Ontario Geological Survey
Permanent Link to this Record:
MDI000000001647
| Record Name(s) | Laverty Main Zone - 2009, North Madsen Property - 1936 |
|---|---|
| Related Record Type | |
| Related Record(s) | |
| Record Status | Developed Prospect With Reported Reserves or Resources |
| Date Created | 2014-Jan-22 |
| Date Last Modified | 2022-Jan-05 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Heyson
Latitude: 51° 0' 46.36" Longitude: -93° 51' 2.38"
UTM Zone: 15 Easting: 440326.41 Northing: 5651601.25 UTM Datum: NAD83
Resident Geologist District: Red Lake
NTS Grid: 52N04SW
Point Location Description: General
Location Method: Data Compilation
Access Description: The property is located in the Skookum Bay area, approx. 3 km WSW of Red Lake. Access is via trails extending from the west end of Laverty Road in Red Lake.
1936-1938: Dupont-Hodgson Gold Mines Ltd. - Trenching, pitting and drilling. 1947-1951: Laverty Red Lake Mines Ltd. - Trenching and drilling, for a total of 6,036 m. 1971: Cochenour Willans Gold Mines Ltd. - Completed induced polarization (IP)/resistivity (RES) surveys completed. Results are considered ambiguous. 1981: Wilanour Resources Ltd. and Camflo Mines Ltd. - Geological mapping, magnetometer, VLF-EM surveys completed, topographic survey and diamond drilling. 20 BQ diamond drillholes completed for a total of 2,064 m. 2009- 2010: Mega PreciousMetals Inc. - Drilled 36 holes for a total of 6,176 m, 138 line km of airborne EM/magnetic survey, 35 channel totallimg 94.6 m. 2011: Mega Precious - 50 DDH totalling 13,231 m on the Laverty zone, and 29 DDH totalling 6853 m on the East My-Ritt zone. 2012: Mega Precious drilled 25 holes totalling 8,210 m with 17 holes (6226.3 m) being on the Buffalo Extension, 4 holes (1061 m) on the Central zone and 4 holes (922.7 m) on the South zone.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 63.2898 | 52N04SE0152 | 52N04SE0152 |
| 63.2969 | 52N04SW0080 | 52N04SW0080 |
| 63.3565 | 52N04SW0208 | 52N04SW0208 |
Province: Superior
Subprovince: Uchi
Terrane: North Caribou
Domain: Uchi
Belt: Red Lake
Geological Age: Neoarchean Geochronological Age: 2718 +/-1Ma Geochron. Age Ref.: Corfu and Andrews 1987
Metamorphism Type: Regional
Metamorphism Grade: Greenschist
Jan 20, 2015 (Therese Pettigrew) - The property is underlain by the Dome Stock, which is predominantly comprised of porphyritic granodiorite, which is texturally massive. Minor areas of the stock are quartz monzonite to granite in composition. The granodiorite is grey to pinkish grey and coarse grained. In areas of intense shearing and adjacent to quartz veins and dykes, the granodiorite is commonly altered to a dark grey as a result of chloritization and silicification. Detailed mapping has discovered additional narrow (8 m x 3 m wide) fine-grained magnetic mafic dykes trending ENE and NNW. Alteration adjacent to the Laverty Dyke is noted by a darker grey than pinkish and the country rocks are rusty owing to alteration of carbonate minerals. The Laverty Dyke trends 340 degrees with a maximum width of 15 m and a strike length of greater than 300 m. The dyke is massive, medium grained and composed of amphibole and plagioclase in a dark grey fine grained matrix of mafic minerals. The rock is magnetic and contains minor to trace amounts of pyrrhotite and pyrite. Structural mapping indicates the major fracture directions are NNW and ENE. The east-northeast fractures are parallel to the mafic dykes and both fracture sets have associated mineralized quartz veins. The NNW fracture set is a preferred direction for shear fractures and faults with dextral offsets. A third set of fractures with sinistral offsets trending NE is also associated with mineralized quartz veins. The NNW direction is the preferred orientation for shear fractures and faults (dextral offset) along with a third major set trending NE (sinistral offset) which also has associated mineralized quartz veins.
| Rock Type | Rank | Composition | Texture | Relationship | Granodiorite | 1 | Is |
|---|---|---|---|---|
| Gabbroid-Unsubdivided | 1 | Chloritized Mafic To Intermediate | Dyke | Intrudes |
Jan 20, 2015 (Therese Pettigrew) - The Laverty Main Zone is located in the NE portion of the Laverty claim block, SE of the Laverty Dyke. It is a SW-NE-trending zone of mineralization which is characterized by two distinct sections, named the West Shear and the East Shear. The lithology of the Main Zone dominantly comprises granodiorite belonging to the Dome Stock. The granodiorite is moderately to strongly sheared with common faults and fractures. Strongly chloritized mafic to intermediate dykes are also commonly observed across the zone within the granodiorite.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Gold | Economic | Ore | ||||
| 2 | Chalcopyrite | Economic | Ore | ||||
| 3 | Arsenopyrite | Economic | Ore | ||||
| 4 | Pyrite | Economic | Ore | ||||
| 5 | Tourmaline | Economic | Gangue | ||||
| 6 | Quartz | Economic | Gangue |
Jan 20, 2015 (Syed Ali) - Mineralization in the Main Zone occurs in two distinct forms: structurally hosted within sheared granodiorite and in quartz-tourmaline veins. Mineralization hosted by sheared granodiorite is present throughout the Main Zone, whereas mineralized quartz-tourmaline veins are only locally common in the eastern half of the Main Zone. Three solids have been created based on geology and structure: the West Shear, the East Shear, and Quartz Veins.
