Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI41O16NW00008

Record: MDI41O16NW00008

General

Commodities

Primary Commodities: Gold

Location

Township or Area: Horwood

Latitude: 47° 58' 22.9"    Longitude: -82° 17' 29.84"

UTM Zone: 17    Easting: 403601.538   Northing: 5314109.574    UTM Datum: NAD83

Resident Geologist District: Timmins

NTS Grid: 41O16NW

Point Location Description: North slope of hill, Pyrite Hill, where sericite carbonate alteration occurs.

Location Method: Field Visit with GPS

Access Description: As the showing is close to the shore of Hardiman Bay, access is possible either by boat from a landing at the north end of Horwood Lake, or by a series of logging roads off the Kenogaming - Penhorwood Main Haul roads.

Exploration History

1936 P. Silam held the claims which contained the known mineralization and reportedly obtained values of 3 g/t. 1981 Kennco Exploration flew an airborne magnetic and VLF-EM survey that covered the area. 1988 Hardiman Bay Resources mapped and sampled the area. In this work they noted pyritic quartz veins hosted in carbonate altered metavolcanics.

Assessment Work on File

Geology

Province: Superior

Subprovince: Abitibi

Terrane: Wawa-Abitibi

Belt: Swayze

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

Metamorphism Type: Regional

Metamorphism Grade: Greenschist

Geology Comments

Dec 07, 2005 (S Fumerton) - Near the reported area of the mineralization there is a strong shear zone which may be related to the mineralization. This shear trends to the southeast.

Lithology

Lithology Comments

Dec 07, 2005 (S Fumerton) - The supracrustal rocks in the area consist of massive and pillowed Mg tholeiitic basalt with some intercalated pyroclastic calc alkaline metavolcanics and argillaceous plus arenaceous horizons. This sequence has been intruded by a number of porphyries. Close to the plotted location there is a shear zone with intense carbonate - sericite alteration. This schist has numerous cavities where pyrite has been eroded and could be termed a carbonate - sericite - chlorite schist.

Mineralization

Mineralization Comments

Dec 07, 2005 (S Fumerton) - The original mineralized zone was not located and there is no description in the literature.

Dec 07, 2005 (A Wilson) - A grab sample taken by the OGS returned 3.00 g/t Au. MDC 18 reports a sample taken from a sulphide-bearing vein contained 0.09 oz/t Au.

Assay Samples

Mineral Record Details

Mineral Zones - Size and Shape

Rank: 5       Structure Type: Shear

Site Visit Information

Date: Jul 30, 1992

Geologist: S Fumerton

Notes: An attempt was made to locate the original showing. From a search of the assessment files the most probable area was what was termed 'Pyrite Hill' by Hardiman Bay Resources. This hill was traversed and one small slumped pit was found at the top of the hill but such pits are numerous in the area. Down the north face of the hill there are numerous terraces but these are thought to be natural though formed of sericite carbonate schists. No veining corresponding to the original occurrence was found.

References

Map - Geological series, Horwood Township, District of Sudbury

Publication Number: P0748 Scale: 1:15,840    Date: 1997

Author: Milne V.G., Breaks F.W.

Publisher Name: Ontario Dept. of Mines and Northern Affairs

Location:

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

Publication Number: GSC OF 1087 Date: 1985

Author: Rose, D.G.

Publisher Name: Geological Survey of Canada

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

Map - Horwood Lake, Sudbury District

Publication Number: M2329 Scale: 1:31,680    Date: 1975

Author: Breaks F.W.

Publisher Name: Ontario Division of Mines

Location:

Part - Geology of the Horwood Lake area

Publication Number: ARV46-02 Page: 25  Date: 1997

Author: Harding W.D.

Publisher Name: Ontario Dept. of Mines

Location:

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

Publication Number: OF3384c Scale: 1:50,000    Date: 1999

Author: Heather, K B; Shore, G T

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/210451

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: 105  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:

Map - Geology, Swayze Greenstone Belt, Ontario [legend and figures]

Publication Number: OF 3384A Date: 1999

Author: Heather, K B; Shore, G T

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/210446

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: 283-284  Date: 1995

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

Publisher Name: Ontario Geological Survey

Location:

Book - Horwood Township - unpublished GDIF

Publication Number: GDIF Date: 1990

Author: Resident Geologist Staff

Publisher Name:

Location: Timmins RGP

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