Ontario Geological Survey
Permanent Link to this Record:
MDI42A06NE00018
| Record Name(s) | Preston Mine - 1923, Preston (Midcamp) Mine - 1959, Preston East Dome Mine - 1911 |
|---|---|
| Related Record Type | Compound |
| Related Record(s) | |
| Record Status | Past Producing Mine Without Reserves or Resources |
| Date Created | 1981-Feb-25 |
| Date Last Modified | 2023-Mar-03 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Secondary Commodities: Silver
Township or Area: Tisdale, Deloro, Deloro
Latitude: 48° 27' 18.87" Longitude: -81° 14' 21.48"
UTM Zone: 17 Easting: 482307 Northing: 5366928 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 42A06NE
Point Location Description: No. 2 shaft
Location Method: AMIS Site Visit
1909: J.S. Wilson and H.A. Preston – staking. 1911-1912: Preston East Dome Mines Limited – property acquisition, shaft sinking. 1912-1934: Preston East Dome Mines Limited - surface DD. 1936: Preston East Dome Mines Limited - surface DD. 1938-1968: Preston East Dome Mines Limited - in production. 1949: Midcamp Mines Ltd. - channel sampling, DD. 1960: name change to Preston Mines Limited. 1981-85: Diepdaume Mines Limited – trenching, assays, UGDD-20-1432 ft, prospecting, ground geophysics, U/G rehabilitation, dewatering, U/G sampling, surface mapping. 1997: Dome Mines Ltd. – property acquisition, DD-9-3053 ft, property mined out as part of Dome superpit
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| T-2498 / 2.6477 | 42A06NE5151 | 42A06NE5151 |
| T-2498 / 2.4236 | 42A06NE0420 | 42A06NE0420 |
| T-2498 / #132/84 | 42A06NE5151 | 42A06NE5151 |
| T-2498/ OM84-5C-365 | 42A06NE0433 | 42A06NE0433 |
| T-4162 / 2.19080 | 42A06NE2009 | 42A06NE2009 |
| T-2498 63.4209 / OM82-5C-146 | 42A06NE0203 | 42A06NE0203 |
| T-2623 / OM86-PE81-C-81 | 42A06NE0202 | 42A06NE0202 |
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Abitibi
Geological Age: Neoarchean
| Rock Type | Rank | Composition | Texture | Relationship | Intermediate lava flow-unsubdivided | 1 | Basalt- Andesite | Adjacent |
|---|---|---|---|---|
| Vein | 2 | Host | ||
| Feldspar Porphyry | 3 | Feldspar | Host |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Gold | Economic | Ore | ||||
| 2 | Pyrrhotite | Economic | Ore | ||||
| 3 | Silver | Economic | Ore | ||||
| 4 | Chalcopyrite | Economic | Ore | ||||
| 5 | Sphalerite | Economic | Ore | ||||
| 6 | Galena | Economic | Ore | ||||
| 8 | Scheelite | Economic | Ore | ||||
| 9 | Pyrite | Economic | Ore | ||||
| 7 | Tourmaline | Economic | Gangue |
Mar 10, 2014 (A Wilson) - Virtually all ore mined from the property prior to 1942, came from footwall ore-bodies in the Preston Porphyry. They were described as replacement type lenses. Ore was also recovered from the North Greenstone Zone which consisted of large masses of white quartz or stockworks of quartz and tourmaline. The sulphide content of this ore was much lower and the principal metallic minerals were pyrite and pyrrhotite. Large pyrite cubes are commonly found in the wallrock of this ore zone. Assays from pyrite in this zone ran up to 2.43 oz/t Au. About 30% of the ore was found within the Porphyry Greenstone Zone. This zone was not identified prior to 1942. The wallrock shows considerable hydrothermal alteration. The zone is also described as being strongly schistose. The West Porphyries Zone comprises 3 separate porphyry bodies: Centre Porphyry, West Porphyry and Lower West Porphyry. The most common ore type occurs in east-west trending fissure fillings ranging in width from a few inches to a maximum of 12 feet. Considerable scheelite is found locally. The West Greenstones Zone lies adjacent to the Paymaster Mine boundary. The ore is in the form of sulphide veins and is a continuation of the ore zones at the Paymaster. Grab samples collected by Midcamp Mines in 1949 returned the following values: 4.63 oz/t Au from the north wall of the #2 Shaft, 5.39 oz/t Au from the surface dump at the #1 Shaft, 1.97 oz/t Au from the corner of the old south Dome claim. Assays from muck and channel samples collected in 1938 returned values of $200.00 over 5.5 ft while the remaining 70 feet of the vein returned $28.00 over 5.5 ft.
