Postdoctoral Positions available in Fluid-Rock Interactions and Investigation of Deep Subsurface Life - Stable Isotope Laboratory, University of Toronto One or more postdoctoral positions are available for research projects on the origin, residence times and geochemical signatures of deep crustal fluids and the subsurface microbial communities that are sustained by water-rock reactions in the deep Earth. Field, laboratory and modelling opportunities are available to extend the existing program to explore the implications of our work on Earth analogs to the search for life on the rocky bodies and ocean worlds of our solar system. Applicants with a PhD in geochemistry, geobiology, chemistry or related disciplines are encouraged to apply.
Summary of Current Research Program: Research on fracture fluids 1-3 km deep in Precambrian Shield rocks across Canada, Fennoscandian, South Africa and Brazil has revealed that such subsurface fluids rich in dissolved substrates such as hydrogen and methane sustain subsurface microbiology communities akin to those discovered at the hydrothermal vents (Sherwood Lollar et al., 2002 Nature; Sherwood Lollar et al., 2006 Chemical Geology, Sherwood Lollar et al., 2014 Nature; Li et al., 2016 Nature Communications). New collaborations in clumped methane isotope analysis are providing innovative models for delineating biotic and abiotic sources of methane (Etiope & Sherwood Lollar, 2013, Wang et al., 2015, Young et al., 2017; Giunta et al., 2018). By incorporating novel stable isotope techniques with conservative noble gas tracers, the extreme antiquity of these hydrogeologically ancient fracture waters has been demonstrated - with residence times ranging from tens of millions of years in the Witwatersrand basin (Lippmann-Pipke et al., 2011 Chemical Geology) to billions of years in the Timmins mine in Northern Ontario Canada (Holland et al., 2013 Nature, Warr et al., 2018 GCA). A diverse team of researchers at the Stable Isotope Lab, University of Toronto along with international collaborators are extending these findings through interdisciplinary studies across the breadth of geoscience, geobiology and planetary science and astrobiology.
If the excitement of subsurface exploration for deep fluids and subsurface life appeals to you, do apply to join our team!
Applicants please send a detailed CV, statement of research interests and potential fit to the team, along with 3 letters of recommendation directly to:
Dr. B. Sherwood Lollar Dept. of Earth Sciences, University of Toronto 22 Russell Street Toronto, Ontario M5S 3B1 Canada Tel: 416-978-0770 Email: firstname.lastname@example.org
Due Date: Position is open immediately and will remain open until the position(s) are filled.
About University of Toronto, Department of Earth Sciences
Founded in 1827, the University of Toronto has evolved into Canada’s leading institution of learning, discovery and knowledge creation. We are proud to be one of the world’s top research-intensive universities, driven to invent and innovate. U of T has a 160-year history of educating leaders in the Canadian resource and exploration industries. The Department of Earth Sciences' internationally-regarded scientists are pioneers in modern mineral exploration techniques and strategies. Today, it encompasses an impressive range of research and teaching strengths in earth and planetary materials, geophysics and geodynamics, sedimentary geology and environmental earth sciences. Our goal is to strengthen the core expertise and expand the curriculum in order to meet the demand for highly-qualified geosciences professionals.