2 PhD and 1 MSc project opportunities in Igneous Petrology and Economic Geology

The Department of Applied Sciences (teaching unit Earth Sciences) at UQAC (Université du Québec à Chicoutimi), Québec, Canada, is host to 2 research Chairs, held by 2 dynamic young professors with recognised expertise in igneous petrology, as well as in magmatic and metallogenic processes. UQAC is also host to a fully equipped laboratory (http://www.uqac.ca/labmater/index.html), world-renowned for assisting the study of ore deposits, which includes two Laser Ablation-ICP-MS systems and petrographic equipment (microXRF, cathodoluminescence, petrographic microscope with semi-automatic phase detection, etc.). Field access to important geological terranes, such as the Grenville (Proterozoic orogeny) and Abitibi (gold-endowed Archean greenstone belt) subprovinces, is close by. UQAC is a francophone university and the mandatory graduate classes are given in French. However, the research and thesis can be carried out in English. The candidate has the opportunity to carry out original research and present at national and international conferences. Students are paid a research scholarship at NSERC rates ($18,000CAD for M.Sc. and $21,000CAD for Ph.D).

The Canada Research Chair in Geochemistry Applied to Ore Deposits (S. Dare) and the UQAC Institutional Chair on Archean Metallogenic Processes (L. Mathieu) are offering 2 PhD and 1 MSc projects that are fully funded and will start in September 2019 or January 2020. Deadline to apply: 15th July 2019. Please make it clear which project/s you are applying for.

  • PhD offer - Petrogenesis of magmatic oxide-apatite deposits hosted in Proterozoic Anorthosite-massifs of the Central Grenville Province, Quebec " (Supervisor: Sarah Dare)
  • PhD offer - Petrogenesis of sanukitoid magmatism and relationship to Neoarchean porphyry deposits (gold and base metals) " (Supervisors: Lucie Mathieu and Michel Jébrak)
  • MSc offer - Origin of the vanadiferous magnetite of the Lac Doré Complex, Chibougamau area, Québec, Canada " (Supervisor: Lucie Mathieu)

Brief descriptions of each project are given below. For full descriptions, see corresponding websites (www.uqac.ca/portfolio/sarahdare and www.uqac.ca/portfolio/luciemathieu).

PhD Project with the Canada Research Chair in Geochemistry Applied to Ore Deposits

This new Canada Research Chair (CRC) is held by Dr. Sarah Dare at UQAC and aims to develop innovative geochemical tools, using mineral indicators such as Fe-oxides and apatite, to improve 1) our understanding of the petrogenesis of a variety of ore deposits and their igneous host rocks and 2) the exploration of ore deposits using the surficial environment (e.g., Dare et al. 2014: https://link.springer.com/article/10.1007/s00126-014-0529-0). An international team of student researchers currently focus on the formation of magmatic oxide deposits (Fe-Ti-V-P) associated with layered intrusions and anorthosite complexes. Other ore deposits of interest for the research program include magmatic Ni-Cu-PGE sulfides, Nb-Ta (REE) mineralisation associated with alkaline rocks and volcanogenic massive sulfides.

PhD on magmatic oxide-apatite deposits in Proterozoic Anorthosite-massifs

The PhD project (funded by FQRNT and CRC) will focus on the Proterozoic anorthosite massifs and their Fe-Ti-V-P (oxide-apatite) deposits located in the Central Grenville Province, in the area of Saguenay-Lac St. Jean, Quebec. The project will combine classical methods (fieldwork, petrography, microprobe, lithogeochemistry, radiogenic isotopes) with innovative techniques (trace elements of the ore minerals, analysed in-situ by laser ablation ICP-MS) to identify and evaluate the role of i) magma source, ii) fractional crystallisation, iii) redox conditions, iv) crustal contamination and iv) Fe-oxide liquid immiscibility in the formation of these enigmatic oxide-apatite deposits and their host anorthosites. In turn, this will give us a better understanding of 1) the tectonic evolution of the anorthosite massifs during the Grenville orogeny and 2) the conditions favourable for forming oxide-apatite deposits in anorthosite massifs.

An advanced degree (M.Sc. or equivalent) in geology is necessary; a background in geochemistry, igneous petrology and economic geology is preferred. To apply, please submit your CV, transcript of course marks and a motivation letter (containing contact details for 3 academic referees) before the 15th July 2019 to

Professor Sarah Dare
CERM, Département des Sciences Appliquées, UQAC
Sarah1_Dare@uqac.ca
www.uqac.ca/portfolio/sarahdare/

Projects with the UQAC institutional chair on Archean metallogenic processes

This chair is held by Dr. L. Mathieu at UQAC and is part of the Metal Earth project, which is led by the Mineral Exploration Research Center (MERC), Harquail school of Earth Sciences, Laurentian University, ON. Metal Earth is currently the most ambitious project on gold and base metals of northern America. The UQAC institutional chair on Archean metallogenic processes aims at unraveling the importance of magmatic processes in the concentration of precious and base metals. It has a special interest for the Abitibi Subprovince; i.e. Chibougamau and other areas.

The UQAC and UQAM research teams, under the leadership of Lucie Mathieu and Michel Jébrak, and in collaboration with several professors of the UQAC, UQAM and Laurentian universities, aim at unraveling the relationships between magmatic and mineralizing processes.

The team is currently looking for candidates for the following projects:

  1. PhD project on sanukitoid magmatism (supervisors: L. Mathieu and M. Jébrak): this CRSNG-funded project focuses on one of the most intriguing magma of the Neoarchean period, that may be related to a major geodynamic change. The aim of the project is to define the petrogenesis of several sanukitoid intrusions (source, condition of production, evolution) and to establish their gold and volatiles contents. Examples of petrogenetic studies that are significant to metallogenic models can be found here (Fayol and Jébrak 2017; Mathieu and Racicot 2019): https://pubs.geoscienceworld.org/segweb/economicgeology/article/doi/10.5382/econgeo.2017.4534/521168 https://www.mdpi.com/2075-163X/9/3/174
  2. MSc project on the vanadium deposits of the Lac Doré Complex, Chibougamau area, Abitibi Subprovince (supervisor: L. Mathieu): this FRQNT-funded project focuses on a large layered intrusion of the Chibougamau area, which contains a magnetite-enriched unit (called the Layered Zone) currently explored for vanadium. The aim of this project is to unravel the magmatic evolution of the Layered Zone using magnetite chemistry and to provide a scientific foundation for exploration models. Further details can be found in a preliminary investigation published here (Mathieu 2019): https://www.mdpi.com/2076-3263/9/3/110

An advanced degree (M.Sc. for offer #1, B.Sc. for offer #2, or equivalent) in geology is necessary; a background in geochemistry, igneous petrology and economic geology is preferred. If you are interested, please send your CV, a copy of your marks, the name and contact information of one to two referees (i.e. your BSc and/or MSc supervisors), and a motivation letter before the 15th of July 2019 to:

Professor Lucie Mathieu
CERM, Département des Sciences Appliquées, UQAC
lucie1.mathieu@uqac.ca
www.uqac.ca/portfolio/luciemathieu/

posted: 30 May 2019     Please mention EARTHWORKS when responding to this advertisement.