Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI42B01NE00010

Record: MDI42B01NE00010

General

Commodities

Primary Commodities: Gold

Location

Township or Area: Reeves

Latitude: 48° 11' 38.55"    Longitude: -82° 1' 13.2"

UTM Zone: 17    Easting: 424174.06   Northing: 5338370.85    UTM Datum: NAD83

Resident Geologist District: Timmins

NTS Grid: 42B01NE

Point Location Description: Trench #4 located on a rise just south of a stream.

Location Method: Field Visit with GPS

Access Description: Access from the south is possible via the Kenogaming and Penhorwood Main Haul roads, then a secondary logging road extending north approximately along the Penhorwood - Kenogaming Township line. Alternatively access from the west is possible via a series of secondary forestry roads branching off Highway 101. The entrance off the highway is unmarked but is 7km west of the Kenogaming Road and a couple of hundred metres west of where the highway crosses Storm Creek.

Exploration History

1935: Erie Canadian Mines - v.g. found in vein material on claims held by M. Therieault. 1946: Kalbrook Mining - geological mapping, trenching, 13 ddh. 1975: D. G. Cameron - stripping, trenching. 1980: F. Levacque - trenching. 1981: R. Tremblay - trenching. 1986: Goldrock Resources - geological mapping, mag, VLF-EM surveys. 1987: Glen Auden - prospecting, trenching, soil geochemistry, mag survey, IP survey. 1989: American Barrick Resources- drilling. 1994 – 1996: Noranda / Hemlo Gold: DD – 1 – 308m, DD – 2 – 546m. 1996-1999: Battle Mountain Canada Ltd. – IP, Mag. 2004: Canadian Golden Dragon Resources / Maple Minerals Corp. – IP, Lc. 2005: Maple Minerals Corp. – Assays, DD – 1 – 248m. 2012: Prodigy Gold Inc. – AEM, AMag

Assessment Work on File

Geology

Province: Superior

Subprovince: Abitibi

Terrane: Wawa-Abitibi

Belt: Swayze

Tectonic Assemblage: Muskego-Reeves

Geological Age: Neoarchean  

Metamorphism Type: Regional

Metamorphism Grade: Greenschist

Geology Comments

Dec 07, 2005 (S Fumerton) - The general structural setting is that there are a number of parallel bands of intense shearing separated by zones with little or no shearing. Typically the apparent primary lithological layering is parallel to these shear zones but occasionally lithological layering is perpendicular to the shear zones, e.g. Glen Auden Trench #5. This suggests that the rocks have been tightly folded and then sheared. At Trench #4 where the auriferous vein is exposed the early foliation / schistosity associated with the strong carbonate chlorite alteration has been isoclinally folded. The nose of this fold which is 5 to 10m across with multiple 'M' fold is exposed and has an axial plane orientated 270/80 and plunging at 60 to 070. The auriferous quartz vein is discordant to the early foliation and is only slightly folded. This folded vein has an apparent fold axis plunging 20 towards 270.

Dec 07, 2005 (A Wilson) - The occurrence lies within the Deerfoot Deformation Zone (DDZ) that extends from north of the Kukatush pluton in Penhorwood Township to north of the Hanrahan Assemblage in Kenogamin Township. An abrupt change from southward younging stratigraphy north of the DDZ to northward younging south of the zone suggests the possiblility that the younging reversal may be the result of thrusting along the fault rather than a regional syncline.

