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SUMMARY:Exploring controls on the distribution of sulfur-loving elements i
 n Icelandic magmas - Callum Reekie\, Earth Sciences Department\, Universit
 y of Cambridge
DTSTART:20200611T120000Z
DTEND:20200611T130000Z
UID:TALK142081@talks.cam.ac.uk
CONTACT:Céline Marie Vidal
DESCRIPTION:Chalcophile (sulfur-loving) and siderophile (iron-loving) elem
 ents (e.g.\, Cu\, Ag\, Pt and Au\; collectively called CSE) are of signifi
 cant economic importance. In basaltic melts\, the abundance and distributi
 on of CSE is chiefly controlled by sulfide minerals\, both during partial 
 melting and crustal differentiation processes. Typically\, melts depleted 
 in CSE are considered to have become sulfide-saturated during crustal diff
 erentiation. However\, recent work has shown that CSE abundances and ratio
 s correlate with lithophile element proxies which are sensitive to mantle 
 fertilisation and melting processes. In this talk I will discuss our resul
 ts from Icelandic basalts. Importantly\, Icelandic basalts have been shown
  to be derived from a chemically and lithologically heterogeneous mantle s
 ource\, and could therefore be key to unravelling the different controls o
 n CSE variability in basaltic melts.
LOCATION: Webinar  (via Zoom online)- link to follow
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