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Ontario Geological Survey
Permanent Link to this Record:
MDI31E11NE00004
| Record Name(s) | Kearney Graphite Mine - 2006, Cal Graphite Mine - 1996, Main Zone - 1986, Graphite Lake - 1900, McGuire East Zone - 2006 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Developed Prospect With Reported Reserves or Resources |
| Date Created | 1991-Jan-08 |
| Date Last Modified | 2023-Aug-03 |
| Created By | |
| Revised By |
Primary Commodities: Graphite
Township or Area: Butt
Latitude: 45° 43' 31.99" Longitude: -79° 4' 59.55"
UTM Zone: 17 Easting: 649153 Northing: 5065342 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31E11NE
Point Location Description: pit
Location Method: Data Compilation
Access Description: From highway 11, drive 23km east on highway 518 then northeast for another 15km to Graphite Lake.
1917: prospecting. 1942: D.J. Sheehan - staking. 1942: Noranda Mines - exploration. 1974-75: Noranda Exploration Co. Ltd. - ground geophysics, mapping. 1980: J. McVittie, H. Barry, Dravo Corporation- trenching, stripping, mapping, DD-14-4095 feet. 1986-92: Cal Graphite Corporation - DD-56-21,209 feet, pre-feasibility study, trenching, metallurgical testing, bulk sampling; mine commenced operations in 1990-92. 1993-94: Applied Carbon Technology Incorporated - in production. 2000-09: Vinecrest Management Services - data compilation, geophysical survey, prospecting. 2010: Ontario Graphite released a Measured and Indicated Reserve calculation of 43.5 Mtonnes at 2.34% Cg and 12.3 Mtonnes at 2.42% Cg. 2013: Golder Assoc. Indicated & Inferred Resources in the Mcguire Zone (existing open pit) of 80.2 Mtonnes at 2.09 %Cg and in the Sheehan Zone of 18.4 Mtonnes at 2%Cg.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| File 3 Butt Township | 31E11NE0020 | 31E11NE0020 |
| File 5 Butt Township | 31E11NE0017 | 31E11NE0017 |
| File 19 Butt Township | 31E11NE0015 | 31E11NE0015 |
| File 43 Butt Township | 31E11NE2002 | 31E11NE2002 |
| File 45 Butt Township | 31E11NE2004 | 31E11NE2004 |
| File 46 Butt Township | 31E11NE2005 | 31E11NE2005 |
| File 47 Butt Township | 20000000599 | 20000000599 |
| 2.55191 | 20000009078 | 20000009078 |
Province: Grenville
Subprovince: Central Gneiss Belt
Domain: Kiosk
Geological Age: Mesoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Paragneiss | 1 | Garnet-Hornblende-Quartzofeldspathic | Hanging Wall |
|---|---|---|---|---|
| Schist-Unsubdivided | 2 | Graphite-Feldspar-Quartz | Host | |
| Schist-Unsubdivided | 3 | Feldspar-Graphite-Quartz | Host | |
| Gneiss-Unsubdivided | 4 | Quartz-Feldspar-Biotite | Footwall |
Aug 03, 2011 (A Wilson) - The graphitic zone is approximately 2500 m long with a maximum width of 300 m. The graphite horizon strikes northeast and has been traced over a strike length of 2800 feet. The graphite horizon varies approximately between 200 and 500 feet in thickness and dips 30 to 35° to the south. A geophysical anomaly was identified on a zone in the vicinity of McGuire Lake in 1992. Follow up diamond drilling took place on this zone in 1992-1999.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Graphite | Economic | Ore | ||||
| 2 | Pyrite | Economic | Gangue |
Aug 03, 2011 (A Wilson) - The paragneiss often contains up to 3% flake graphite near the contact with marbles. Disseminated graphite, up to 5% also is found in the marble. The graphite occurs as moderately to strongly orientated flakes. There appears to be a correlation between the original clast size, graphite flake size and graphite concentration. Disseminated pyrite is commonly found as a minor constituent of the graphitic horizons. The greatest thickness of graphitic material occurs in the vicinity of a broad structural flexure. The horizon thins rapidly both east and west of the flexure with the graphite becoming more restricted to form distinct upper and lower units with a consistent central waste parting. The McGuire East Zone extends over a strike length of 1000 feet and has a width of approximately 600 feet. The estimated true thickness of the graphitic zone is 150 feet. Graphitic mineralization in this zone is in excess of 1.5% graphite with 60-70% medium to coarse flakes. The East McGuire Zone is estimated to have an unclassified resource of 8.4 million tons grading approximately 2.2% graphite.
| Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
|---|---|---|---|---|---|---|
| McGuire Deposit | 2018 | Probable Mineral Reserve | 23021000 | NI 43-101 March 15, 2018; Ontario Graphite | 23,021,000 tons @1.95% | Graphite 1.95 % |
| Sheehan Zone | 2013 | Inferred Mineral Resource | 18400000 | NI43-101 report by Golder & Associates. | @ 2% Cg. | Graphite 2 % |
| Mcguire Zone | 2013 | Inferred Mineral Resource | 29400000 | NI43-101 report by Golder & Associates. | @2% Cg | Graphite 2 % |
| Mcguire Zone | 2013 | Measured + Indicated Resource | 51500000 | NI43-101 by Golder Associates; OFR6341 p 26 | @ 2.14% Cg | Graphite 2.14 % |
| Mcguire Zone | 2010 | Measured + Indicated Resource | 43500000 | Ontario Graphite Ltd. website | Graphite 2.34 % | |
| East McGuire Zone | 2006 | Unclassified | 7620352 | File 43 Butt Township). | 8.4 million tons grading approximately 2.2% graphite | Graphite 2.2 % |
| Kearny Graphite | 1988 | Unclassified | 16885429 | Butt Township File 28 (1988) | Proven and Probable : 18,613,000 tons | Graphite 2.39 % |
| Cal Graphite | 1988 | Possible | 15957379 | Butt township File 28 | 17,590,000 tons @2.37% | Graphite 2.37 % |
| Year | Tonnes | Commodities | Reference | Comment |
|---|---|---|---|---|
| 1994 | 1000000 |
Graphite 17000 Tonnes |
Ontario Graphite Ltd. website, 22/07/2011 |
File - Resident Geologist files Butt Township 17, 22, 28, 29, 30, 32, 35, 36, 44, 51
Publication Number: Date:
Author:
Publisher Name:
Location: Tweed RGP office
Mono - The geology of the Cal graphite flake graphite deposit
Publication Number: OFR5816 Date: 1991
Author: Garland M.I.
Publisher Name: Ontario Geological Survey
Location:
Publication - Graphite occurrences in the Algonquin region, Grenville province, Ontario
Publication Number: GSC OF 870 Page: 5 Date: 1982
Author: Davidson, A
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/129745
Book - Northern Miner 82-06-17, Graphite, p. A1,A2
Publication Number: NMINER Date: 1982
Author:
Publisher Name: Northern Miner
Location:
Book - Northern Miner 82-07-15, Cool, p. A4
Publication Number: NMINER Date: 1982
Author:
Publisher Name: Northern Miner
Location:
Mono - Graphite in Ontario
Publication Number: IMR020 Page: 40 Date: 1997
Author: Hewitt D.F.
Publisher Name: Ontario Dept. of Mines
Location:
Article - Huntsville Resident Geologist area, Algonquin Region
Publication Number: MP122.010 Page: 242 Date: 1997
Author: Villard D.J., Garland M.I.
Publisher Name: Ontario Geological Survey
Location:
Article - Huntsville Resident Geologist area, Algonquin Region
Publication Number: MP128.011 Page: 276 Date: 1997
Author: Villard D.J., Garland M.I.
Publisher Name: Ontario Geological Survey
Location:
Mono - Graphite in the Central Gneiss Belt of the Grenville Province of Ontario
Publication Number: OFR5649 Page: 82-95 Date: 1987
Author: Garland M.I.
Publisher Name: Ontario Geological Survey
Location:
Article - Huntsville Resident Geologist area, Algonquin Region
Publication Number: MP134.011 Page: 278 Date: 1997
Author: Villard D.J., Garland M.I., Marmont C.
Publisher Name: Ontario Geological Survey
Location:
Article - Algonquin Resident Geologist's District - 1989
Publication Number: MP147.017 Page: 347 Date: 1997
Author: Garland M.I., Villard D.J., Marmont C.
Publisher Name: Ontario Geological Survey
Location:
Article - Algonquin Resident Geologist's District - 1989
Publication Number: MP147.017 Page: 315 Date: 1997
Author: Garland M.I., Villard D.J., Marmont C.
Publisher Name: Ontario Geological Survey
Location:
Article - Algonquin Resident Geologist's District - 1990
Publication Number: MP152.016 Page: 293 Date: 1997
Author: Garland M.I., Villard D.J.
Publisher Name: Ontario Geological Survey
Location:
Article - Algonquin Resident Geologist's District-1991
Publication Number: MP158.018 Page: 341 Date: 1997
Author: Villard D.J., Keevil R., Marmont C.
Publisher Name: Ontario Geological Survey
Location:
Mono - Report of Activities 1993, Resident Geologists
Publication Number: OFR5892 Page: 316 Date: 1994
Author: Baker C.L., Dressler B.O., Mason J.K., Newsome J.W.
Publisher Name: Ontario Geological Survey
Location:
Publication - NI 43-101 Technical Report: Ontario Graphite Ltd. Definitive Feasibility Study Restart of the Kearney Graphite Mine
Publication Number: 2018 NI 43-101 Date: 2018
Author: G. Greenough, V. Liskovych
Publisher Name: Ontario Graphite Ltd
Location:
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For detailed information regarding this mineral record please contact the Southern Ontario Resident Geologist District Office