Ontario Geological Survey
Permanent Link to this Record:
MDI52G05NW00009
| Record Name(s) | Boulder Train - 2004 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 2004-Feb-11 |
| Date Last Modified | 2023-May-19 |
| Created By | |
| Revised By |
Primary Commodities: Lithium, Cesium, Rubidium, Tantalum
Township or Area: Raleigh Lake Area
Latitude: 49° 24' 34.17" Longitude: -91° 56' 55.41"
UTM Zone: 15 Easting: 576260 Northing: 5473510 UTM Datum: NAD83
Resident Geologist District: Kenora
NTS Grid: 52G05NW
Point Location Description: N/A
Location Method: Based on Assessment
Access Description: The property is located 25 km west of Ignace and can be accessed year round from logging roads off the TransCanada highway.
1997-98: R. Fairservice, S. Johnson, J. Bond staked claims over the area and discovered a boulder train containing pegmatites with rare earths. 1998-2000: Avalon Ventures Ltd. optioned the property and conducted prospecting. 2016: International Lithium Corp. acquired the property.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.44975 | 20000004647 | 20000004647 |
| 2.20005 | 52G05NW2003 | 52G05NW2003 |
Province: Superior
Subprovince: Wabigoon
Belt: Raleigh Lake
Geological Age: Archean
Jul 25, 2017 (Therese Pettigrew) - The Raleigh Lake property is predominantly underlain by Archean supracrustal comprised essentially of mafic metavolcanics and their derived metasedimentary equivalents, which both overlie and are intruded by granitic plutons and batholiths of various ages and chemistry. The metavolcanics comprise the Raleigh Lake greenstone belt, which is intruded by various of these granitoids, including the peraluminous (S-type) Revell Lake batholith. The Revell Lake batholith is believed to exhibit an alteration front which has recently been identified and mapped by the OGS as a "two-mica" granite, and is believed to be parental to the rare element pegmatites of the Raleigh Lake pegmatite field. Regional folding and doming outlined by OGS mapping provide excellent structural traps for potential pegmatite emplacement (AFRI 52G05NW2003).
| Rock Type | Rank | Composition | Texture | Relationship | Pegmatite | 1 | Host |
|---|---|---|---|---|
| Mafic lava flow-unsubdivided | 2 | Adjacent | ||
| Intermediate lava flow-unsubdivided | 3 | Adjacent |
Jul 25, 2017 (C Ravnaas) - Grab samples from boulder train (representing hidden pegmatite field), 250m SW of pegmatite 1, consisted of rusty volcanics with 1500 ppm Cs, 1400 ppm Rb and 1210 ppm Li (KAF 52G05NW K-3).
Jul 25, 2017 (Therese Pettigrew) - Assays from some of the boulders ranged from 0.01 to 0.10% Ta2O5 (AFRI 52G05NW2003).
File - Resident Geologist files 52G05NW K-3
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Location: SSM RGP office
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For detailed information regarding this mineral record please contact the Kenora Resident Geologist District Office