Jan 30, 2015 (Therese Pettigrew) - The Laverty Main Zone is a SW-NE trending zone of mineralization which is characterized by two distinct sections, named the “West Shear” and the “East Shear”. Mineralization in the Main Zone occurs in two distinct forms: structurally-hosted within sheared granodiorite, and in quartz-tourmaline veins. Mineralization hosted by the sheared granodiorite is present throughout the Main Zone, whereas mineralized quartz-tourmaline veins are only locally common in the eastern half of the Main Zone (2014 NI 43-101 report). Drill results from the Main Zone include the following: DDH ML1051: 26.0-33.36 m: 0.87 g/t; 80.0-81.9 m: 1.97 g/t; 131.8-137.0 m: 1.55 g/t; 192.5-198.5 m: 1.79 g/t DDH ML1053: 194.0-200.0 m: 1.88 g/t DDH ML1054: 157.5-163.54 m: 3.48 g/t (Mega Precious Metals June 7, 2010 press release)
| Rank | Classification |
|---|---|
| 2 | Hydrothermal |
| 1 | Lode (Gold) |
| Rank | Characteristic |
|---|---|
| 1 | Sheared |
| 2 | Vein |
| Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
|---|---|---|---|---|---|---|
| All Zones | 2014 | Inferred Mineral Resource | 10138000 | Mega Precious NI 43-101 March 27, 2014 | 383,936 oz Au | Gold 1.18 Grams per Tonne |
| All Zones | 2014 | Measured + Indicated Resource | 22958910 | Mega Precious NI 43-101 March 27, 2014 | 888,752 oz Au | Gold 1.20 Grams per Tonne |
| Laverty Main Zone | 2014 | Inferred Mineral Resource | 4526000 | Mega Precious NI 43-101 March 27, 2014 | 190,928 oz Au; 0.6 g/t Au cutoff | Gold 1.31 Grams per Tonne |
| Laverty Main Zone | 2014 | Measured + Indicated Resource | 19013410 | Mega Precious NI 43-101 March 27, 2014 | 739995 oz Au; 0.6 g/t Au cutoff | Gold 1.21 Grams per Tonne |
| Main Zone | 2011 | Inferred Mineral Resource | 5385000 | Mega Precious Metals Inc. 43-101, Oct 21, 2011 | 1.0 g/t Au | |
| Main Zone | 2011 | Indicated Mineral Resource | 2967800 | Mega Precious Metals Inc. 43-101, Oct 21, 2011 | 1.08 g/t Au | |
| Main Zone | 2011 | Measured Mineral Resource | 18052860 | Mega Precious Metals Inc. 43-101, Oct 21, 2011 | 1.26 g/t Au |
Publication - Technical Report and Resource Estimate on the North Madsen Property. 137 p
Publication Number: 2011 43-101 Date: 2011
Author: T. McCracken and M. Harder
Publisher Name:
Location:
Publication - Technical Report and Updated Resource Estimate, North Madsen Property. Red Lake, Ontario
Publication Number: 2014 43-101 Date: 2014
Author: McCracken, T.
Publisher Name: WSP / Mega Precious Metals
Location: Mega Precious Metals website
Map - Heyson Township, northern part, Kenora District
Publication Number: M2125 Scale: 1:12,000 Date: 1968
Author: Ferguson S.A.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Heyson Township, northern part, District of Kenora (Patricia Portion)
Publication Number: P0208 Scale: 1:12,000 Date: 1997
Author: Ferguson S.A.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Precambrian Geology, Heyson Township
Publication Number: P3197 Scale: 1:12,000 Date: 1993
Author: Atkinson B.T.
Publisher Name: Ontario Geological Survey
Location:
Map - Precambrian Geology, Red Lake
Publication Number: P3227 Scale: 1:50,000 Date: 1993
Author: Atkinson B.T., Stone D.
Publisher Name: Ontario Geological Survey
Location:
Map - Red Lake-Birch Lake sheet, geological compilation series, Kenora District
Publication Number: M2175 Scale: 1:253,440 Date: 1970
Author: Ferguson S.A., Davies J.C., Brown D.D., Pryslak A.P.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Red Lake gold area, District of Patricia, Ontario
Publication Number: ARM35E Scale: 1:126,720 Date: 1997
Author: Bruce E.L.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Red Lake gold area, District of Kenora, Ontario (Patricia Portion)
Publication Number: ARM36D Scale: 1:63,360 Date: 1998
Author: Bruce E.L., Hawley J.E.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Gold occurrences, prospects, and deposits of the Red Lake area, volumes 1 and 2
Publication Number: OFR5558 Page: 511-512 Date: 1987
Author: Durocher M.E., Burchell P.S., Andrews A.J.
Publisher Name: Ontario Geological Survey
Location:
Map - Geology and gold mineralization, Red Lake greenstone belt
Publication Number: P3107 Scale: 1:50,000 Date: 1991
Author: Durocher M.E., Burchell P.S., Wallace H., Andrews A.J., Hugon H., Atkinson B.T.
Publisher Name: Ontario Geological Survey
Location:
Map - Geology and Tectonostratigraphic Assemblages, East Uchi Subprovince, Red Lake and Birch-Uchi Belts, Ontario
Publication Number: P3460 Scale: 1:250,000 Date: 2004
Author: Sanborn-Barrie M., Rogers N., Skulski T., Parker J.R., McNicoll V.J., Devaney J.R.
Publisher Name: Geological Survey of Canada, Ontario Geological Survey
Location:
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