Ontario Geological Survey
Permanent Link to this Record:
MDI42B01NE00004
| Record Name(s) | Reeves Mine - 1964, Bromley Asbestos - 1951, John Mansville 75 Zone - 1980, Reeves Property - 1953, Reeves - 1980 |
|---|---|
| Related Record Type | Compound |
| Related Record(s) | |
| Record Status | Past Producing Mine With Reserves or Resources |
| Date Created | 1992-Jun-17 |
| Date Last Modified | 2022-Sep-27 |
| Created By | |
| Revised By |
Primary Commodities: Asbestos
Secondary Commodities: Copper
Township or Area: Reeves, Penhorwood
Latitude: 48° 12' 20.2" Longitude: -82° 4' 54.06"
UTM Zone: 17 Easting: 419633 Northing: 5339719 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 42B01NE
Point Location Description: Occurrence 30 map 2627
Location Method: Field Visit with GPS
Access Description: The mine is located some 70km west-southwest of Timmins and easy access is possible via Highway 101 to the mine turn-off. From this turn-off the mine road goes south for 2km to the abandoned pit.
1947: The first reported work in the immediate area of the ultramafics was carried out by Pen-Star and Pen-More Syndicates and consisted of geophysical and geological work carried out as a guide to prospecting for sulphide deposits. 1950: Asbestos was discovered by J.C Bromley while prospecting. 1951: The property was acquired by Johns Manville who started an exploration program in the following year. This exploration program which continued for over twenty years consisted of geological mapping, magnetic, electromagnetic surveys and diamond drilling was centred on the Reeves Mine but did cover a number of other asbestos showings in the area. Diamond drilling on the main prospect totalled 8,031m in 1952 and 4,370m in 1953. 1964: Underground exploration started and bulk samples were collected from surface and underground. These samples totalling 8,380 tonnes in 1964 and 1,878 tonnes in 1965 (8,248 tons and 1,848 tons) were processed at the Munro Mine. 1966: Overburden stripping and site preparation began. 1968: The Reeves Mine started production. 1975: mine closes because of uncontrollable dust conditions in the mill. 2010: Rio Tinto Minerals / Luzenac Inc. – EM, Mag.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| T-506 / 63.774 | 42B01NE0063 | 42B01NE0063 |
| T-506 / 63.833 | 42B01NE0062 | 42B01NE0062 |
| T-506 / | 42B01NE0068 | 42B01NE0068 |
| T-2799 / 2.6342 | 42A04NW0028 | 42A04NW0028 |
| T-6173 / 2.46282 | 20000005601 | 20000005601 |
| T-506 / 63.440 | 42B01NE0060 | 42B01NE0060 |
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Swayze
Tectonic Assemblage: Muskego-Reeves
Geological Age: Neoarchean
Metamorphism Type: Regional
Metamorphism Grade: Greenschist
Dec 07, 2005 (S Fumerton) - The ultramafic host rock has been folded and the axes plunge steeply to the northwest. Mention has been made that mineralization is associated with reverse faults trending 120 deg and dip at less than 45deg north.
Oct 21, 2014 (A Wilson) - Ayer indicates that the ore body is situated within the northern part of a differentiated ultramafic to gabbroic body 120 to 300 m thick. The ore zones occur in serpentinized dunite in the northern closure of an antiformal structure which plunges about 50 degrees to the northeast. The orebody is enclosed to the west, north and east by about 30 m of barren serpentinite in contact with mafic metavolcanic rocks. The ore is typically a moderately carbonatized medium-grained serpentinite with magnetite concentrated in shears. South of the fault the rock is a coarse grained carbonatized serpentinite. Secondary serpentinization and dolomite alteration occurs along fractures with some poor quality asbestos.
