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The Rocks of Catalina Messengers from the Abyss
Santa Catalina Island offers the chance to see a series of rocks that are at the same time both unique and general — as the best exposures above sea level of the Southern California Inner Borderland terrain and also as preserved examples of the rocks that form wherever and whenever oceanic and continental plates converge. We will review the significance of the major rock types that can be seen around Catalina, their mineralogy, their ages, and the structural relations between them. Then we will put them together into a story of the development and evolution of the West coast of North America over the last 125 million years.

Sep 30, 2022 05:30 PM in Pacific Time (US and Canada)

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Speakers

Paul Asimow Ph.D
Professor of geology and geochemistry @California Institute of Technology
Paul D. Asimow is the Eleanor and John R. McMillan professor of geology and geochemistry at the California Institute of Technology (Caltech). A native of Southern California, he has a bachelor’s degree in Geological Science from Harvard University, and both master’s and Ph.D. degrees in Geology from Caltech. After a postdoctoral research appointment at the Lamont-Doherty Earth Observatory of Columbia University, he returned to Caltech to join the faculty and has been teaching there for 23 years. His research focuses on the melting and crystallization of igneous rocks, ranging across space, time, and methodology to include computational approaches to understanding mid-ocean ridges, experimental simulation of the entirely molten Earth that followed the moon-forming impact, field-based studies of the Arabian-Nubian Shield, and more. When not working, he plays the tuba and spends as much time as possible camping, hiking, and biking (often on Catalina).