Mineral Deposit Inventory for Ontario

Ministry of Energy, Northern Development and Mines

Permanent Link to this Record: MDI000000002032

Deposit: MDI000000002032

General

Mineral Deposit Identification
Deposit Name(s) Treasure Box - 2002
Deposit Status prospect
Date Created 2016-Oct-28
Date Last Modified 2020-Nov-30
Created By A Tims
Revised By T Pettigrew

Commodities

Primary Commodities: gold

Location

Township or Area: Baird

Latitude: 50° 59' 18.56"    Longitude: -93° 55' 21.21"

UTM Zone: 15    Easting: 435249   Northing: 5648950    UTM Datum: NAD83

Resident Geologist District: Red Lake

NTS Grid: 52K13NW

Point Location Description: Map in 2016 NI 43-101 p. 66

Location Method: data compilation

Access Description: Access can be made either via boat to St. Paul Bay and travelling approximately three kilometres south on the old road east of Dome Creek, or by travelling by all terrain vehicle or snow machine west on the Buffalo Pit road, then south on the road from St. Paul Bay

Exploration and Mining History

1957-60: Madsen Red Lake Gold Mines Ltd. drilled 4 DDH totalling 249.8 m. 2001: Placer Dome (CLA) Ltd. conducted a helicopter airborne magnetic survey. 2002: Reconnaissance mapping and prospecting over the property northwest of the Madsen Mine around Russet Lake plus mobile metal ion and conventional soil sampling, re-sampling, and logging of historic boreholes. Follow-up work consisting of eight boreholes (5,028 metres) was completed. 2003: Placer Dome returned to the Treasure Box area included 12,100 metres of core in 21 boreholes, and was followed by a later phase of infill drilling at 25- to 30 metres spacing that included six boreholes for a total of 1,913 metres. 2004: Placer Dome drilled an additional 14 boreholes (5,315 metres). 2007: A detailed drill program was initiated at the Treasure Box by Claude Resources completing 51 boreholes testing the system to depths in excess of 350 metres.

Assessment Work on File

Assessment Work on File
Office File Number   Online Assessment File Identifier   Online Assessment File Directory  
11     52K13NW0042     Open

Geology

Province: Superior

Subprovince: Uchi

Belt: Red Lake

Geological Age: Archean   

Tectonic Assemblage: Balmer Assemblage

Geology Comments

10/28/2016 (A Tims) - Bonanza-grade extensional quartz-tourmaline veins and stockwork veins with common visible gold. Vein swarms (10 – 70 metres wide); gold mineralization in the host rock is minimal. Extensive drilling (Placer Dome, Claude) delineated mineralized veins over 165 metres. High-grades appear to have limited extents

Mineral Deposit Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
mafic metavolcanics 1 adjacent
ultramafic intrusive 2 near
vein 3 quartz-tourmaline host

Mineralization

Deposit Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Habit Description
1 gold economic ore
1 quartz economic gangue
2 carbonate economic gangue
3 tourmaline economic gangue

Mineralization Comments

10/28/2016 (A Tims) - Drilling returned numerous significant intercepts of visible gold with grades ranging from 1 to 116 g/t gold, in discrete quartz-tourmaline veins typically larger than 30 centimetres wide. Mineralized veins are situated in swarms typically from 10 to 70 metres in width; however, intervening wallrock shows only anomalous gold values between approximately 100 to 1,000 parts per billion.

11/30/2020 (T Pettigrew) - In 2002, drilling consisted of eight boreholes (5,028 metres) at a 244 metres (800 feet) spacing. Of these eight boreholes, three intersected visible gold, and all eight intersected gold grades ranging from 1 to 48 g/t gold with a best intercept of 3.17 g/t gold over 7.05 metres. Gold mineralization was interpreted to be associated with east-west trending splay faults of a major northeast-trending structure. Moderate to strong quartz-carbonate-tourmaline veining, mineralization, and alteration were logged over large intervals in the boreholes drilled within the area. Further drilling in 2003 in the Treasure Box area included 12,100 metres of core in 21 boreholes, and was followed by a later phase of infill drilling at 25- to 30 metres spacing that included six boreholes for a total of 1,913 metres. The drilling returned numerous significant intercepts of visible gold with grades ranging from 1 to 116 g/t gold, in discrete quartz-tourmaline veins typically larger than 30 centimetres wide. Mineralized veins are situated in swarms typically from 10 to 70 metres in width; however, intervening wallrock shows only anomalous gold values between approximately 100 to 1,000 parts per billion. The vein system remained open in all directions and was interpreted to be controlled by a northeast-trending deep structure and a folded mafic-ultramafic contact. Results from core orientation show that quartz-tourmaline veins have a variety of orientations; gold-bearing veins, however, seem to strike northwest-southeast. Due to the drill results, a program of surface stripping (0.5 hectare), detailed trenching (1,603 samples), and mapping was completed. Drilling continued on the Treasure Box area in 2004 with 14 boreholes (5,315 metres), with results between 1 and 189 g/t gold, typically over 0.3 metres intervals. Some of the composites included 9.6 metres at 4.58 g/t gold, 4.9 metres at 10.6 g/t gold, and 4.2 metres at 17.9 g/t gold. Trenching returned similar values. In early 2007, a detailed drill program was initiated at the Treasure Box area. Claude completed 51 boreholes testing the system to depths in excess of 350 metres. Results returned anomalous gold values throughout with several narrow high-grade zones associated with the quartz-tourmaline veining. The mineralized vein system was intercepted over a strike length of 165 metres, although high-grade intercepts appear to have relatively limited continuity. DDH PDM04-908 returned 38.47 g/t Au over 1.22 m. DDH PDM03-902 returned 19.99 g/t Au over 1.22 m. DDH PDM03-30 returned 22.7 g/t Au over 1.56 m. DDH PDM0329 returned 14.05 g/t Au over 5.46 m. Vein swarms 10-70 m wide preferentially formed during boudinage of pre-existing barren iron-carbonate veins. Gold mineralization the wall rock is minimal. Mineralized veins have been delineated over a strike length of 165 m (Cole et al., 2016).

References

Thesis - The Geology of Madsen Red Lake Gold Mine

Publication Number: M.Sc.    Date: 1955

Author: Butler, R. L.

Publisher Name: University of Manitoba

Reference Location: RGP Thunder Bay


Book - NI 43-101 Technical Report on the Economic Assessment Red Lake Area, Ontario, Canada

Publication Number: 2016 NI 43-101    Date: 2016

Author: Cole, G., Niemela, K., Folinsbee, J.

Publisher Name: Pure Gold Mining Inc.

Reference Location: Sedar


Publication - Geology, Red Lake Greenstone Belt, Western Superior Province. Ontario

Publication Number: OF4594    Scale: 1:50 000    Date: 2004

Author: Sanborn-Barrie, M., Skulski, T., and Parker, J.

Publisher Name: Geological Survey of Canada

Reference Location: https://doi.org/10.4095/215568


Map - Precambrian Geology, Baird Township, East Part

Publication Number: P3196     Scale: 1:12 000    Date: 1993

Author: Wallace, H., Atkinson B. T.

Publisher Name: OGS


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For detailed information regarding this mineral deposit please contact the Red Lake Resident Geologist District Office