| Rock Type | Rank | Composition | Texture | Relationship | Ultramafic-Unsubdivided | 1 | Host |
|---|---|---|---|---|
| Ultramafic lava flow-unsubdivided | 2 | Komatiite | Spinifex | Host |
| Mafic lava flow-unsubdivided | 3 | Basalt | Tholeiitic Mg | Near |
| Serpentinite | 4 | Serpentinite | Contains |
Dec 07, 2005 (S Fumerton) - The deposit is located in compositionally layered ultramafic rocks which may be part of an intrusive plug or a thicken sequence of komatiitic flows in the nose of a fold. Else where these flows or lenses are conformable with some Mg tholeiitic flows in a thick sequence of mafic metavolcanics. Originally these ultramafic rocks were divided into early and late ultramafic intrusives by Milne 1972 but the occurrence of compositionally controlled spinifex texture (Pine needle or chicken track texture) was noted in settings now regarded as characteristic of layered komatiite flows. Except for the southern boundary, the orebody is surrounded by barren, fine grained serpentinite which is weekly carbonatized and derived from a dunite. This is in contact with Mg Tholeiitic metavolcanics. Locally the contact between ore and waste is marked by shearing and / or off white tremolite - carbonate alteration. The ore is typically a moderately carbonatized, medium grained serpentinite with magnetite concentrated in shears. Locally the carbonate alteration imparts a pale green colour to the rock. Immediately north of the southern faulted contact the ore is highly contorted and carbonatized. South of the fault the rock is a coarse grained carbonatized serpentinite. Secondary serpentinization (lizardite) and dolomite alteration occurs along fractures with some poor quality asbestos. Further south the extent of carbonatization and serpentinization alteration diminishes. In addition to the fibrous form, ortho chrysotile also occurs in two other forms, firstly coarse grained, brittle chrysotile prisms occurs in veins up to 20cm thick and secondly narrow veins of very fine grained, compact apple green chrysotile.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Asbestos | Economic | Ore | ||||
| 2 | Chrysotile | Economic | Ore | ||||
| 1 | Magnetite | Economic | Gangue | ||||
| Serpentine | Alteration | Serpentinization | 1 | Medium | Replacement | ||
| Magnesite | Alteration | Steatization | 2 | Medium | Replacement | ||
| Tremolite | Alteration | Steatization | 3 | Medium | Replacement | ||
| Dolomite | Alteration | Carbonatization | 4 | Weak | Replacement |
Dec 07, 2005 (S Fumerton) - Asbestos fibre veins (chrysotile) are associated with magnetite in thin seams in the centre of a composite vein or along the margin of a simple single vein. Locally, up to eleven separate though adjacent asbestos veins can occur in a single composite vein. Commonly these larger veins are mantled by swarms of thin gash veins with fibres oblique to the vein. The asbestos mineralization occurs in two zones separated by a diabase dyke. In these zones there is a complex network of veins of various ages. Fibre veins are more continuous in the east zone but this is not the case in the west zone which consequently has erratic grades. Highly mineralized areas are marked by the occurrence of gash veins between the larger veins which improves the over all grade of the ore. Average grade of the ore is 2.5 to 3% asbestos with 4% being the richest. Most fibres are less than 5mm but some material up to 15mm occurs. No information on the quality is available but the bulk of the production was used in asbestos cement and asphalt.
| Rank | Classification |
|---|---|
| 5 | Replacement |
| Rank | Characteristic |
|---|---|
| 5 | Stockwork |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Irregular | 640 | 230 | 300 | N/A | N/A |
Date: Jun 16, 1992
Geologist: S Fumerton
Notes: In the company of Marc Leroux of the MNDM a visit was made of the old pit and mill at the Reeves Mine. The west pit is full of water and is used as a tailings pond for the Penhorwood Talc operation. Around the margins of the pit no mineralization was noted, presumably because the original pit was taken back a considerable distance from the ore zones. The mill has been stripped of all mechanical equipment and a number of the buildings have been partially demolished. It would also appear that a scrap salvage program was left uncompleted. Large amounts of material have been removed from the reject pile presumably for construction purposes.
| Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
|---|---|---|---|---|---|---|
| REEVES | 1967 | Probable | 20000000 | OFR 5912, VOL 2, P. 539 | Personal communication between E.K. Con exploration manager CJM and V Milne | Asbestos 3 Percent |
| Year | Tonnes | Commodities | Reference | Comment |
|---|---|---|---|---|
| 1974 | 222960 | Production was halted for most of the year while development work was carried out. Operations at the mine and mill were permanently shut down in 1975 due to uncontrollable air pollution | ||
| 1973 | 754198 | Total waste and overburden stripped off was 277,800 tonnes. Asbestos #1 is Grad | ||
| 1972 | 890640 | Total waste and overburden stripped off was 207,280 tonnes. Asbestos #1 is Grade | ||
| 1971 | 1188477 | Total waste and overburden stripped off was 1,473,470 tonnes. Asbestos #1 is Gr | ||
| 1970 | 1125000 |
Asbestos |
Total waste and overburden stripped off was 1,413,000 tonnes. Asbestos #1 is Gra | |
| 1969 | 1229273 |
Asbestos |
AR 79, P. 130 | 1,455,950 tonnes of waste were removed during the year. Commodity #1 is Grade Gr |
| 1968 | 628640 |
Asbestos |
AR 78, P. 131 | Production started in May. The initial stripping ratio was very high and 1,449,3 |
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:
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 - 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:
Part - Groundhog River area
Publication Number: ARV33-06.001 Page: 14 Date: 1998
Author: Todd E.W.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Geology of the Kukatush-Sewell Lake area, District of Sudbury
Publication Number: R097 Page: 67-73 Date: 1972
Author: Milne V.G.
