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Dr. Saleeby is cited for his research that has transformed our understanding of convergent margin systems through the creative and rigorous integration of information from geochemistry, geochronology, petrology, geophysics, and field observations. Jason Saleeby is the original tectonic petrologist, a scientist that uses petrography, petrology, geochemistry and isotopes (among other tools) to resolve large-scale tectonic problems. He has an extraordinary rich background ranging from classic geology to physics and chemistry, and almost 40 years of great discoveries in the realm of continental tectonics, and especially in Cordilleran geology. Few Earth Scientists are able to glean as much information from rocks and structures in the field, and then apply a broad range of quantitative techniques to provide constraints on their ages and origins. These skills have provided Dr. Saleeby with an impressive ability to reconstruct the full geologic history of study areas, rather than just focus on a particular event or process. Dr. Saleeby’s also has integrated information from surficial processes on land, geochemical/petrologic processes that operate within the deep crust and upper mantle, and the wide range of igneous, metamorphic, and hydrothermal processes that operate on the ocean floor.
He moves easily between diverse scales and types of integrating observations. From the detailed characterization of the P-T history in xenoliths, to the structural complexities of deep crust, to the geophysical imaging of crustal sections, to the metamorphic petrology of migmatites, to the geodynamics of the Sierra “drip,” to landscape evolution. His success resides in bringing the same geological rigor and insight to all the diverse fields and scales of observations. Dr. Saleeby’s abilities to combine information from these realms were instrumental in the conceptual breakthroughs in understanding accretionary tectonics in the 80’s, crustal recycling and delamination beneath batholiths in the 90’s, and Laramide-style subduction in the 2000’s.