Ontario Geological Survey
Permanent Link to this Record:
MDI52N04SW00085
| Record Name(s) | Laverty Dyke Gold Zone - 2009, North Madsen Property - 2009, Thrall Property - 1981 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Developed Prospect With Reported Reserves or Resources |
| Date Created | 1991-Mar-11 |
| Date Last Modified | 2022-Oct-13 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Dome, Heyson
Latitude: 51° 1' 5.75" Longitude: -93° 50' 49.08"
UTM Zone: 15 Easting: 440592.48 Northing: 5652197.4 UTM Datum: NAD83
Resident Geologist District: Red Lake
NTS Grid: 52N04SW
Point Location Description: approximate
Location Method: Data Compilation
Access Description: 3 km west north west of Red lake in the Skookum Bay area. Access to the property is via trails extending from the west end of Laverty Road in Red Lake.
The property was purchased from the Dupont Hodgson Syndicate and the company was incorporated in 1936. 1936- 1938: Dupont-Hodgson Gold Mines - Trenching, pitting and drilling. Coin Lake Gold Mines conducted trenching, pitting, and drilled 22 DDH. 1947- 1951: Laverty Red Lake Mines Ltd. conducted trenching and drilling , for a total of 6,036 m. 1971: Cochenour Willans Gold Mines- Completed induced polarization (IP)/resistivity (RES) surveys completed. Results are considered ambiguous. 1981: Wilanour Resources and Camflo Mines - 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 Precious Metals - Drilled 36 holes for a total of 6,176 m and published a mineral resource. 2011: Mega Precious Metals drilled 50 DDH totalling 13,231 m and published an updated mineral resource. 2014: Mega Precious published an updated mineral resource on their entire North Madsen property, including the Laverty Dyke. 2015: Yamana Gold Inc purchased Mega Precious Metals.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| HEYC Heyson #62 / OMEP 81-I-JV-110 / 63.4032 | 52N02SW0085 | 52N02SW0085 |
| 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
Feb 11, 2010 (K R Kettles) - GEOLOGICAL DESCRIPTION: The property is located in the southeastern corner of the Dome Stock. The stock contains auriferous quartz stringers and veins at several localities. Fine grained basic dikes ranging from a few inches to a few feet in width are common. Some of the basic dikes appear to be true lamprophyres and some are diabase. Many of the dikes are undeformed and unaltered, but highly altered and sheared dikes contaiing carbonate and quartz veins are also present. Gold mineralization on the property is found in shear zones in the granitic rocks. The best gold mineralization is usually closely associated with chalcopyrite and pyrite. Auriferous quartz veins may also be present in the shear zones. DEPOSIT DESCRIPTION: Two main zones of enrichment have been delineated by diamond drilling. The Central Zone appears to be greater than 300 m in strike length and the Southern Zone is approximately 120 m in length. Widths of the zones vary from 0.3 m to 11 m. At least two smaller zones have also been delineated. Gold is found in quartz veins and in shear zones which are mineralized with chalcopyrte. Gold mineralization is alsoc present in some of the mafic dikes on the property.
Jan 30, 2015 (Therese Pettigrew) - The Dome Stock dominantly comprises 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 geological mapping has discovered additional narrow (8 m by 3 m wide) fine grained magnetic mafic dykes trending ENE and NNW (i.e., Laverty Dyke). Alteration adjacent to the Laverty Dyke is noted by a darker grey coloured granodiorite with veinlets of quartz calcite +/- minor amounts of tourmaline. The contact of the granodioritic rocks with the carbonized latite is exposed on an outcrop in the southern part of KRL410, and granitic rocks adjacent to the contact are exposed near the southern boundary of claim K1426. The contact on KRL410 is difficult to delineate precisely because both rock types are light-coloured and contain quartz and feldspar, but the latite is grey in colour rather than pinkish and the country rocks are rusty owing to alteration of carbonate minerals. The Laverty Dyke trends 340° with a maximum width of about 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 north-northwest and east-northeast. The east-northeast fractures are parallel to the mafic dykes and both fracture sets have associated mineralized quartz veins. The north-northwest fracture set is a preferred direction for shear fractures and faults with dextral offsets. A third set of fractures with sinistral offsets trending northeast is also associated with mineralized quartz veins. The north-northwest direction is the preferred orientation for shear fractures and faults (dextral offset) along with a third major set trending northeast (sinistral offset) which also has associated mineralized quartz veins (2014 NI 43-101 report).
