Apologies for multiple cross postings
We would like to draw your attention to our session at Goldschmidt 2021 to
be held in Lyon, France on 4-9 July. The conference will be in a hybrid
format with a combination of onsite and online meetings.
Session 2c: Understanding terrestrial accretion through elemental and
Keynote speaker: Jabrane Labidi (IPGP)
The thermochemical state of Earth’s mantle and core is inherited from
processes that took place during the first few hundred million years after
condensation of the first solids. High pressures and temperatures related to
violent impacts likely gave rise to a magma ocean and resulted in the
fractionation of elements and isotopes at a very early stage in Earth’s
history through two primary mechanisms; i) core formation and ii)
volatilization. Finally, the late delivery of material to the terrestrial
planets can be quantified by high precision isotopic studies and elemental
ratio evolution through space and time. A suite of high pressure and high
temperature devices can reproduce the P-T conditions of Earth and planetary
differentiation. These techniques can be coupled with analytical tools from
microanalyses (e.g., XRD, Mössbauer) to isotopic measurements. These are
complemented by ab
initio calculations, through which it is possible to interrogate the extreme
conditions typical of planetary formation.
In this session, we aim to bring together experimental, geochemical and
modelling studies that focus on elemental and isotopic fractionation and can
help us to better understand the consequences of accretion and
differentiation on the thermal- and compositional evolution of the Earth’s
core and mantle, and those of other rocky planets. To that effect we welcome
contributions from the fields of experimental petrology, isotope
geo/cosmochemistry and numerical modelling to our session.
The abstracts submission's deadline is 26 Feb 2021 (23:59 CET).
We look forward to your contributions!
With best wishes,
Ingrid Blanchard, Raúl Fonseca, Paolo Sossi and Eleanor Jennings