BEGIN:VCALENDAR
PRODID:-//Columba Systems Ltd//NONSGML CPNG/SpringViewer/ICal Output/3.3-
 M3//EN
VERSION:2.0
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VEVENT
DTSTAMP:20180911T094308Z
DTSTART:20180207T130000Z
DTEND:20180207T140000Z
SUMMARY:Letting off steam: New insights into volatile saturation and magm
 a degassing
UID:{http://www.columbasystems.com/customers/uom/gpp/eventid/}j11a-jlxj33
 ni-sd1c8
DESCRIPTION:Join Madeleine Humphreys from Durham University for her semin
 ar on volatile saturation and magma degassing.\n\nDissolved magmatic gas
 es (volatiles) are one of the most important controls on the chemical an
 d physical properties of melts and magmas\, on magma phase relations and
  mineral abundances\, and on melt viscosity. The release of volatiles in
 to bubbles is the main driver of explosive volcanic eruptions. Consequen
 tly the timing of volatile exsolution\, and the style and extent of phys
 ical segregation of gas from silicate melt\, are critical for understand
 ing the potential explosivity of magmatic systems\, as well as fractiona
 tion and mineralisation processes. \n\nIn this talk Madeleine will explo
 re how hydrous minerals such as apatite and amphibole can have significa
 nt advantages over traditional melt inclusion studies in understanding v
 olatile enrichment\, saturation and degassing. Apatite is particularly s
 ensitive to the composition of fluids in equilibrium with magma\, and am
 phibole is a useful monitor of trace metals and oxidation state. Togethe
 r\, this provides new insights into the timing of volatile saturation\, 
 the conditions of magma storage and eruption\, and the composition of ex
 solved fluids prior to volcanic eruption or magma solidification.\n\nThi
 s seminar is open to all and is a good opportunity to meet fellow studen
 ts and staff\; tea and coffee will be served at 12:30pm in the lobby on 
 the first floor of the Williamson Building beforehand.
STATUS:TENTATIVE
TRANSP:TRANSPARENT
CLASS:PUBLIC
LOCATION:G.47\, Williamson Building\, Manchester
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