| Rock Type | Rank | Composition | Texture | Relationship | Diabase | 1 | Diabase | Dikes | Host |
|---|---|---|---|---|
| Granite | 2 | Sheared | Host | |
| Vein | 3 | Carbonate | Veinlets | Host |
| Granite | 4 | Massive | Adjacent |
Feb 11, 2010 (K R Kettles) - Two main zones of enrichment have been delineated by diamond drilling. The Central Zone appears to be greater than 300 m in strike length and the Southern Zone is approximately 120 m in length. Widths of the zones vary from 0.3 m to 11 m. At least two smaller zones have also been delineated. Gold is found in quartz veins and in shear zones which are mineralized with chalcopyrte. Gold mineralization is alsoc present in some of the mafic dikes on the property.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Chalcopyrite | Economic | Ore | ||||
| 2 | Pyrite | Economic | Ore | ||||
| 3 | Gold | Economic | Ore | ||||
| 1 | Quartz | Economic | Gangue | ||||
| 2 | Tourmaline | Economic | Gangue | ||||
| 3 | Carbonate | Economic | Gangue | ||||
| Quartz | Alteration | Silicification | 1 | Strong | Veins | ||
| Carbonate | Alteration | Carbonatization | 2 | Strong | Veins |
Feb 11, 2010 (K R Kettles) - FROM MDI1 DATA: GRADE 1947-50 DDH (6030 M OF DRILLING): RANGE FROM TR.-2.18 OPT (74.75 g/tonne) AU OVER 0.15 TO 1.0 M, EST.RESERVES 1982 DIABASE DIKE KRL5138: 75,000 TONS @ 0.15 (5.14 g/tone) OPT AU,329,000 TONS @ 0.08 OPT (2.74 g/tonne) AU (HIGHLY SPECULATIVE), GRADE 1990 DDH-90-1: BEST INTERSE: 0.339 OPT( 11.62 g/tonne) AU AND 7.20 PPM AG FROM 667-669 FT;0.019/621-625'.
Nov 22, 2011 (A McKee) - In 1944 G Dupont obtained assays of $15 gold over 9 ft. Channel sampling by Mega Precious Metals Inc. in 2009 returned an average grade of 3.61 g/t over 5.81 m.
Jan 30, 2015 (Therese Pettigrew) - Mineralization in the Laverty Dyke is characterized by very fine grained native gold residing in silicate minerals, and occasionally in trace base metal sulphide minerals. The majority of the gold is located near the contact between the dyke and the granodiorite, as well as locally in the granodiorite near the dyke (2014 NI 43-101 report).
Feb 11, 2010 (K R Kettles) - Locally the sheared granites have been silicified and carbonatized. The shear zones have also been locally enriched in sulphides.
| Rank | Classification |
|---|---|
| 1 | Hydrothermal |
| Rank | Characteristic |
|---|---|
| 2 | Disseminated |
| 1 | Sheared |
Date: Aug 05, 2009
Geologist: A Lichtblau
Notes: N/A
| Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
|---|---|---|---|---|---|---|
| Laverty Dyke | 2014 | Inferred Mineral Resource | 676000 | Mega Precious NI 43-101 report March 27, 2014 | 32,929 oz Au; 0.6 g/t Au cutoff | Gold 1.52 Grams per Tonne |
| Laverty Dyke | 2014 | Measured + Indicated Resource | 1300330 | Mega Precious NI 43-101 report March 27, 2014 | 66534 oz Au; 0.6 g/t Au cutoff | Gold 1.59 Grams per Tonne |
| Laverty Granodiorite | 2014 | Inferred Mineral Resource | 1669000 | Mega Precious NI 43-101 report March 27, 2014 | 45,172 oz Au; 0.6 g/t Au cutoff | Gold 0.84 Grams per Tonne |
| Laverty Granodiorite | 2014 | Measured + Indicated Resource | 900270 | Mega Precious NI 43-101 report March 27, 2014 | 27,452 oz Au; 0.6 g/t Au cutoff | Gold 0.95 Grams per Tonne |
| Laverty Dyke-Dyke | 2011 | Indicated Mineral Resource | 546100 | Mega Precious Metals Inc. 43-101, Oct 21, 2011 | Gold 1.24 Grams per Tonne | |
| Laverty Dyke- Dyke | 2011 | Inferred Mineral Resource | 944000 | Mega Precious Metals Inc. 43-101, Oct 21, 2011 | ||
| Laverty Dyke- Dyke | 2011 | Measured Mineral Resource | 634190 | Mega Precious Metals Inc. 43-101, Oct 21, 2011 | ||
| Laverty Dyke Gold Zone | 2010 | Inferred Mineral Resource | 32000 | NI 43 -101 RPT 2010 pg 58 | 3.32 g/t Au 3400 contained oz Au | Gold 3.32 Grams per Tonne |
| Laverty Dyke Gold Zone | 2010 | Indicated Mineral Resource | 395000 | NI 43 -101 RPT 2010 pg 58 | 2.56 g/t Au, 32500 contained Au oz | Gold 2.56 Grams per Tonne |
| Diabase dyke zone | 1982 | Unclassified | 329000 | Red Lake Assessment file RL1188: AFRO# 52N02SW0085 | "Speculative reserve" Grade: 4.35 g/t Au (329 000 tons of 0.127 opt Au) or 0.204 opt Au in 75,000t (6.99 g/t Au) | Gold 4.35 Grams per Tonne |
Publication - Technical Report on North Madsen Properties. Dome and Heyson Twp. 69 P.
Publication Number: 2010 43-101 Date: 2010
Author: G.A Harron and E. Puritch
Publisher Name:
Location: Red Lake RGP
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:
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:
Publication - Technical Report and Updated Resource Estimation on the North Madsen Property. Red Lake, Ontario
Publication Number: 2014 43-101 Date: 2014
Author: McCracken, T. and Utiger, M.
Publisher Name: WSP for Mega Precious Metals
Location: SEDAR
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 - 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 - 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 - 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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