Geoscience

Geological Survey Activity Tracker

Northern Superior Province

 

Geology and Mineral Potential of the Bigstone Lake Area

 

Click image to enlargeProject Information

Principal investigators:
Marc Rinne

Partnered with:
--

Location:
NTS 53E12,13

 

Project Description

Main objectives:

The primary goal of this project is to document the supracrustal rocks of the Bigstone - Wass - Knight Lakes area, which may have been contiguous with the Island Lake greenstone belt. In much of the area, the most recent detailed mapping took place in 1941. Parts of the region were last mapped by the Manitoba Geological Survey in 1986, and contain mafic, felsic, ultramafic, intermediate, and locally gold- and zinc-mineralized volcanic packages.

Methodology:

Shoreline mapping and inland traverses will be carried out at a scale of 1:20k, supplemented by geochemical, Sm-Nd isotopic, and U-Pb geochronological analyses of key samples. The work will include structural and hydrothermal alteration studies in conjunction with thin section petrography. 

 

Benefits:

A more detailed understanding of the distribution, geochemistry, geochronology, regional relationships, and revised mineral potential of the rocks in the Bigstone Lake area would be of value to the mineral exploration industry. The results of this project may help to inform land use decisions of the Island Lake Tribal Council and associated communities.

 

Plans for fiscal year 2017-2018:

  • Continue 1:20k scale mapping over 4.5 weeks at Bigstone Lake, continuing eastward into Knight and Wass Lakes
  • Deliver technical presentation at the 2017 Manitoba Mining and Minerals Convention

 

Completed outputs:

2016-2017

Rinne, M.L. 2016: Preliminary bedrock mapping results, Bigstone Lake, northwestern Superior province, Manitoba; Manitoba Growth, Enterprise and Trade, Manitoba Geological Survey, Manitoba Mining and Minerals Convention 2016, Winnipeg, Manitoba, November 16–18, 2016, oral presentation.

Rinne, M.L., Anderson, S.D. and Reid, K.D. 2016: Bedrock geology of Bigstone Lake, Manitoba (parts of NTS 53E12,13); Manitoba Growth, Enterprise and Trade, Manitoba Geological Survey, Preliminary Map PMAP2016-4, scale 1:20 000.

Rinne, M.L., Anderson, S.D. and Reid, K.D. 2016: Preliminary results of bedrock mapping at Bigstone Lake, northwestern Superior province, Manitoba (parts of NTS 53E12, 13); in Report of Activities 2016, Manitoba Growth, Enterprise and Trade, Manitoba Geological Survey, p. 51–62.

back to top