generally more gradational. To the east a series of overgrown trenches and pits extend the workings another 75m. These pits and trenches are up to 2m deep with gradual walls and locally filled with water. Gangue has been dumped to the southwest of the workings. The Young Shannon mine access road makes a short detour around the west end of the open cut. There is no fence or signs marking the open cut. The lack of notices was brought to the attention of an affiliate of the property owner and it was stated that such notices would be installed. To the south there are additional trenches which have been put down to test a parallel vein structure.

References

Book - Sudbury Timmins Algoma Mineral Program, Project 1: mineral inventory of the Sudbury-Timmins-Sault Ste. Marie region, Ontario

Publication Number: GSC OF 1087 Page: 41P-38  Date: 1985

Author: Rose, D. G.

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/129999

File - Resident Geologist files T-6350

Publication Number: Date:

Author:

Publisher Name:

Location: Timmins RGP office

Map - Three Duck Lakes area, District of Sudbury, Ontario

Publication Number: ARM41D Scale: 1:47,520    Date: 1997

Author: Laird H.C.

Publisher Name: Ontario Dept. of Mines

Location:

Map - Geological series, Precambrian geology of Chester and Yeo townships, and parts of Neville and Potier townships, Jerome area, Sudbury District

Publication Number: P2449 Scale: 1:15,840    Date: 1981

Author: Siragusa G.M.

Publisher Name: Ontario Geological Survey

Location:

Mono - Preliminary report on the Timmins-Kirkland Lake area, gold deposits file

Publication Number: OFR5467 Date: 1983

Author: Hodgson C.J.

Publisher Name: Ontario Geological Survey

Location:

Map - Precambrian Geology, Parts of Chester, Neville, Potier and Yeo Townships

Publication Number: OFM0214 Scale: 1:15,840    Date: 1993

Author: Siragusa G.M.

Publisher Name: Ontario Geological Survey

Location:

Map - Geology, Swayze greenstone belt, Gogama, Ontario

Publication Number: OF3384G Scale: 1:50,000    Date: 1999

Author: Heather, K B; Shore, G T

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/210455

Article - 1979 report of Northern Regional Geologist and Timmins Resident Geologist

Publication Number: MP091.005 Date: 1997

Author: Luhta L.E.

Publisher Name: Ontario Geological Survey

Location:

MonoMap - Geology, Geochemistry and Mineralization of the Southern Margin of the Swayze Belt

Publication Number: OFR5844 Page: 88-89  Date: 1993

Author: Siragusa G.M.

Publisher Name: Ontario Geological Survey

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: 401-403  Date: 1995

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

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