| Rank | Classification |
|---|---|
| 1 | Lode (Gold) |
| Rank | Characteristic |
|---|---|
| 1 | Vein |
| Year | Tonnes | Commodities | Reference | Comment |
|---|---|---|---|---|
| 1996 | 5701116 |
Gold 478793081 Grams |
OFR5943, p. 245 | years 1938-68; 1539355 oz Au, 6284405 tons milled at 0.24 oz/ton |
Book - Survey of Mines, p. 141
Publication Number: Date: 1969
Author:
Publisher Name: DEMR
Location:
File - Resident Geologist files T-0109, T-3583
Publication Number: Date:
Author:
Publisher Name:
Location: Timmins RGP office
MonoMap - Geology and ore deposits of Tisdale Township, District of Cochrane
Publication Number: R058 Page: 143-151 Date: 1968
Author: Ferguson S.A., Buffam B.S.W., Carter O.F., Griffis A.T., Holmes T.C., Hurst M.E., Jones W.A., Lane H.C., Longley C.S.
Publisher Name: Ontario Dept. of Mines
Location:
Part - Mines of Ontario in 1936
Publication Number: ARV46-01.003 Page: 193-194 Date: 1997
Author: Sinclair D.G., Tower W.O., Bayne A.S., Cooper D.F., Weir E.B., Webster A.R.
Publisher Name: Ontario Dept. of Mines
Location:
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: 189 Date: 1985
Author: Rose, D.G.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/129999
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:
Mono - Gold deposits of Ontario, part 1, districts of Algoma, Cochrane, Kenora, Rainy River, and Thunder Bay
Publication Number: MDC013 Page: 104-106 Date: 1971
Author: Ferguson S.A., Groen H.A., Haynes R.
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: 29-31 Date: 1998
Author: Riddell G.S.
Publisher Name: Ontario Dept. of Mines
Location:
Book - Preston East Dome Mine; In: Structural Geology of Canadian Ore Deposits, CIM Jubilee Volume
Publication Number: Page: 528-538 Date: 1948
Author: J.E. Hawley and R.C. Hart
Publisher Name: Canadian Institute of Mining and Metallurgy
Location: Timmins RGO
Mono - Report of Activities 1995, Resident Geologists
Publication Number: OFR5943 Page: 245 Date: 1996
Author: Baker C.L., Fyon J.A., Laderoute D.G., Newsome J.W.
Publisher Name: Ontario Geological Survey
Location:
Map - Tisdale Township, Cochrane District
Publication Number: M2075 Scale: 1:12,000 Date: 1998
Author: Ferguson S.A.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Timmins data series, Tisdale Township, District of Cochrane
Publication Number: P2122 Scale: 1:15,840 Date: 1981
Author: MacRae B.A., Maharaj D.
Publisher Name: Ontario Geological Survey
Location:
Map - Geological Compilation of the Timmins Area, Abitibi Greenstone Belt
Publication Number: P3379 Scale: 1:100,000 Date: 1998
Author: Ayer J.A., Trowell N.F.
Publisher Name:
Location:
Map - Timmins, Precambrian geology
Publication Number: M2455 Scale: 1:50,000 Date: 1982
Author: Pyke D.R.
Publisher Name: Ontario Geological Survey
Location:
Publication - Geology, Preston East Dome
Publication Number: Date: 1941
Author: H.M. Butterfield
Publisher Name: CMJ
Location:
Publication - Canadian Mineral Deposits not Being Mined in 1989
Publication Number: MR 223 Page: ONT-271 Date: 1990
Author:
Publisher Name: Energy Mines and Resources Canada
Location: Timmins RGO
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