BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Mixing and chemical transfers in particle clouds – implications 
 following planetary impacts - Quentin Kriaa\, Uni of Cambridge
DTSTART:20250612T103000Z
DTEND:20250612T113000Z
UID:TALK231001@talks.cam.ac.uk
CONTACT:Catherine Pearson
DESCRIPTION:At a late stage of its accretion\, the Earth experienced high-
 energy planetary impacts. Following each collision\, the metal core of the
  impactor sank as millimetric drops into a molten silicate magma ocean. Th
 e efficiency of chemical equilibration between these silicates and the met
 al core controlled the composition of the Earth controlled the initial tem
 perature and composition of rocky planets\, and hence the emergence of pla
 te tectonics\, the time when a solid inner core started to grow\, or the d
 riving of an early dynamo in the Earth’s core by exsolution of light ele
 ments.\n\n \n\nIn this talk I will present different experiments focusing 
 on the interaction of settling particle clouds with their surrounding thro
 ugh entrainment\, mixing and chemical reactions. I will first present expe
 riments on inert clouds settling in a quiescent fluid. Then\, I will discu
 ss the implications of planetary rotation on the efficiency of chemical tr
 ansfers inside particle clouds\, largely disregarded despite the strong ro
 tation rate of the proto-Earth that has been suggested by impact simulatio
 ns.
LOCATION:Open Plan Area\, Institute for Energy and Environmental Flows\, M
 adingley Rise CB3 0EZ
END:VEVENT
END:VCALENDAR