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SPEAKER: Geosciences Colloquium, Bradley Hacker

Date/Time: 
Tuesday, October 9, 2018 - 3:45pm
Venue: 
22 Deike

Our October 9th Colloquium Speaker, Bradley Hacker, Professor, Earth Science, University of California at Santa Barbara, presents “Crustal Flow and Melting in the Tibetan Plateau” at 4 PM in 022 Deike. A Speaker’s Coffee & Cookies Reception will precede the talk at 3:45 PM in the EMS Museum on the ground floor of Deike. All are welcome. More About Bradley Hacker Professor, Earth ScienceEarth Research InstituteUniversity of California at Santa Barbara EducationPh.D., Geology, University of California, Los AngelesM.S., Geology, University of California, DavisB.S., Geology, University of California, Davis Research and ActivitiesPrior to joining UCSB, Hacker spent eight years as a postdoctoral scholar and research associate at Stanford University, and as a geologist for the US Geological Survey. He is a Fellow of the American Geophysical Union, the Geological Society of America, the Mineralogical Society of America, and the Cave Research Foundation. His research combines field and theoretical studies to understand the physical and chemical processes in Earth's mid-lower crust and uppermost mantle. Topics of interest include: (1) formation and exhumation of ultrahigh-pressure (UHP) rocks; (2) ophiolite emplacement and the formation of inverted metamorphic gradients; (3) role of phase changes in earthquakes, diagenesis, and magmatism in subduction zones; (4) formation and refining of continental crust; (5) rheology, velocity anisotropy and phase changes in the lower crust; (6) rock physical properties; and (7) laser-ablation inductively coupled plasma mass spectrometry. His field studies have taken him to Norway, China, Papua New Guinea, Kazakhstan, and Oman as well as various locations in North America. His study of the world's highest geological feature, the Tibetan Plateau (that dates back 13.5 million years) has determined that the plateau rose to its current height (about 5 kilometers) much earlier than previously thought and it cannot go higher than it is now. 

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