Ontario Geological Survey
Permanent Link to this Record:
MDI42A04NW00005
Record Name(s) | Crawford River - 1959, Hoodoo West - 1951 |
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Related Record Type | Simple |
Related Record(s) | |
Record Status | Discretionary Occurrence |
Date Created | 1993-Jun-24 |
Date Last Modified | 2022-May-11 |
Created By | |
Revised By |
Primary Commodities: Asbestos
Township or Area: Kenogaming
Latitude: 48° 8' 43.03" Longitude: -81° 57' 11.94"
UTM Zone: 17 Easting: 429087.07 Northing: 5332887.81 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 42A04NW
Point Location Description: Small pop hole in outcrop adjacent to a wet swamp which mantles the Crawford River.
Location Method: Data Compilation
Access Description: The Kenogaming Main Haul road provides easy access to the central part of the area from Highway 101. The old secondary logging roads and grid lines have grown in.
1951 Canadian Johns Manville started an asbestos exploration program in the area. This prompted Nick Elieff who worked for Dunvegan Mines to search for asbestos and resulted in the discovery of a collection of showings at Crawford River. In the following year one short hole was drilled to test the mineralization but no asbestos was intersected. 1956 Johns Manville staked the ground then carried out a magnetometer survey and geologically mapped the property. During this work the occurrence of asbestos mineralization was confirmed. 1965 Canadian Johns Manville carried out a ground magnetic and horizontal loop EM survey over the property. Based on this work together with other geological information a geological map for the area was generated. 1973 Hanna Mining carried out a reconnaissance nickel exploration program which covered the area. Samples containing asbestos were analysed for nickel but with disappointing results as most of the nickel is tied up in the silicate phase. 1983 The HWS Syndicate (R.J. Sheppard) recompiled the regional geology after flying a detailed airborne magnetic and EM survey. This work was part of a grass roots gold exploration program. 1984 Golden Range Resources carried out a large diversified exploration program in the search for gold. The ultramafics hosting the asbestos mineralization together with the other rocks in the area were mapped in detail, brief mention is made of the asbestos mineralization as an alteration of the ultramafics. 1990 A ground magnetic together with horizontal loop EM survey was carried out over the asbestos showings by Falconbridge as part of a nickel exploration program.
Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
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T-527 / 63.325 | 42A04NW0170 | 42A04NW0170 |
T-648 / 63.858 | 42A04NW0173 | 42A04NW0173 |
T-2751 / 2.8587 | 20000004926 | 20000004926 |
T-527 / donation | 42A04NW0158 | 42A04NW0158 |
T-648 / 63.1808 | 42A04NW0163 | 42A04NW0163 |
T-2751 / donation | 42A04NW0139 | 42A04NW0139 |
T-3398 / 2.13542 | 42A04NW1109 | 42A04NW1109 |
T-527 / donation | 42A04NW0155 | 42A04NW0155 |
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Swayze
Geological Age: Neoarchean
Metamorphism Type: Regional
Metamorphism Grade: Greenschist
Dec 07, 2005 (S Fumerton) - At the river there is a general trend of 110 to the alteration veins which dip steeply to the south. This trend has been folded into open folds.
Rock Type | Rank | Composition | Texture | Relationship | Serpentinite | 1 | Serpentinite | Host |
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Diabase | 2 | Diabase | Dyke | Near |
Mylonite/Fault Gouge/Pseudotachylite | 3 | Shear Zone | Adjacent |
Sep 21, 2017 (S Fumerton) - The mineralization is hosted in a large ultramafic body which has been interpreted as both a flow and a sill. This unit is generally strongly serpentinized and locally contains talc/carbonate and more rarely asbestos veins parallel to joints. At the river there are abundant veins filled with fine grained serpentinite or talc / carbonate that are up to 2cm thick. Between these veins there are elliptical cores of less altered material. In addition to these large veins there is a mesh of fine discontinuous veins measuring less than 1x30mm which are formed of medium grained talc and carbonate. Adjacent to the diabase dyke there is a contact metamorphic aureole which affects the serpentinized ultramafic and the alteration veins. At the eastern occurrences cumulate textured subhedral, pseudomorphic olivine up to 2cm across occurs. This unit is locally banded with coarse and fine grained olivine phases. The cumulate grains have been cut by a mesh of serpentinized or steatitized joints leaving elliptical cores of less altered crystals / material.
Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
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1 | Chrysotile | Economic | Ore | ||||
Serpentine | Alteration | Serpentinization | 1 | Strong | Replacement |
Sep 21, 2017 (S Fumerton) - Asbestos occurs in small braided veins associated with some of the thicker serpentinite veins. The braided veins occur over a width of several centimetres but the individual asbestos veins are up to 4mm thick. The chrysotile asbestos is a pale green colour, flexible, and can easily be frayed by hand. At the eastern occurrences rare veinlets of asbestos occur in patches where they can form up to 1% of the rock. The veinlets are up to 2x50mm in size and are orientated 300.
Sep 21, 2017 (A Wilson) - No individual fibre longer than 3/16 inch was observed. Fibre exposed to date is in areas of small lateral extent, too small to be considered as orebodies.
Rank | Classification |
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5 | Replacement |
Rank | Characteristic |
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5 | Stockwork |
Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
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Irregular | N/A | N/A |
Date: Oct 10, 1951
Geologist: S Fumerton
Notes: Chrysotile fibre has been located in the serpentine rocks in several places on the Dunvegan Property. Two of these were examined by the writer. A third, located west of the Crawford river and reported to be of similar nature was not examined. A limited amount of work has been done on an exposure of fibre on an outcrop on the Crawford River about half a mile from the east end of Crawford Lake. A second occurrence is about half a mile to the east of this point. In both cases, a few shallow holes have been blasted to expose the fresh fibre. The fibre is a pale amber colour and of a good quality. However, it occurs over narrow widths, and the fibres are short. In some cases veinlets up to a half inch were observed, but in these veinlets, the fibre is jointed [ PRECIS ]
Map - Kenogaming Township, District of Sudbury
Publication Number: P0465 Scale: 1:15,840 Date: 1997
Author: Milne V.G.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Penhorwood and Kenogaming townships, Sudbury District
Publication Number: M2231 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: 82-83 Date: 1972
Author: Milne V.G.
Publisher Name: Ontario Division of Mines
Location:
File - Resident Geologist files 1980, air photos
Publication Number: Date: 1996
Author:
Publisher Name:
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:
Book - Kenogaming Township - unpublished GDIF
Publication Number: GDIF Date: 1991
Author: Resident Geologist staff
Publisher Name:
Location: Timmins RGP
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
Mono - Industrial minerals of northern Ontario
Publication Number: MDC026 Page: 66, 91-92 Date: 1985
Author: Vos M.A., Abolins T., McKnight R.L.W., Smith V.
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: 502-503 Date: 1995
Author: Fumerton S.L., Houle K.A.
Publisher Name: Ontario Geological Survey
Location:
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