Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI41P12SW00082

Record: MDI41P12SW00082

General

Commodities

Primary Commodities: Gold, Copper

Secondary Commodities: Silver

Location

Township or Area: Chester

Latitude: 47° 33' 38.17"    Longitude: -81° 56' 26.13"

UTM Zone: 17    Easting: 429242.58   Northing: 5267893.7    UTM Datum: NAD83

Resident Geologist District: Timmins

NTS Grid: 41P12SW

Point Location Description: A washed outcrop in which a number of small trenches have been excavated.

Location Method: Field Visit with GPS

Access Description: Easy access is possible as the prospect is adjacent to an old logging road that extends north of the Chester Shannon mine access road. The Chester Shannon road connects to Highway 144 via Mesomikenda Lake. Alternatively the southern extension of the logging road connects with the Sultan access road some 10km to the south.

Exploration History

1966: Shannon Minerals covered the prospect with a horizontal loop electromagnetic survey and geologically mapped the area as part of a program to trace possible extensions to the Young Shannon mineralization. During this program a series of pits and trenches were excavated at the prospect but there is no record of any results. 1970: Darwin Mines acquired an area covering the prospect and carried out a geological evaluation together with a VLF electromagnetic and induced polarization surveys. One diamond drill was cored to test a northeast trending IP anomaly. 1979: Canadian Crest GML flew a magnetic and radiometric survey over the claims to locate a potential source for some radioactive boulders found along the Mollie River and help define the bedrock geology. 1985: Emerald Isle Resources remapped the area and carried out another VLF electromagnetic survey which covered the prospect. No mention of this particular prospect was made in any of the reports but in 1987 three short holes were drilled on a 'Au Zone'. These holes intersected a number pyritic patches and pyrite-quartz fractures and veins but no assays are given. 2007: Augen Gold Corp. – AEM, AMag, ARAD. 2010: Trelawney Mining Augen Acquisition Corp. – GC. Augen Gold Corp. – EM, IP, Mag.

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 3384 G

Geology Comments

Dec 07, 2005 (S Fumerton) - The dominant fabric in the area is the occurrence of southeast trending shear zones. These are locally curvy-linear and form a stockwork. Between the shears that are closely spaced there are abundant splay faults which results in a shattered / fragmented appearance. Away from the northern contact a strong foliation / flaser texture is locally present in the outcrops. At the showing these shears take on a slightly different form occurring as en-echelon 'Black Line' faults. These faults are less than 10cm thick and material within the faults are locally brecciated and voids are filled with fine grained tourmaline. At varying intervals within the 'Black Line' faults there are small quartz veins up to 20cm thick.

Lithology

Lithology Comments

Dec 07, 2005 (S Fumerton) - The general host rock to the mineralization is a very fine grained intermediate and felsic contact phase of the Chester Granitoid Complex. This material contains small (<1x4mm) subhedral to anhedral feldspar phenocrysts which form up to 50% of the rock but the typical amount is less than 20%. To the south the matrix of the granitic rocks becomes slightly coarser. A number of diabase dykes occur in the area but are not apparently associated with the mineralization. Chlorite alteration is associated with some of the curvy-linear shear zones that transect the outcrops in the area. The boundaries to the alteration are sharp and the alteration does not extend more than 10cm from the shear zones.

Mineralization

Mineralization Comments

Dec 07, 2005 (S Fumerton) - The mineralization is associated with a series of en-echelon 'Black Line' faults and associated shears. The whole collective mineralized zone is about 10m wide but individual zones are less than a metre thick. Adjacent to the shear zones, splay faults and some of the 'Black Line' faults, fine pyrite is disseminated. Within the quartz veins and to a lessor extent in the 'Black Line' faults there are discontinuous trails of coarse semi-massive pyrite which are up to a centimetre thick.

Dec 07, 2005 (A Wilson) - Grab samples collected from the muck pile by the OGS in 1993 returned assays of 0.02 g/t Au, 0.1 g/t Au; 0.1 g/t Au and 0.3 g/t Ag.

Assay Samples

Mineral Record Details

Mineral Zones - Size and Shape

Rank: 1       Structure Type: Shear

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-45  Date: 1985

Author: Rose, D. G.

Publisher Name: Geological Survey of Canada

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

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:

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

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:

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

Publication Number: OFR5844 Page: 88  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: 457-458  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