Ontario Geological Survey
Permanent Link to this Record:
MDI000000001162
| Record Name(s) | Madonna Dyke - 2015, Killala Lake South - 2006, Wahl Diamond Occurrence - 2011 |
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| Record Status | Occurrence |
| Date Created | 2011-Mar-24 |
| Date Last Modified | 2022-Jul-15 |
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| Revised By |
Primary Commodities: Diamond
Township or Area: Foxtrap Lake Area
Latitude: 48° 59' 48.89" Longitude: -86° 35' 3.29"
UTM Zone: 16 Easting: 530411 Northing: 5427196 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 42D15NE
Point Location Description: SW of Killala lake
Location Method: Field Visit with GPS
Access Description: The property is located approximately 70 km from the town of Marathon and can be accessed by a network of logging roads.
2006: R. Wahl collected a bulk sample. 2006-7: R. Whal and Ressources Dianor conducted till sampling and a ground magnetics geophysical survey. 2014-15: R. Wahl conducted prospecting and geological mapping.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.40595 | 20000003899 | 20000003899 |
| 2.55821 | 20000014696 | 20000014696 |
| 2.35869 | 20000000015 | 20000000015 |
Province: Superior
Geological Age: Archean
Mar 24, 2011 (J Scott) - diamond-bearing kimberlitic dike
| Rock Type | Rank | Composition | Texture | Relationship | Lamprophyre-Unsubdivided | 1 |
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| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Diamond | Economic | Ore |
Jan 22, 2018 (Therese Pettigrew) - A 1,205.80 kg sample of lamprophyre dyke was collected and sent for diamond recovery. A total of 66 microdiamonds were recovered from the sample: 1 - 0.150 mm, 3 - 0.212 mm, 1 - 0.300 mm, 40 - 0.425 mm, 13 - 0.600 mm, 7 - 0.85o mm, and 1 - 1.180 mm in size, with a total weight recovered of 0.23285 carats. The diamonds are white, green, yellow, grey, and brown (AFRI 20000003899). In 2014, Dr. Shannon Zurevinski from Lakehead University visited the property and discovered a yellow diamond when she broke open a rock sample (AFRI 2.55821).
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For detailed information regarding this mineral record please contact the Thunder Bay South Resident Geologist District Office