{ "138091-21891103": { "datetime_modified":"20260105T110419", "datetime_start":"20260116T150000", "datetime_end":"20260116T160000", "has_end_time":1, "date_start":"2026-01-16", "date_end":"2026-01-16", "time_start":"15:00:00", "time_end":"16:00:00", "time_zone":"America\/Detroit", "event_title":"Sustainability Coffee Chats: Free coffee and good conversation!", "occurrence_title":"", "combined_title":"Sustainability Coffee Chats: Free coffee and good conversation!", "event_subtitle":"", "event_type":"Social \/ Informal Gathering", "event_type_id":"19", "description":"The Student Sustainability Coalition will be hosting our coffee chats throughout the semester and we want you to join us! Passionate about sustainability?--water conservation, AI, carbon neutrality, transportation, ANYTHING!--come chat with us, share your passion(s) and interests, all while helping contribute to a more sustainable University of Michigan! Not to mention: WE WILL BUY YOUR DRINK!\r\n\r\nFind us at: \r\nMaizes Cafe every Friday from 3-4p and Rooting for Change Cafe (3rd Floor Palmer Commons) every other Wednesday from 5-6p", "occurrence_notes":"Look for the Sustainability Coffee Chat sign in the seating area.", "guid":"138091-21891103@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/138091", "building_id":"1000191", "building_name":"Michigan League", "campus_maps_id":"108", "room":"Maizie's Cafe", "location_name":"Michigan League", "has_livestream":0, "cost":"", "tags":["Food","Graduate and Professional Students","Free Food","Free","food and the environment","Discussion","Climate Change","Activism","Student Org","Undergraduate Students","Talk","Sustainability","Social Impact","Social","In Person"], "website":"https:\/\/planetblue.umich.edu\/campus\/get-involved\/for-students\/student-orgs\/ssc", "sponsors":[ { "group_name":"Student Sustainability Coalition", "group_id":"4616", "website":"" }, { "group_name":"Student Life Sustainability", "group_id":"4678", "website":"" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2025\/09\/event_138091_original-3.png", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_thumb\/media\/attachments\/2025\/09\/crop-event_138091_original-3.png", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2025\/09\/crop-event_138091_original-3.png", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/event_large_2x\/media\/attachments\/2025\/09\/crop-event_138091_original-3.png", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2025\/09\/crop-event_138091_original-3.png", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/group_thumb\/media\/attachments\/2025\/09\/crop-event_138091_original-3.png", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/group_thumb_square\/media\/attachments\/2025\/09\/crop-event_138091_original-3.png", "group_large":"https:\/\/events.umich.edu\/media\/cache\/group_large\/media\/attachments\/2025\/09\/crop-event_138091_original-3.png", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/group_large_lightbox\/media\/attachments\/2025\/09\/crop-event_138091_original-3.png", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/event_large_crop\/media\/attachments\/2025\/09\/crop-event_138091_original-3.png", "event_list":"https:\/\/events.umich.edu\/media\/cache\/event_list\/media\/attachments\/2025\/09\/crop-event_138091_original-3.png", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2025\/09\/crop-event_138091_original-3.png", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/event_grid\/media\/attachments\/2025\/09\/crop-event_138091_original-3.png", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/event_grid_2x\/media\/attachments\/2025\/09\/crop-event_138091_original-3.png", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/event_feature_large\/media\/attachments\/2025\/09\/crop-event_138091_original-3.png", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_feature_thumb\/media\/attachments\/2025\/09\/crop-event_138091_original-3.png" }, "occurrence_count":37, "first_occurrence":21881923 } , "143176-21892392": { "datetime_modified":"20260105T103552", "datetime_start":"20260116T153000", "datetime_end":"20260116T163000", "has_end_time":1, "date_start":"2026-01-16", "date_end":"2026-01-16", "time_start":"15:30:00", "time_end":"16:30:00", "time_zone":"America\/Detroit", "event_title":"Smith Lecture: William Guenthner", "occurrence_title":"", "combined_title":"Smith Lecture: William Guenthner: Crystals to Cratons: Kinetics and Applications of Zircon (U-Th)\/He Deep Time Thermochronology", "event_subtitle":"Crystals to Cratons: Kinetics and Applications of Zircon (U-Th)\/He Deep Time Thermochronology", "event_type":"Lecture \/ Discussion", "event_type_id":"13", "description":"Zircon (U-Th)\/He (ZHe) thermochronology has been extensively used to study the timing and rates of cooling associated with rock exhumation in active orogenic belts, sedimentary basin evolution, and hydrothermal fluid migration. More recently, the ZHe thermochronometer has been used, at times in concert with other low- to medium-temperature systems, in Precambrian rocks to resolve \u201cdeep-time\u201d thermal histories that span billions of years and provide insights into mid- to upper-crustal geological processes occurring at temperatures below 350\u202f\u00b0C. Most prominently, this deep-time approach has been used to investigate the erosional origin of the Great Unconformity surface, a continent-scale nonconformity that separates lowermost Paleozoic strata from underlying Precambrian basement. However, to continue extracting useful deep-time thermochronologic information with the ZHe method requires a more robust understanding of the kinetics of 4He diffusion in zircon. In this talk, I will present results from a study of the deep-time thermal history of basement rocks in the US Upper Midwest cratonic interior. Here, we have further investigated the origin of the Great Unconformity surface, and the long-term (in)stability of the Laurentian craton. I will also show ongoing work to improve our understanding of the kinetics of the ZHe system with a multiple pathway approach to modeling 4He diffusion in zircon.", "occurrence_notes":null, "guid":"143176-21892392@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/143176", "building_id":"1000188", "building_name":"1100 North University Building", "campus_maps_id":"628", "room":"1528", "location_name":"1100 North University Building", "has_livestream":0, "cost":"", "tags":["Earth And Environmental Sciences"], "website":"", "sponsors":[ { "group_name":"Earth and Environmental Sciences", "group_id":"3170", "website":"http:\/\/www.lsa.umich.edu\/earth" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2026\/01\/event_143176_original-1.jpg", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_thumb\/media\/attachments\/2026\/01\/event_143176_original-1.jpg", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2026\/01\/event_143176_original-1.jpg", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/event_large_2x\/media\/attachments\/2026\/01\/event_143176_original-1.jpg", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2026\/01\/event_143176_original-1.jpg", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_thumb\/media\/attachments\/2026\/01\/event_143176_original-1.jpg", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_thumb_square\/media\/attachments\/2026\/01\/event_143176_original-1.jpg", "group_large":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_large\/media\/attachments\/2026\/01\/event_143176_original-1.jpg", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_large_lightbox\/media\/attachments\/2026\/01\/event_143176_original-1.jpg", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_large_crop\/media\/attachments\/2026\/01\/event_143176_original-1.jpg", "event_list":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_list\/media\/attachments\/2026\/01\/event_143176_original-1.jpg", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2026\/01\/event_143176_original-1.jpg", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/event_grid\/media\/attachments\/2026\/01\/event_143176_original-1.jpg", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_grid_2x\/media\/attachments\/2026\/01\/event_143176_original-1.jpg", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_feature_large\/media\/attachments\/2026\/01\/event_143176_original-1.jpg", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_feature_thumb\/media\/attachments\/2026\/01\/event_143176_original-1.jpg" }, "occurrence_count":1, "first_occurrence":21892392 } }