Ontario Geological Survey
Permanent Link to this Record:
MDI42E10NE00019
| Record Name(s) | West-Side Longlac Occurrence - 9999 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 1997-Feb-03 |
| Date Last Modified | 2022-Sep-27 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Coltham
Latitude: 49° 39' 11.78" Longitude: -86° 41' 32.76"
UTM Zone: 16 Easting: 522200.562 Northing: 5500126.443 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 42E10NE
Point Location Description: Stripped areas and diamond drill holes.
Location Method: Other Literature
Access Description: The claims are located in the northeast corner of Coltham Township, on the east side of West Side Bay. The property can be reached by travelling the Trans Canada Highway 11, 9.5 km east from the turn-off to Geraldton (Highway 584), and southeast on Eldee Lake Road to Long Lake. From this point, the property is accessible by boat, approximately 6.5 km to the northeast on Long Lake. Alternatively, the occurrence is accessible by boat from Longlac.
1933: Claims covering the occurrence were staked. 1934: Surface exploration was conducted; claims transferred to West-Side Longlac Gold Mines Ltd. Further surface work was done. 1935: The claims were transferred to D.R. Michener (Vice-President of West-Side Longlac) and surface exploration con't. 1936: Trenching and diamond-drilling were done by West-Side Longlac. 1942: Claims were patented and the company was listed as inactive in the Canadiam Mines Handbook (1942). 1949: The company was dissolved and the patents later revoked. 1972-1983: Ground was dropped and staked a couple of times, eventually being transferred to Mike Malouf. 1984: A grid was cut, and mag and EM surveys were conducted, and power stripping was done. 1985: Claims held by Michael Malouf and are part of an 11 claim block.
Province: Superior
Geological Age: Archean
Dec 07, 2005 (B Nelson) - All the consolidated rocks are Precambrian. These are overlain by sands and gravels of glacial origin and in places by peat of poor quality. The pre-cambrian rocks include highly altered basic lavas, agglomerate, horneblende, chlorite, and biotite schists which are grouped as Keewatin; conglomerate, greywacke, arkose, iron formation, and quartzite, grouped as Timiskaming; granite, granodiorite, quartz diorite, diorite, and quartz and feldspar porphyries, probably later than the sediments; and diabase dykes, which are definitely younger than the other rocks of the area and are grouped in the Keweenawan. Two shear zones have been noted; the first is in banded iron formation which is associated with a feldspar-quartz porphyry dyke, and the second is in porphyry clasts immediately north of a coarse white feldspar porphyry. The shear zone to the north (in banded iron formation) strikes N75 degrees E and contains quartz stringers and sheared lens-like veinlets which carry a considerable amount of pyrite. In the shear zone to the south, small stringers and lenses of quartz carry py, asp and gn. Calcite is present in this zone.
| Rock Type | Rank | Composition | Texture | Relationship | Mafic lava flow-unsubdivided | 1 | Near |
|---|---|---|---|---|
| Schist-Unsubdivided | 2 | Hb/Chl/Bio Schists | Near | |
| Sandstone | 3 | Greywacke | Near | |
| Sandstone | 4 | Arkose | Near | |
| Ironstone-unsubdivided | 5 | Sheared | Host | |
| Granite | 6 | Near | ||
| Quartz Diorite | 7 | Quartz-Diorite | Near | |
| Diorite | 8 | Diorite | Near | |
| Quartz-Feldspar Porphyry | 9 | Quartz-Feldspar | Near | |
| Diabase | 10 | Diabase | Near |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Ore | ||||
| 2 | Arsenopyrite | Economic | Ore | ||||
| 3 | Galena | Economic | Ore | ||||
| Quartz | Alteration | Silicification | 1 |
Dec 07, 2005 (B Nelson) - No visible gold has been reported in either of the zones. The north shear zone has been traced for 243.8 m east from the shore of West Side Bay, the western 6.0 m of which has a maximum width of 6.1 m. Results of the diamond drilling were reported as 'encouraging.' The south zone has been traced for at least 76.2 m and its width varies from 0.3 m to 12.2 m. Drilling results are reported as less encouragine than those obtained from the north zone.
Date: Feb 03, 1997
Geologist: B Nelson
Notes: The Beardmore-Geraldton Economic Geologist visited the occurrence September 26, 1985.
Map - Long Lake-Pagwachuan Lake area, District of Thunder Bay, Ontario
Publication Number: ARM46B Scale: 1:63,360 Date: 1997
Author: Fairbairn H.W., Macdonald R.D.
Publisher Name: Ontario Dept. of Mines
Location:
Part - Geology of the northern Long Lake area
Publication Number: ARV46-03.001 Date: 1997
Author: Fairbairn H.W.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Compilation series, Geraldton sheet, Thunder Bay and Cochrane districts
Publication Number: P0241 Scale: 1:126,720 Date: 1984
Author: Stott G.M., McConnell C.D., Mason J.K.
Publisher Name: Ontario Geological Survey
Location:
Mono - Gold occurrences, prospects, and deposits of the Beardmore-Geraldton area, districts of Thunder Bay and Cochrane
Publication Number: OFR5630 Date: 1986
Author: Mason J.K., White G.D.
Publisher Name: Ontario Geological Survey
Location:
Map - Mineral deposits series, Ontario mineral potential, Longlac sheet, districts of Thunder Bay and Cochrane
Publication Number: P1527 Scale: 1:250,000 Date: 1978
Author: Springer J.S.
Publisher Name: Ontario Geological Survey
Location:
Map - Tashota-Geraldton sheet, geological compilation series, Thunder Bay and Cochrane districts
Publication Number: M2102 Date: 1997
Author: Pye E.G., Harris F.R., Fenwick K.G., Baillie J.
Publisher Name: Ontario Dept. of Mines
Location:
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