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Friday, January 18, 2019 10:00 am - 10:00 am EST (GMT -05:00)

Department Seminar: Dr. Daniel Colman

Defining the Intersection of Geology, Geochemistry and Microbiology in Hydrothermal Environments

Dr. Daniel Colman
Department of Microbiology and Immunology, Montana State University

Hydrothermal systems provide excellent model systems to deconvolute the dynamic interplay between geology and geochemistry and the ecology and evolution of microorganisms. Extensive geochemical variation exists in hydrothermal systems that sets the stage for an incredible amount of microbial taxonomic and functional biodiversity. Further, microorganisms inhabiting hydrothermal systems can have profound roles in shaping the geochemistry of their environments through geo-biological feedbacks resulting from biological transformations of inorganic and organic chemical constituents.

Friday, March 8, 2019 10:30 am - 10:30 am EST (GMT -05:00)

Department Seminar: Dr. Tonya DelSontro

Stock image of rocks, water and fish

Aquatic Greenhouse Gas Emissions in a Changing World

Dr. Tonya DelSontro 
Department F.-A. Forel for Environmental and Aquatic Science; Faculty of Science 
University of Geneva, Switzerland 

It is now widely known that inland waters (i.e., lakes, reservoirs and rivers) emit significant amounts of greenhouse gases (GHG; i.e., CO2, CH4, N2O) – one aspect of the role inland waters play in climate change and in the global carbon cycle.

Wednesday, March 20, 2019 2:00 pm - 3:00 pm EDT (GMT -04:00)

GAC Howard Street Robinson Medal Lecture: Derek Thorkelson

Stock image of rocks above water with fish

GAC Howard Street Robinson Medal Lecture: The Precambrian Secrets of Yukon 

Derek Thorkelson
Department of Earth Sciences, Simon Fraser University

Most geologists in Canada regard the Canadian Cordillera as a Phanerozoic orogen consisting of fold belts and accreted terranes rich in precious and base metal deposits, and flanked by the modern Cascadia subduction zone. To the surprise of many, the orogen also preserves a rich Precambrian history that spans over a quarter of Earth history.