Lithology

Lithology Comments

Oct 21, 2014 (S Fumerton) - The mineralization is hosted in strongly altered schists. Locally there are bands parallel to the schistosity where the primary features of the supracrustal rocks are discernible and alteration is not dominant. In these locations the dominant rock types are massive flows intercalated with variolitic pillows together with minor arenaceous rocks. The flows are fine to medium grained and biotite together with amphibole occurs as the mafic component and there relatively low concentrations suggest that the rock may be andesitic. Reported whole rock analyses indicate that these flows vary between iron tholeiitic dacites to tholeiitic basalts. The variolitic pillows locally overly the flows with very large pillows on the flow contact which become progressively smaller further away from the contact. In some areas possible pillows have been recognized which have been highly altered to a grey off white colour suggesting possible replacement silicification. Medium grained, lithic arenites with rare pebbles are not common but are exposed in trench 5. The rocks described above are surrounded by chlorite, iron carbonate, sericite schists. Locally these schists are banded on a centimetre scale due to varying concentrations of chlorite and this banding may be re-enforced by discontinuous black quartz veinlets. Within the schist there are local bands with a hornfelsic texture where hornblende prisms are randomly orientated in the plane of the foliation. Intruding the altered schists are narrow, boudinaged, ultramafic dykes up to 50cm thick with chlorite rich alteration halos extending about 10cm. The dykes themselves are extensively altered to a quartz - carbonate stockwork. The strong carbonate alteration locally affects the various lithologies without any perceptible shearing, and vice versa, some rocks have been strongly sheared without any apparent alteration.

Mineralization

Mineralization Comments

Dec 07, 2005 (S Fumerton) - Mineralization occurs in late quartz veins which are discordant to the dominant foliation and form a closely spaced set. There are 1 to 3 veins across a half metre thickness and the veins are between 2 and 20cm thick. The auriferous veins are zoned with between 2 and 5mm of grey course grained quartz along the walls with a white very course grained quartz (<2cm) in the centre which is cut by fractures with margins of grey quartz. Pyrite is erratically disseminated in very coarse subhedral grains which have rusted out on the bedrock surface. Locally adjacent to the auriferous veins there is a zone (<5cm) with medium to course grained pyrite concentrated in trails parallel to the foliation and form up to 20% of the rock. Rare chalcopyrite has been observed. The gold occurs as fine specks along a fracture surface within the white quartz.

Dec 07, 2005 (A Wilson) - The best assays obtained by the OGS from chip sampling of quartz veins were7.68 g/t Au, 7.5 g/t Au, and 5.17 g/t Au. Diamond drilling by American Barrick returned assays up to 0.31 g/t Au over 1 m.

Alteration Comments

Dec 07, 2005 (A Wilson) - The strong carbonate alteration locally affects the various lithologies without any perceptible shearing and vice versa, some rocks have been strongly sheared without any apparent alteration.

Assay Samples

Mineral Record Details

Mineral Zones - Size and Shape

Rank: 2       Structure Type: Fold

Rank: 1       Structure Type: Shear

References

File - Resident Geologist files T-145, T-2335, T-63637

Publication Number: Date:

Author:

Publisher Name:

Location: Timmins RGP office

Map - Reeves and Sewell townships, Sudbury District

Publication Number: M2230 Scale: 1:31,680    Date: 1972

Author: Milne V.G.

Publisher Name: Ontario Dept. of Mines and Northern Affairs

Location:

MonoMap - Geology of the Kukatush-Sewell Lake area, District of Sudbury

Publication Number: R097 Page: 91  Date: 1972

Author: Milne V.G.

Publisher Name: Ontario Division of Mines

Location:

Map - Precambrian Geology, Northern Swayze Greenstone Belt

Publication Number: M2627 Scale: 1:50,000    Date: 1995

Author: Ayer J.A.

Publisher Name: Ontario Geological Survey

Location:

Mono - Gold deposits of Ontario, part 2, part of District of Cochrane, districts of Muskoka, Nipissing, Parry Sound, Sudbury, Timiskaming, and counties of southern Ontario

Publication Number: MDC018 Page: 116  Date: 1979

Author: Gordon J.B., Lovell H.L., de Grijs J.W., Davie R.F.

Publisher Name: Ontario Geological Survey

Location:

File - Resident Geologist files 1946, air photo

Publication Number: Date: 1996

Author:

Publisher Name:

Location: Timmins RGP office

MonoMap - Precambrian Geology, Northern Swayze Greenstone Belt

Publication Number: R297 Page: 49  Date: 1995

Author: Ayer J.A.

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: 573-575  Date: 1995

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

Publisher Name: Ontario Geological Survey

Location:

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