BEGIN:VCALENDAR VERSION:2.0 PRODID:-//18.83.4.138//NONSGML kigkonsult.se iCalcreator 2.20// CALSCALE:GREGORIAN METHOD:PUBLISH X-WR-CALNAME:Oceans at MIT X-WR-CALDESC:Striving to understand\, harness and sustain Earth'\;s def ining frontier. X-FROM-URL:http://oceans.mit.edu X-WR-TIMEZONE:America/New_York BEGIN:VTIMEZONE TZID:America/New_York X-LIC-LOCATION:America/New_York BEGIN:STANDARD DTSTART:20171105T020000 TZOFFSETFROM:-0400 TZOFFSETTO:-0500 RDATE:20181104T020000 TZNAME:EST END:STANDARD BEGIN:DAYLIGHT DTSTART:20180311T020000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:EDT END:DAYLIGHT END:VTIMEZONE BEGIN:VEVENT UID:20170414T100000-n91e8qdrst0dg1c0kqh59dudk0@google.com DTSTAMP:20180503T093454Z CATEGORIES;LANGUAGE=en-US:MIT Seminar | PAOC Chemical Oceanography and Biog eochemistry CONTACT: DESCRIPTION:The What\, When\, Where\, and Why of Supereruptions\n\nSupereru ptions are gigantic volcanic eruptions (�450 km^3 of magma) the likes of w hich we have never witnessed. Yet\, this does not mean that we will never experience one. Such\nenormous eruptions have the potential to wreak havoc on life\, infrastructure\, travel\, and the\nenvironment. Consequently\, it is critical that we study past supereruptions to understand how\, when\ , where\, and why one might happen in the future. In addition\, supererupt ion deposits are evidence that large volumes of magma existed in the crust multiple times in Earth’s history\; thus\, studying these systems can inf orm on the magmatic construction of Earth’s crust.\n\nIn this talk\, I wil l address several outstanding and strongly debated questions regarding\nsu pereruptive systems: Where in the crust do these magmas reside? What shape do they take? How long do they persist in the crust before erupting? When \, why\, and over what timescales does the eruptive process occur? How are the giant volumes of crystal-poor high-silica rhyolite magma involved in supereruptions generated? Answering these questions is important both for practical reasons (e.g.\, hazards preparation and mitigation) and intellec tual ones (e.g.\, understanding crustal processes). \n\nTo address these q uestions\, I combine information from multiple scales and perspectives (fi eld studies\, geochemistry\, textural relations of crystals in rocks and m elt inclusions in crystals\, geochronology\, geobarometry\, phase-equilibr ia modeling\, and diffusion modeling). Results from this work suggest that we can make some broad generalizations about supereruptive systems\, but these systems have notable variability as well (e.g.\, their shape in the crust). This work also illustrates the power in using a multi-faceted\, mu lti-disciplinary approach to addressing questions in the Earth Sciences. DTSTART;TZID=America/New_York:20170414T100000 DTEND;TZID=America/New_York:20170414T110000 LOCATION:Building E25\, Room 119 SEQUENCE:0 SUMMARY:COG3 Seminar – Ayla Pamucku (Princeton) URL:http://oceans.mit.edu/event/cog3-seminar-ayla-pamucku-princeton X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\nThe What\, When\ , Where\, and Why of Supereruptions\n\nSupereruptions are gigantic volcani c eruptions (�450 km^3 of magma) the likes of which we have never witnesse d. Yet\, this does not mean that we will never experience one. Such\nenorm ous eruptions have the potential to wreak havoc on life\, infrastructure\, travel\, and the\nenvironment. Consequently\, it is critical that we stud y past supereruptions to understand how\, when\, where\, and why one might happen in the future. In addition\, supereruption deposits are evidence t hat large volumes of magma existed in the crust multiple times in Earth’s history\; thus\, studying these systems can inform on the magmatic constru ction of Earth’s crust.\n\nIn this talk\, I will address several outstandi ng and strongly debated questions regarding\nsupereruptive systems: Where in the crust do these magmas reside? What shape do they take? How long do they persist in the crust before erupting? When\, why\, and over what time scales does the eruptive process occur? How are the giant volumes of cryst al-poor high-silica rhyolite magma involved in supereruptions generated? A nswering these questions is important both for practical reasons (e.g.\, h azards preparation and mitigation) and intellectual ones (e.g.\, understan ding crustal processes). \n\nTo address these questions\, I combine inform ation from multiple scales and perspectives (field studies\, geochemistry\ , textural relations of crystals in rocks and melt inclusions in crystals\ , geochronology\, geobarometry\, phase-equilibria modeling\, and diffusion modeling). Results from this work suggest that we can make some broad gen eralizations about supereruptive systems\, but these systems have notable variability as well (e.g.\, their shape in the crust). This work also illu strates the power in using a multi-faceted\, multi-disciplinary approach t o addressing questions in the Earth Sciences.\n END:VEVENT END:VCALENDAR