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Ontario Geological Survey
Permanent Link to this Record:
MDI42A01NE00021
| Record Name(s) | Sylvanite - 1913 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Past Producing Mine Without Reserves or Resources |
| Date Created | 1985-Oct-24 |
| Date Last Modified | 2023-Apr-12 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Secondary Commodities: Copper, Molybdenum, Silver
Township or Area: Teck
Latitude: 48° 9' 22.38" Longitude: -80° 1' 34.13"
UTM Zone: 17 Easting: 572425 Northing: 5334122 UTM Datum: NAD83
Resident Geologist District: Kirkland Lake
NTS Grid: 42A01NE
Point Location Description: No.2 (main) Shaft
Location Method: AMIS Site Visit
Access Description: The Sylvanite property lies west of the Toburn property in Kirkland Lake, Ontario.
1913 – 1914: Sylvanite Gold Mines Ltd — Trenching and sinking of two prospect shafts (40 and 50 ft). 1916-61: Sylvanite Gold Mines Ltd — sunk and deepened more shafts. No.2 shaft was the main production shaft, 7,420 ft. Underground development; mining. The property had a total of 5 shafts. The mill handled 600 tons per day in 1940. Production was continuous from 1927 until the mill closed down in September 1961.
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Abitibi
Geological Age: Archean
Sep 25, 2014 (J Suma-Momoh) - The southern part of the property is underlain by part of the main syenite porphyry stock in the Kirkland Lake camp. Flanking the main intrusive body to the north is a complex mixture of Timiskaming metasediments (mainly greywacke and conglomerate) and intrusive rocks. These northern intrusions consist of augite syenite and syenite porphyry, both of which form dikes trending N20°E or approximately parallel to the long axis of the main porphyry stock. The strongest and most persistent break in the mine is the zone of maximum displacement of the Kirk land Lake Fault which occurs near the south side of a 1,500-foot wide zone of pre-ore faulting and fracturing. Most of the fractures dip south, some steeply and others at flatter angles. Veins are found in all rock formations within the fractured zone and pass from one rock type into another without any apparent change in strength. The ore shoots were not continuous over great distances, but were a series of bodies having irregular outlines. The Kirkland Lake Fault dips south in the upper part of the mine but swings through the vertical and continues with a northerly dip below the 3,000-foot level. The rocks on the south side of the fault have been thrust upwards with respect to those on the north side. Several post-ore strike faults in the mine dip to the north. The general direction of movement along this set of faults is north side up. Cross faults, the most important of which are the K and Sylvanite Faults, displace the strike faults.
| Rock Type | Rank | Composition | Texture | Relationship | Syenite | 1 | Syenite | Host |
|---|---|---|---|---|
| Felsic lava flow-unsubdivided | 2 | Trachyte | Tuff | Adjacent |
| Conglomerate | 3 | Conglomerate | Pebbly | Adjacent |
| Sandstone | 4 | Greywacke | Adjacent | |
| Diabase | 5 | Diabase Dyke | Intrudes | |
| Syenite | 5 | Augite Syenite | Host |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Gold | Economic | Ore | ||||
| 2 | Quartz | Economic | Gangue | ||||
| 3 | Pyrite | Economic | Gangue | ||||
| 4 | Telluride | Economic | Gangue |
| Year | Tonnes | Commodities | Reference | Comment |
|---|---|---|---|---|
| 1961 | 4580862 |
Gold 52092352 |
OFR 6007 |
File - Resident Geologist files KL-1967, KL-2607
Publication Number: Date:
Author:
Publisher Name:
Location: Kirkland Lake RGP office
Map - Township of Teck, District of Timiskaming, Ontario
Publication Number: M1945-01 Date: 1997
Author: Thomson J.E., Hopkins H., Gerrie W., MacLean A.
Publisher Name: Ontario Dept. of Mines
Location:
Part - Geology of the main ore zone at Kirkland Lake
Publication Number: ARV57-05.002 Page: 177-183 Date: 1998
Author: Thomson J.E., Hawley J.E., Ward W., Perry O.S., Griffin K., Charlewood G.H., Hopkins H., MacIntosh C.G., Ogrizlo S.P.
Publisher Name: Ontario Dept. of Mines
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: 178-179 Date: 1979
Author: Gordon J.B., Lovell H.L., de Grijs J.W., Davie R.F.
Publisher Name: Ontario Geological Survey
Location:
Mono - Mineral resources and mining properties in the Kirkland Lake-Larder Lake area
Publication Number: MDC003 Page: 65-66 Date: 1964
Author: Savage W.S.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Preliminary report on the Timmins-Kirkland Lake area, gold deposits file
Publication Number: OFR5467 Page: G0204 Date: 1983
Author: Hodgson C.J.
Publisher Name: Ontario Geological Survey
Location:
Map - Geological Compilation of the Kirkland Lake Area, Abitibi Greenstone Belt
Publication Number: P3425 Scale: 1:100,000 Date: 2000
Author: Ayer J.A., Trowell N.F.
Publisher Name: Ontario Geological Survey
Location:
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For detailed information regarding this mineral record please contact the Kirkland Lake Resident Geologist District Office