Ontario Geological Survey
Permanent Link to this Record:
MDI000000002355
| Record Name(s) | Missing Link - 1986, Jory Lake - 1986 |
|---|---|
| Related Record Type | Partial |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 2019-Oct-31 |
| Date Last Modified | 2024-Apr-03 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Lapierre, Legault
Latitude: 49° 45' 17.26" Longitude: -87° 27' 5.75"
UTM Zone: 16 Easting: 467471 Northing: 5511466 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 42E11NW, 42E14SW
Point Location Description: Map in Assessment file 42E14SW0035 and trenches seen on Google Earth
Location Method: Data Compilation
Access Description: The property is accessible from the Kinghorn Road via an old bush road at a point approximately 8 km north of Highway 11.
1986: showing was discovered by N. Cox and carried out trenching and sampling. The property was optioned to Golden Earth Resources Ltd. 1987: Golden Earth conducted an airborne magnetometer and VLF-EM survey. 1989: N. Cox carried out stripping and sampling. The property was optioned to Homestake Mineral Development Company in December. 1990: Homestake carried out geological mapping, sampling, ground magnetometer and VLF-EM surveys. 1991: Placer Dome Inc. drilled 5 DDH totalling 1548 m. 1994: N. Cox carried out prospecting, trenching, and sampling. 2008: Sage Gold Inc. carried out magnetic and HLEM surveys. 2009: Sage Gold conducted helicopter-borne magnetic and VTEM surveys.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 20 | 42E14SW0003 | 42E14SW0003 |
| 22 | 42E11NW0031 | 42E11NW0031 |
| 2.15850 | 42E14SW0035 | 42E14SW0035 |
| 63.5592 | 42E14SW0008 | 42E14SW0008 |
| 63.6036 | 42E14SW0001 | 42E14SW0001 |
| 2.13579 | 42E14SW0004 | 42E14SW0004 |
| 2.39951 | 20000003645 | 20000003645 |
Province: Superior
Subprovince: Wabigoon
Belt: Beardmore-Geraldton
Geological Age: Archean
| Rock Type | Rank | Composition | Texture | Relationship | Mafic lava flow-unsubdivided | 1 |
|---|---|---|---|---|
| Terrigenous-Clastic-Unsubdivided | 2 |
Oct 31, 2019 (Therese Pettigrew) - The Jory Lake-Lapierre Township area is underlain by intermediate to mafic metavolcanic rocks in fault contact with metasediments to the south. Metasediments consist of polymictic conglomerate and feldspathic sandstone. Regional foliation trends approximately 080 degrees and younging directions in pillows west of Jory Lake is to the south. A major 080 degree-striking lineament extends through Jory Lake and may be the eastern extension of the Paint Lake Fault - a major transcurrent fault (Mason et al., 1989).
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Hematite | Economic And Alteration | |||||
| 1 | Pyrite | Economic | Ore | ||||
| 2 | Arsenopyrite | Economic | Ore | ||||
| 1 | Epidote | Alteration | |||||
| 2 | Carbonate | Alteration | |||||
| 3 | Chlorite | Alteration | |||||
| 4 | Sericite | Alteration |
Oct 31, 2019 (Therese Pettigrew) - Gold mineralization is associated with sheared and altered, mafic metavolcanics north of Jory Lake known as the Missing Link Occurrence. The shear zone is estimated to be 60 m (200 feet) to 90 m (300 feet) wide with present exposure. Disseminated, foliation-parallel, euhedral pyrite and arsenopyrite, within zones of both shearing and quartz-carbonate veining, host the gold mineralization. Pervasive carbonatization and more local and erratic silicification are also present. An altered diorite unit may be present apparently within the limits of the shear zone. The North zone, Shaft Pit, and Baseline Trenches have been sampled to date. The North zone strikes 085 degrees and dips 061 S. The property vendor has received assay values of up to 0.256 oz/t Au across 1.8 m (6 feet) on the North zone (Nolan Cox, Prospector, Beardmore, personal communication, October 5, 1988). Grab samples collected by the authors from all pits and trenches on the property assayed up to 0.14 oz/t Au (Mason et al., 1989). Samples collected in 1986 returned values of up to 2.6 g/t Au were obtained from mafic volcanics with carbonate-sericite-silica alteration, and up to 17.9 g/t Au from a thin quartz-arsenopyrite vein hosted within this material. DDH 466-002 intersected 0.6 g/t Au over 1.5 m from a zone of shearing, quartz veining and sulphides (Assessment report 42E14SW0003).
Article - Beardmore-Geraldton Resident Geologist's District - 1988
Publication Number: MP142.006 Page: 125-126 Date: 1997
Author: Mason J.K., White G.D., Speed A.A., Gaudino S.
Publisher Name: Ontario Geological Survey
Location:
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