BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//132.216.98.100//NONSGML kigkonsult.se iCalcreator 2.20.4//
BEGIN:VEVENT
UID:20250312T172339EDT-2612fgRS7o@132.216.98.100
DTSTAMP:20250312T212339Z
DESCRIPTION:Please join us this Friday at 11AM in FDA 232\, the Gill Room o
 r on Zoom for an EPS Seminar by Dr. Charles-Édouard (ChEd) Boukaré\, from 
 l’Institut de physique du globe de Paris (IPGP).\n\nJoin Zoom Meeting\n\nh
 ttps://mcgill.zoom.us/j/84956043732?pwd=bTFua0xIcDZnYVZBYjVnVDgrTTlkdz09\n
 \nMeeting ID: 849 5604 3732\n\nPasscode: 679505\n\nTalk Abstract \n\nRocky
  planets were probably hot when they formed. Heat of accretion and radioge
 nic decay can significantly heat terrestrial bodies early in the solar sys
 tem. At the end of planetary accretion\, collisions of large planetary emb
 ryos produced giant impacts. The giant impact that gave birth to the Earth
 -Moon system probably involved an impactor the size of Mars. Such giant im
 pact is able to entirely melt the proto-Earth and the early Moon. After im
 pact\, molten rocky mantles are called magma oceans.\n\nDuring the magma o
 cean stage\, metal-silicate equilibration sets the composition of the core
 . Primordial H20 or CO2atmospheres that degas from the magma ocean can eit
 her build-up or be desiccated. Fractional solidification of the mantle can
  generate mantle heterogeneities that shapes the long-term solid-state man
 tle dynamics. These mantle heterogeneities could also affect the compositi
 on of the lavas that erupt throughout the history of the planet. Magma oce
 ans set the initial conditions for the long-term evolution of terrestrial 
 planets. However\, magma ocean dynamics remains poorly understood.\n\nThe 
 first magma ocean models were proposed in the late 70s based on samples re
 trieved during the Apollo missions. Recently\, magma oceans are receiving 
 a growing attention due to major advances in high pressure mineral physics
 \, ab-initio molecular dynamics\, isotopes geochemistry and geophysical fl
 uid dynamics. Applications of the magma ocean concept is not restricted to
  the Moon. Magma oceans are rather invoked as a general framework to descr
 ibe the early dynamics of rocky planets.\n\nI will first introduce the can
 onical magma ocean model. Understanding magma ocean physics requires an in
 terdisciplinary approach that includes\, among others\, fluid dynamics\, h
 igh pressure thermodynamics\, and mineral physics. Indeed\, the most chall
 enging aspects of magma ocean emerge from strong coupling between fluid dy
 namics and chemistry. After presenting the methods I developed to tackle t
 hese challenges\, I will present a more recent picture of magma ocean dyna
 mics with several applications to planets in our solar system.\n
DTSTART:20211029T150000Z
DTEND:20211029T160000Z
LOCATION:FDA 232 (Gill Room) and Zoom
SUMMARY:Seminar- Magma Oceans and the Early Evolution of Rocky Planets 
URL:/eps/channels/event/seminar-magma-oceans-and-early
 -evolution-rocky-planets-334420
END:VEVENT
END:VCALENDAR