Geoscience

Geological Survey Activity Tracker

Northern Manitoba

 

Rare metals and REE (Brezden Lake)

Project Status: Completed (2016)

Project Information

Principal investigators:
Tania Martins, Chris Couëslan, Christian Böhm

Location:
Brezden Lake, part of 64C/4

 

Project Description

Main objectives:

The main objective of this project is to investigate the potential of the Brezden Lake syenite to host rare earth element mineralization. This syenite is a heterogeneous intrusion with relatively high content of REE+Y (whole rock geochemistry).

Methodology:

  • Thin sections from previous sampling were examined and minerals such as allanite and calcite were identified.
  • Whole rock geochemistry reveals total REE+Y varying from 1686 to 3055 ppm which is comparable to some of the fenites found at Eden Lake.
  • Values of 418 and 617 ppm of W were reported for the main syenite body. These values are compared to what is found in syenites associated with gold mineralization.
  • Conduct detailed outcrop mapping of the syenite complex and radiometric ground survey with hand-held spectrometer.
  • Extensive sampling for thin section, mineralogical, geochemical, and isotopic studies.

 

Benefits:

Better knowledge of the mineralogy and whole rock geochemistry of the Brezden Lake syenite. Identification of new REE occurrences will reveal more of the rare element potential of this locality and possibly open doors for exploration.

 

Completed outputs:

2015-2016

Martins, T. 2016: Brezden Lake intrusive complex; Rare Metals in Manitoba, URL <https://www.gov.mb.ca/iem/geo/raremetals/pdfs/brezden.pdf> [November 2016].

2012-2013

Martins, T., Couëslan, C.G., Böhm, C.O. 2012. Rare metals scoping study of the Brezden Lake intrusive complex, western Manitoba (part of NTS 64C4), in Report of Activities 2012, Manitoba Innovation, Energy and Mines, Manitoba Geological Survey, p. 115–123

T. Martins, C.G. Couëslan and C.O. Böhm 2012: Rare metals scoping study of the Brezden Lake intrusive complex, western Manitoba (part of NTS 64C4); Manitoba Innovation, Energy and Mines, Manitoba Geological Survey, Data Repository Item DRI2012006, Microsoft® Excel® file.

Martins, T. 2012: Rare Metals in Manitoba; Manitoba Innovation, Energy and Mines, Manitoba Geological Survey, Manitoba Mining and Minerals Convention 2012, Winnipeg, Manitoba, November 15–17, 2012, oral presentation.

Martins, T., Couëslan, C.G., Böhm, C.O. and Kremer, P. 2012: Rare Metals in Manitoba; Manitoba Innovation, Energy and Mines, Manitoba Geological Survey, Manitoba Mining and Minerals Convention 2012, Winnipeg, Manitoba, November 15–17, 2012, poster presentation.

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