Emeriti
ANDY CALVERT
Emeritus Professor
EARTH SCIENCES
AREAS OF INTEREST
Dr. Calvert focuses on improving the quality of the subsurface images that can be derived from seismic reflection data, and increasing the accuracy of their interpretation in a variety of fields by integrating other geological and geophysical information. Current projects, which are appropriate for either M.Sc. or Ph.D. level graduate work, include: direct detection of massive sulphide ore bodies (rich in copper, lead and zinc) in mining camps and the identification of faulting that can control ore body formation improving the productivity and understanding of hydrocarbon reservoirs by mapping lithological heterogeneity and sand connectivity within near-surface sediments that represent analogues of existing reservoirs using borehole logs to establish accurate relationships between rock lithology, porosity, fluid saturation etc. and properties that can be extracted from seismic data the evolution of the Canadian landmass through the interpretation of deep seismic reflection surveys that image the entire crust and the upper part of the mantle extension of high resolution imaging methods to ground penetrating radar data that can complement information from seismic reflection surveys.
EDUCATION
- B.A., Oxford University, UK, 1981
- Ph.D., Cambridge University, UK, 1985
DANIEL MARSHALL
Emeritus Professor
EARTH SCIENCES
AREAS OF INTEREST
Dr. Marshall's research interests involve the application of a variety of methods of pressure, temperature and age determination to problems in metamorphic petrology, aqueous geochemistry, ore deposits and tectonics. The majority of my research has been focused upon applying these various analytical techniques to metamorphic rocks and ore deposits in order to establish the tectonic histories of the enclosing geological terranes and to develop and refine the genetic models for the ore deposits studied. Pressure-Temperature-time (PTt) studies of ore deposits in conjunction with their regional host units can be a very effective approach as ore minerals and alteration systems have been the subject of extensive thermodynamic study and thus offer a rich source of mineral equilibria useful for PTt determinations.
EDUCATION
- B.Sc., Carleton University, Canada, 1985
- M.Sc. (Dist), Carleton University, Canada, 1990
- D.Sc., Université de Lausanne, Switzerland, 1995
DEREK THORKELSON
Emeritus Professor
EARTH SCIENCES
AREAS OF INTEREST
Dr. Thorkelson focuses on the relationships between magmatism and tectonics, using both field studies and theoretical approaches. He is currently working on two main projects. One is the igneous, stratigraphic, and structural history of Precambrian rock in northern Yukon. Present information suggests that Yukon and Australia belonged to a single continent in Precambrian time. Dr. Thorkelson's investigations are testing that hypothesis by establishing the nature and timing of magmatism, sedimentation, deformation and mineralization in the Yukon, and comparing these findings with the geological record in Australia. The second project examines the interaction between lithosphere and asthenosphere in areas of ridge-trench intersection. This topic is relevant to the entire Cordillera, from Alaska to the Antarctic Peninsula. Dr. Thorkelson's current work addresses the relationship between magmatism and tectonism in British Columbia over the past 50 million years. During this time, two ridge-trench intersections occurred along the west coast of Canada leading to slab window development beneath parts of the BC coast and interior. Igneous and tectonic features are being used to constrain the locations of the slab windows and, in turn, the configurations of plates in the Pacific basin which have long been subducted.
EDUCATION
- B.Sc. Hons, University of British Columbia, Canada
- M.Sc., University of British Columbia, Canada, 1986
- Ph.D., Carleton University, Canada, 1992