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Yana Fedortchouk

Associate Professor; Co-Director - Experimental High Pressure Geological Research Laboratory

ES_Fedortchuk_Y_210H-214W
Department of Earth Sciences

Email: yana@dal.ca
Phone: +1 902 494 8432
Fax: +1 902 494 6889
Mailing Address: 
Dalhousie University
1459 Oxford Street
PO BOX 15000
Halifax NS B3H 4R2
CANADA
 
Research Topics:
  • Petrology
  • Mineral deposits

Office:

   Life Sciences Centre
   3rd Floor Biology/ES Wing
   Rm. 3050
  Floor Plans

Experimental High Pressure Geological Research Laboratory

Current Research


My main interests are origin and evolution of kimberlites, magmas that form deep beneath the continents and transport diamonds to the surface of the Earth, and how these magmas react with the diamonds they carry. Natural diamonds have various surface features produced as a result of partial dissolution during ascent in kimberlite magma or during residence in their mantle source. These surface features vary a lot on diamonds recovered from different magmatic sources. I use diamonds to study kimberlites. Most traditional diamond studies look inside diamonds to find clues to their origin and related processes in the subcratonic mantle. At the same time, diamond surface keeps an equally important record of the recent (kimberlite) history and possibly of the diamond destroying processes in the subcontinental mantle. In my research, I combine experimental studies at high pressure and temperatures with studies of natural diamond parcels to examine the process of diamond resorption, how we can use surface features on diamonds to determine crystallization conditions of kimberlites, how we can predict the degree of diamond preservation in different kimberlite pipes. The character of diamond resorption is determined by the composition of fluid present in the magma. Therefore, the main direction of my studies is to develop methods for investigating fluid phase of diamond-bearing magmas in order to describe fluid systems of kimberlites from the mantle source to their eruption at the surface. My research has also an economical application through development of geochemical tools for predicting the preservation and quality of diamonds recovered from kimberlites.

Education

  • Diploma (M.Sc.) Moscow State University, Russia (1993)
  • Ph.D. University of Victoria (2006)

Teaching

Research Opportunities

PhD and MSc research project that could start in fall 2018 (all financing pending)

  • Diamond preservation in kimberlite pipes
  • Metasomatism in subcratonic mantle: diamond-forming and diamond-destructive processes
  • Sources of fluid in kimberlite magma: what drives the magma ascent and controls diamond preservation