Ontario Geological Survey
Permanent Link to this Record:
MDI42E11NE00010
| Record Name(s) | Tombill Main - 1940, Tombill Prospect - 1940, Main Group West - 1940 |
|---|---|
| Related Record Type | Partial |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1991-Jan-12 |
| Date Last Modified | 2022-May-09 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Errington
Latitude: 49° 41' 5.59" Longitude: -87° 1' 21.65"
UTM Zone: 16 Easting: 498364 Northing: 5503596 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 42E11NE
Point Location Description: Diamond drill holes on map in Assessment file 42E11NE0003
Location Method: Conversion from MDI
Access Description: The claims are located in south central Errington Township immediately east of Longacre Lake. The claims are easily accessible by Trans Canada Highway 11, which passes through the north claim approximately 6.5 km west of the turn-off to Geraldton (Highway 584).
Showings are located on claims TB10849 and TB10854, so the history of both is given, though it should be noted that they are part of a much larger claim block held by Tombill Mines Ltd. 1932: Claim TB10849 was staked by Eric Frederickson for Harry McInroy, and claim TB10854 was staked by Tom Christianson for Gertrude C. West. 1933: Both claims were transferred to T.A. Johnson who applied for a Mining Operation Permit and filed 30 days assessment work on each claim. 1935: Surface exploration and 6553.2 m of diamond drilling were done on the claim block by the Oro Plata Mining Co., which managed Longlac Lagoon Mines Ltd. 1936: Elmos Gold Mines Ltd. was incorporated to take over Longlac Lagoon Gold Mines Ltd., and performed surface work on the claims. 1940: Tombill Gold Mines acquired the assets of Elmos Gold Mines Ltd. No work was performed on the property. 1940s: Diamond drilling and geophysics were performed by Tombill. 1959: Tombill Gold Mines Ltd. changed its name to Tombill Mines Ltd. 1974: Tombill Mines Limited conducted VLF, mag, geological and geochemical (soil) surveys on the claim block. 1979: Airborne mag and EM surveys were conducted by Tombill Mines Ltd. 1980: Diamond drilling was conducted elsewhere on the claim block. 1980: Roxmark Mines Ltd. acquired the property. 1980s: Roxmark drilled 12 DDH.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 63.3224 | 42E10NW0180 | 42E10NW0180 |
| 63.4763 | 42E11NE0003 | 42E11NE0003 |
Province: Superior
Subprovince: Wabigoon
Belt: Beardmore-Geraldton
Geological Age: Archean
Dec 07, 2005 (B Nelson) - Pye (1951) has noted that: surface trenching and diamond drilling have disclosed the presence of several quartz veins and stringers scattered along a zone of shearing in conglomerate. This zone dips steeply to the south and strikes east-west.
| Rock Type | Rank | Composition | Texture | Relationship | Conglomerate | 1 | Sheared | Host |
|---|---|---|---|---|
| Vein | 2 | Quartz | Host |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Arsenopyrite | Economic | Ore | ||||
| 2 | Pyrite | Economic | Ore | ||||
| 1 | Quartz | Economic | Gangue | ||||
| Quartz | Alteration | Silicification | 1 | Unknown | Disseminated |
Dec 07, 2005 (B Nelson) - The gold content is low; the best intersection noted averaged 0.26 oz/ton gold over 0.3 m (Pye 1951).
Dec 04, 2018 (Therese Pettigrew) - Pye (1951) has noted that: "...surface trenching and diamond drilling have disclosed the presence of several quartz veins and stringers scattered along a zone of shearing in conglomerate. This zone dips steeply to the south and strikes east-west." Mineralization includes pyrite and arsenopyrite (Pye, 1951).
Map - Little Long Lac gold area, District of Thunder Bay, Ontario
Publication Number: ARM44D Scale: 1:31,680 Date: 1997
Author: Bruce E.L.
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:
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:
Part - Geology of Errington Township, Little Long Lac area
Publication Number: ARV60-06 Date: 1997
Author: Pye E.G.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Township of Errington, District of Thunder Bay, Ontario
Publication Number: M1951-07 Scale: 1:12,000 Date: 1997
Author: Horwood H.C., Pye E.G.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Gold occurrences, prospects, and deposits of the Beardmore-Geraldton area, districts of Thunder Bay and Cochrane
Publication Number: OFR5630 Page: 585-586 Date: 1986
Author: Mason J.K., White G.D.
Publisher Name: Ontario Geological Survey
Location:
File - Resident Geologist Mineral Deposit Files
Publication Number: Min Dep Date:
Author:
Publisher Name:
Location: Thunder Bay RGP
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:
Map - Thunder Bay data series, Geraldton area, Thunder Bay District
Publication Number: P2520 Scale: 1:15,840 Date: 1982
Author: Love W.D.
Publisher Name: Ontario Geological Survey
Location:
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