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DTSTAMP:20250915T131825
DTSTART;TZID=America/Detroit:20251010T153000
DTEND;TZID=America/Detroit:20251010T163000
SUMMARY:Lecture / Discussion:Smith Lecture: Madison L. Myers
DESCRIPTION:Caldera-forming\, large-volume eruptions (> 450 km³ magma) are among the most impactful volcanic events on Earth\, producing extensive ignimbrites and widespread ashfall hazards. Due to their rarity (reoccurrence interval ~100 ka)\, reconstructing their eruption dynamics requires detailed field mapping coupled with geochemical analysis. Together these tools can be used to identify distinct eruptive phases and reconstruct the magmatic plumbing system. Although still largely thought to be instantaneous events\, fed from a singular magmatic chamber\, field mapping in quaternary systems has highlighted that no single model can be used to understand their behavior. Supereruptions can start mildly over weeks to months before escalating into climactic activity or go into vigorous activity immediately. Field work in Yellowstone has highlighted that individual supereruptions can record activity that required days to weeks or eruptive time or be prolonged over decades. The magmatic sources vary from single bodies of magma to multiple magma bodies that are simultaneously or sequentially tapped. In contrast to these variations\, there are some aspects that are remarkable similar. For instance\, the erupted magmas are often assembled at shallower depths (4–10 km) where mineral diffusion timescales consistently return evidence that only decades to centuries of unrest occur prior to eruption. Examples will be provided from our recent work remapping the Lava Creek Tuff in Yellowstone\, where nothing is as simple as originally presumed.
UID:139366-21885337@events.umich.edu
URL:https://events.umich.edu/event/139366
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Earth And Environmental Sciences
LOCATION:1100 North University Building - 1528
CONTACT:
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BEGIN:VEVENT
DTSTAMP:20250930T220431
DTSTART;TZID=America/Detroit:20251010T160000
DTEND;TZID=America/Detroit:20251010T170000
SUMMARY:Workshop / Seminar:Algebraic Geometry Learning Seminar: Super math
DESCRIPTION:Crash course on super math: super schemes\, super vector bundles and connections on them\, etc.
UID:140118-21886640@events.umich.edu
URL:https://events.umich.edu/event/140118
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4096
CONTACT:
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