Ontario Geological Survey
Permanent Link to this Record:
MDI52O07SE00004
| Record Name(s) | Ben Lake Zone #2 - 1963, Caley Lake #3 - 1983 |
|---|---|
| Related Record Type | Simple |
| Record Status | Occurrence |
| Date Created | 1990-Nov-29 |
| Date Last Modified | 2021-Dec-13 |
| Created By | Q Unknown |
| Revised By | Therese Pettigrew |
Primary Commodities: Gold
Township or Area: Caley Lake Area
Latitude: 51° 15' 36.18" Longitude: -90° 31' 13.32"
UTM Zone: 15 Easting: 673008.8 Northing: 5681665.11 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 52O07SE
Point Location Description: Trenches and diamond-drill holes.
Location Method: Conversion from MDI
Access Description: This occurrence is located about 31 km southwest of Pickle Lake and 300 m southwest of the creek mouth at the west end of Bancroft Lake (aka Ben Lake) on the north side of the creek. Access to this occurrence is by appropriately equipped aircraft to Bancroft Lake and then a traverse to the occurrence area. Bancroft Lake is very shallow with a soft bottom and is not recommended for landing in with a large aircraft.
1959: Hasaga Gold Mines Ltd. optioned a claim block covering this occurrence from B. Ohman and K. Koval. Hasaga performed prospecting, geological mapping, trenching and diamond-drilling on the optioned claim block. 1963: Pickle Crow Gold Mines Ltd. sampled 5 trenches on this occurrence and reported significant gold values. 1982: 493217 Ontario Ltd. did ground mag and EM surveys which covered this occurrence. 1983-84: Moss Resources Ltd. conducted geological mapping, mag, EM, IP, rock and soil geochemistry surveys which covered this occurrence. This included trenching and sampling and was followed up by a 20 hole, 1522.78 m, diamond-drill program. 1986: Power Explorations Inc. completed a 16 hole, 1430.43 m, diamond-drilling program on a claim block including 2 DDH totalling 203.25 m on this occurrence. 2010: Tri Origin Exploration Ltd. carried out mapping and sampling.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 52O07SE-021 | 52O07SE0009 | 52O07SE0009 |
| 2.56297 | 20000014671 | 20000014671 |
| 52O07SE-15 | 52O07SE0015 | 52O07SE0015 |
| 2.56234 | 20000014672 | 20000014672 |
| 2.6405 | 52O07SE9401 | 52O07SE9401 |
| 52O07SE-14 | 20000005371 | 20000005371 |
Province: Superior
Subprovince: Uchi
Terrane: North Caribou
Domain: Uchi
Belt: Confederation Lake
Geological Age: Neoarchean
Dec 07, 2005 (B Nelson) - This occurrence is exposed in a series of trenches over an east-trending strike length of about 730 m. The strike length has been extended by diamond-drilling to over 1300 m. Gold mineralization occurs at the contacts of a partially sulphidized iron formation and in the surrounding siliceous metasediments. The sulphides associated with this occurrence are pyrrhotite, pyrite, chalcopyrite and arsenopyrite.
| Rock Type | Rank | Composition | Texture | Relationship | Ironstone-unsubdivided | 1 | Host |
|---|---|---|---|---|
| Terrigenous-Clastic-Unsubdivided | 2 | Siliceous Metasediments | Host | |
| Quartz-Feldspar Porphyry | 3 | Near | ||
| Mafic lava flow-unsubdivided | 4 | Near |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrrhotite | Economic | Ore | ||||
| 2 | Pyrite | Economic | Ore | ||||
| 3 | Arsenopyrite | Economic | Ore | ||||
| 4 | Chalcopyrite | Economic | Ore |
Dec 07, 2005 (B Nelson) - The best assay from the surface expression of this occurrence was 0.10 oz/ton Ay over 60 cm. Diamond-drill holes on this occurrence have returned intersections of: BL-84-10: From 34.23 m to 35.08 m ( 0.85 m total), 0.04 oz/ton Au. BL-84-11: From 31.61 m to 32.70 m (1.09 m total), 0.08 oz/ton Au.
May 29, 2020 (Therese Pettigrew) - Gold mineralization occurs in and at the contacts of the main northern band of iron formation. The zone is intermittently exposed between lines 6+00W and 20+00E. The zone has been trenched where exposed and in 4 of 6 trenches sampled, gold values up to 0.035 oz/ton (1.20 g/t Au) were returned. All trenches exposed the contact zone of the iron formation and all values obtained were either in the contact zone with sediments to the north or mafic metavolcanics to the south. A narrow band of iron formation located between zones 1 and 2 and bounded by lines 18+00E and 20+00E is exposed in a series of trenches. A value of 0.10 oz/ton gold over 2 feet (3.43 g/t Au over 0.61 m) was obtained in the easternmost trench from a sample of iron formation near its contact with a quartz feldspar porphyry sill. Abundant pyrite was present in the iron formation (Assessment report 52O07SE0012). DDH BL-86-9 was designed to test Zone 2. The targeted iron formation did not yield significant assays, but a quartz-carbonate-tourmaline vein yielded 0.024 oz/t Au over 1 foot (0.82 g/t Au over 0.3 m), and an interval of diorite yielded 0.012 oz/t Au over 3.8 feet (0.41 g/t Au over 1.15 m) (Assessment report 52O07SE0009).
Dec 07, 2005 (B Nelson) - Not known.
| Rank | Classification |
|---|---|
| 1 | Lode (Gold) |
| 2 | Replacement |
| Rank | Characteristic |
|---|---|
| 1 | Sheared |
Map - Cat Lake-Pickle Lake, geological compilation series, Kenora and Thunder Bay districts
Publication Number: M2218 Scale: 1:253,440 Date: 1976
Author: Sage R.P., Breaks F.W., Troup W.R.
Publisher Name: Ontario Division of Mines
MonoMap - Geology of the Cat Lake-Pickle Lake area, districts of Kenora and Thunder Bay
Publication Number: R207 Scale: Date: 1982
Author: Sage R.P., Breaks F.W.
Publisher Name: Ontario Geological Survey
Map - Precambrian geology, Muskegsagagen-Bancroft lakes area, District of Kenora (Patricia Portion)
Publication Number: M2507 Scale: 1:50,000 Date: 1986
Author: Stott G.M., Wilson A.C.
Publisher Name: Ontario Geological Survey
Mono - Mineral Deposits of the Central Portion of Uchi Subprovince, Volume 1, Meen Lake to Kesagiminnis Lake Portion
Publication Number: OFR5869 Scale: Date: 1993
Author: Seim G.Wm.
Publisher Name: Ontario Geological Survey
We are continuously updating our assessment file / technical report information. If you notice errors in the data, please contact us.
Please review our Terms of Use agreement for this data product.
For detailed information regarding this mineral record please contact the Thunder Bay North Resident Geologist District Office