Ontario Geological Survey
Permanent Link to this Record:
MDI000000003127
| Record Name(s) | K9 Graphite - 2020 |
|---|---|
| Related Record Type | |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 2022-Aug-15 |
| Date Last Modified | 2023-Dec-01 |
| Created By | |
| Revised By |
Primary Commodities: Graphite, Marble (high purity/flux)
Township or Area: Brougham
Latitude: 45° 14' 58.95" Longitude: -77° 1' 26.33"
UTM Zone: 18 Easting: 341174 Northing: 5012683 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
Point Location Description: Sample K9-22-1 location.
Location Method: Field Visit with GPS
Access Description: Property is located at km 9 on the Doorley Creek logging road.
2018: Graphite occurrences discovered by M. Duguet mapping were published in P3807. 2020: Initial claims registered by J. Martin & J. Andreana. 2022: Prospecting, sampling and reconnaissance have continued each field season.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 77159, 4422 | 20000020159 | 20000020159 |
Province: Grenville
Terrane: Bancroft
Domain: Black Donald
Dec 01, 2023 (Mateo Dorado-Troughton) - "The K9 graphite-marble prospect is located in the Centennial Lake area of the Black Donald domain in the northeastern part of the Central Metasedimentary Belt of the Grenville Province. The Black Donald domain can be subdivided into 3 lithostructural units: from west to east, they are the Lower, Intermediate, and Upper units. The K9 property lies across the thrust fault that separates the Lower unit from the Intermediate unit, although the K9-mineralization and the Doorley Creek Road area are within the Lower unit. The Intermediate unit is predominated by calcitic and dolomitic marbles that occupy the core of a northeast-trending megasynform. The dolomitic marbles are clean, white to grey, coarse grained and massive. They are in stratigraphic contact with siliciclastic units that include rusty schists that host graphite-pyrrhotite mineralization (Duguet, Duparc and Mayer 2018). The Lower unit appears to be the least lithologically complex of the 3 units. It hosts a large amphibolite unit at its centre and has a core of calcitic marble. The amphibolite units intrude the supracrustal rocks and it is likely that they were originally mafic sills." - from OFR6404
| Rock Type | Rank | Composition | Texture | Relationship | Calcite Marble | 1 | Graphitic | Coarse Grained | Host |
|---|
Dec 01, 2023 (Mateo Dorado-Troughton) - "The main location studied and sampled was the roadside outcrop near the kilometre 9 marker. In outcrop, metre-wide fracture zones undulate across the marble. The unfractured, clean marble is pale-blue, coarse grained and competent. The fractured zones are white yellow, slightly crumbly and are potentially altered or preferentially weathered. Disseminated graphite mineralization is consistent throughout the outcrop, on both sides of the road and along strike. Graphite is found as medium- to coarse-grained, round flakes interstitial to the calcite crystals." - from OFR6404
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Graphite | Economic | Ore | ||||
| 2 | Calcite | Economic | Ore |
Dec 01, 2023 (Mateo Dorado-Troughton) - "Two samples (JM-21-01 and JM-21-02) were sent to Activation Laboratories Ltd. (Ancaster) for graphitic carbon infrared analysis, and mineralogy and grain-size analysis, respectively. Both samples were from the same outcrop (UTM 341230E 5012761N) of coarse-grained, white yellow, calcitic marble with disseminated, round graphite flakes up to 4 mm in diameter. Sample JM-21-01 returned 0.39% graphitic carbon and JM-21-02 returned 1.13 weight % graphite and 91.21 weight % calcite. Grain-size analysis was completed on JM-21-02 as well, although testing occurs after sample processing that reduces the grains to be smaller than 1 mm, so most of the grains appeared to be fine grained. Grain liberation testing showed that, after crushing to 1 mm, 26% of the graphite area was free, 63% was locked in calcite and the remaining 11% was locked in other minerals." - from OFR6404
| Commodity | Analytical Method | Digestion Method | Result | Unit | Limit | Qualifier |
|---|---|---|---|---|---|---|
| Calcite | Unknown | 91.21 | % | |||
| Graphite | Unknown | 1.13 | % | |||
| Graphite | Tot Carbon & Sulphur | .39 | % | .05 |
| Rank | Classification |
|---|---|
| 1 | Industrial |
| Rank | Characteristic |
|---|---|
| 1 | Disseminated |
Date: Jun 30, 2022
Geologist: Mateo Dorado-Troughton
Notes: Property was visited by the Southern Ontario RRG and DG. A sample of blue calcitic marble and sample of graphitic calcitic marble was collected.
Map - Precambrian Geology of the Centennial Lake Area, Grenville Province
Publication Number: P3807 Scale: 1:20,000 Date: 2018
Author: Duguet M., Duparc Q.
Publisher Name: Ontario Geological Survey
Location:
MonoMap - Tectonic and Metamorphic Architecture of the Northeastern Composite Arc Belt and the Central Metasedimentary Belt Boundary Tectonic Zone, Grenville Orogen: A Geological Guidebook
Publication Number: OFR6331 Page: 7 Date: 2017
Author: Duguet M., Easton R.M.
Publisher Name: Ontario Geological Survey
Location:
Publication - Report of Activities 2022, Resident Geologist Program, Southern Ontario Regional Resident Geologist Report: Southeastern and Southwestern Ontario Districts and Petroleum Operations
Publication Number: OFR6404 Page: 36 Date: 2023
Author: Mancini L.A., Dorado-Troughton M., Swiercz J., LeBaron P.S., Hinz S.L.K., Sabiri N., Dorland G.
Publisher Name: Ontario Geological Survey
Location:
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