Publisher Name: Ontario Division of Mines
Location:
Mono - Asbestos in Ontario
Publication Number: IMR001 Page: 13 Date: 1997
Author: Hewitt D.F., Satterly J.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Geology of the Chapleau area, districts of Algoma, Sudbury, and Cochrane
Publication Number: R157 Date: 1977
Author: Thurston P.C., Siragusa G.M., Sage R.P.
Publisher Name: Ontario Division of Mines
Location:
MonoMap - Precambrian Geology, Northern Swayze Greenstone Belt
Publication Number: R297 Page: 53-54 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: 537-539 Date: 1995
Author: Fumerton S.L., Houle K.A.
Publisher Name: Ontario Geological Survey
Location:
Mono - Annual report for the year 1966, statistics of the mineral industry and mining operations in Ontario for 1966
Publication Number: ARV76 Page: 175 Date: 1998
Author: Riddell G.S.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Annual report for the year 1965, statistics of the mineral industry and mining operations in Ontario for 1965
Publication Number: ARV75 Page: 147 Date: 1997
Author: Riddell G.S.
Publisher Name: Ontario Dept. of Mines
Location:
Compend - Annual report of Resident Geologists Section, Geological Branch, 1967, part 3
Publication Number: MP018 Page: 20-21 Date: 1968
Author:
Publisher Name: Ontario Dept. of Mines
Location:
Article - Timmins District
Publication Number: MP025.002 Page: 25 Date: 1997
Author: Bright E.G.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Asbestos in Ontario
Publication Number: IMR036 Page: 46-49 Date: 1998
Author: Vos M.A.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Location:
Compend - Annual report of the Regional and Resident Geologists, 1974
Publication Number: MP060 Page: 102 Date: 1975
Author: Pye E.G.
Publisher Name: Ontario Division of Mines
Location:
Compend - Annual report of Resident Geologists Section, Geological Branch, 1973
Publication Number: MP057 Page: 169 Date: 1974
Author: Kustra C.R.
Publisher Name: Ontario Division of Mines
Location:
Mono - Annual report on mining operations in Ontario during calendar year 1969
Publication Number: ARV79 Page: 130 Date: 1998
Author: Riddell G.S.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Location:
Mono - Annual report on mining operations in Ontario during calendar year 1968
Publication Number: ARV78 Page: 131-132 Date: 1998
Author: Riddell G.S.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Annual report for the year 1967, statistics of the mineral industry and mining operations in Ontario for 1967
Publication Number: ARV77 Page: 165-166 Date: 1998
Author: Riddell G.S.
Publisher Name: Ontario Dept. of Mines
Location:
Book - Asbestos; In: Ontario Dept. of Mines and Northern Affairs Review 1970
Publication Number: ODMNA 70 Page: 58 Date: 1971
Author: ODMNA
Publisher Name:
Location: Timmins RGP
Book - Ontario Department of Mines and Northern Affairs Review 1971
Publication Number: ODMNA 71 Page: 57 Date: 1971
Author:
Publisher Name:
Location: Timmins RGP
Book - Ontario Department of Mines and Northern Affairs Review 1972
Publication Number: ODMNA 72 Page: 54 Date: 1972
Author:
Publisher Name:
Location: Timmins RGP
Book - Ontario Department of Mines and Northern Affairs Review 1973
Publication Number: ODMNA 73 Page: 53 Date: 1973
Author:
Publisher Name:
Location: Timmins RGP
Book - Ontario Department of Mines and Northern Affairs Review 1974
Publication Number: ODMNA 74 Page: 57 Date: 1974
Author:
Publisher Name:
Location: Timmins RGP
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