{"687722":{"#nid":"687722","#data":{"type":"event","title":"EAS Seminar Series - Dr. Samer Naif","body":[{"value":"\u003Cp\u003EFluids in Earth\u2019s interior play a fundamental role in myriad tectonic and magmatic processes, yet constraining their distribution is challenging. The largest transfers of volatiles and elements between Earth\u2019s surface and deep interior occur at plate margins and above mantle plumes\u2014regions that also host the planet\u2019s most destructive earthquakes and volcanic eruptions. Because many of these systems lie beneath the ocean, direct observations are limited. Electromagnetic (EM) geophysical methods provide one of the few tools capable of imaging fluids and magmas at depth, and recent advances now enable offshore EM imaging at regional scales.\u003C\/p\u003E\u003Cp\u003EIn this seminar, I present results from active seagoing projects led by the Electromagnetic Geophysics Laboratory (EGL) that image subseafloor fluids and magmas and their impacts on two processes: (1) subduction zone earthquakes and (2) plume-tectonic interactions. First,\u0026nbsp;I show results from\u0026nbsp;EGL imaging surveys at the New Zealand and Alaska\u2013Aleutian subduction margins, which reveal the distribution of fluids along the plate interface and its implications for fault locking and earthquake hazards.\u0026nbsp;\u003C\/p\u003E\u003Cp\u003ENext, we tour the eastern equatorial Pacific seafloor to explore the structure of the lithosphere and asthenosphere. By combining thermodynamically coupled Bayesian inversion of EM data with geophysical, geochemical, and drilling observations, I unravel the magmatic history of the Cocos plate over the past 20 million years. I end by highlighting a new marine survey that will image the mantle structure in the region.\u003C\/p\u003E\u003Cp\u003E*Refreshments: 10:30 AM - 11:00 AM (Atrium)\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EFluids in Earth\u2019s interior play a fundamental role in myriad tectonic and magmatic processes, yet constraining their distribution is challenging. The largest transfers of volatiles and elements between Earth\u2019s surface and deep interior occur at plate margins and above mantle plumes\u2014regions that also host the planet\u2019s most destructive earthquakes and volcanic eruptions. Because many of these systems lie beneath the ocean, direct observations are limited. Electromagnetic (EM) geophysical methods provide one of the few tools capable of imaging fluids and magmas at depth, and recent advances now enable offshore EM imaging at regional scales.\u003C\/p\u003E\u003Cp\u003EIn this seminar, I present results from active seagoing projects led by the Electromagnetic Geophysics Laboratory (EGL) that image subseafloor fluids and magmas and their impacts on two processes: (1) subduction zone earthquakes and (2) plume-tectonic interactions. First,\u0026nbsp;I show results from\u0026nbsp;EGL imaging surveys at the New Zealand and Alaska\u2013Aleutian subduction margins, which reveal the distribution of fluids along the plate interface and its implications for fault locking and earthquake hazards.\u0026nbsp;\u003C\/p\u003E\u003Cp\u003ENext, we tour the eastern equatorial Pacific seafloor to explore the structure of the lithosphere and asthenosphere. By combining thermodynamically coupled Bayesian inversion of EM data with geophysical, geochemical, and drilling observations, I unravel the magmatic history of the Cocos plate over the past 20 million years. I end by highlighting a new marine survey that will image the mantle structure in the region.\u003C\/p\u003E\u003Cp\u003E*Refreshments: 10:30 AM - 11:00 AM (Atrium)\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"From Plates to Plumes: Imaging Fluids and Magmas in Earth\u2019s Interior"}],"uid":"36678","created_gmt":"2026-01-27 19:00:42","changed_gmt":"2026-02-20 16:33:26","author":"tbuchanan9","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-02-26T11:00:00-05:00","event_time_end":"2026-02-26T12:00:00-05:00","event_time_end_last":"2026-02-26T12:00:00-05:00","gmt_time_start":"2026-02-26 16:00:00","gmt_time_end":"2026-02-26 17:00:00","gmt_time_end_last":"2026-02-26 17:00:00","rrule":null,"timezone":"America\/New_York"},"location":"EST L1205","extras":["free_food"],"hg_media":{"679109":{"id":"679109","type":"image","title":"Naif Headshot","body":null,"created":"1769540561","gmt_created":"2026-01-27 19:02:41","changed":"1769540561","gmt_changed":"2026-01-27 19:02:41","alt":"Naif Headshot","file":{"fid":"263231","name":"Naif---Headshot.jpeg","image_path":"\/sites\/default\/files\/2026\/01\/27\/Naif---Headshot.jpeg","image_full_path":"http:\/\/hg.gatech.edu\/\/sites\/default\/files\/2026\/01\/27\/Naif---Headshot.jpeg","mime":"image\/jpeg","size":98893,"path_740":"http:\/\/hg.gatech.edu\/sites\/default\/files\/styles\/740xx_scale\/public\/2026\/01\/27\/Naif---Headshot.jpeg?itok=EGO71gM4"}}},"media_ids":["679109"],"related_links":[{"url":"https:\/\/egl.eas.gatech.edu\/members\/samer-naif\/","title":""}],"groups":[{"id":"364801","name":"School of Earth and Atmospheric Sciences (EAS)"},{"id":"660370","name":"Space"}],"categories":[],"keywords":[{"id":"175623","name":"EAS Seminar"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[],"invited_audience":[],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}}}