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Department Seminar: Dr. James O. Knighton
Building an Understanding of Ecohydrologic Process through Model-Data Fusion
Dr. James O. Knighton
Biological & Environmental Engineering, Cornell University
Recent advances in ecohydrology have been facilitated by the parallel emergence of ecohydrological models, high resolution hydrologic datasets, and data analytic techniques. In this talk I will first examine the hypothesis of ecohydrological separation (i.e. the Two Water Worlds Hypothesis) from the perspective of physically-based models and high frequency soil water isotopic measurements along a hillslope.
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.
Department Seminar: Dr. Jacqueline Goordial
Vital signs in the low energy microbial world: linking physiology to ecosystem function
Dr. Jacqueline Goordial
Bigelow Laboratory for Ocean Sciences, East Boothbay, Maine
Microorganisms are the most diverse and abundant lifeforms on Earth, but less than 1% have been cultured in the laboratory for study. Thus, our knowledge of the metabolic potential of the vast majority of microorganisms is based primarily on genomic and metagenomic sequencing. Compounding these unknowns is evidence that bacteria commonly exist in prolonged states of low metabolic activity or non-growth states in environmental settings. This gap in our knowledge necessitates uniting physiology and molecular microbiology to understand the roles that bacterial communities play in biogeochemical cycling and ecosystem function.
Department Seminar: Dr. Tonya DelSontro
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.
CSEG Distinguished Lecture Tour: Dr. David Gray
CSEG DISTINGUISHED LECTURE TOUR: An Unconventional View of Geoscience
Dr. David Gray
Sr. Geophysical Advisor, Global Exploration, Nexen
Shale oil and gas production and “fracking” are with us to stay. We geoscientists need to understand how we can contribute to the “shale revolution.”
GAC Howard Street Robinson Medal Lecture: Derek Thorkelson
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.
Department Seminar: Dr. Ben van der Pluijm
Clays, Faults and Orogeny
Dr. Ben van der Pluijm
Department of Earth and Environmental Sciences, University of Michigan
Newly-formed, illitic clays are common in foreland fold-thrust belts, and the ages of fault-zone mineralization allow first-order constraints on the timing of regional deformation, fault weakening and fluid pathways. We briefly discuss our method of authigenic clay characterization and analysis, and focus on Ar-encapsulation dating.
Science Teaching Fellows Colloquium: Science Education in the 21st Century
The traditional university science curriculum was designed to train specialists in specific disciplines. However, in universities all over the world, science students are going into increasingly diverse careers and the current model does not fit their needs. Advances in technology also make certain modes of learning obsolete.
Ecohydrology Research Symposium
Join the Ecohydrology Research Group on Friday, December 6th for an Ecohydrology Research Symposium in celebration of the years of impactful research conducted by Dr. Philippe Van Cappellen, his students and colleagues, past and present.