Recent high-pressure experiments that shed light on planetary cores

ORAL  · Invited

Abstract

High-pressure observations of the physical and chemical properties of geological materials form the basis for our understanding of planetary interiors. This talk will review a few recent experimental results that expand our understanding of the cores of terrestrial planets, in particular the composition and structure of the cores of Earth and Mars.

*Parts of this work were supported by the NSF (DGE1745303, EAR-1654687), NASA (NNX17AE27G), the Department of Energy (DE-NA0003858, DE-AC02-05CH11231), the European Research Council, and the Henry Luce Foundation.

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Publication: "Core Formation and Geophysical Properties of Mars." M. C. Brennan, R. A. Fischer, J. C. Irving (2020). Earth and Planetary Science Letters 530, 115923.
"High-Pressure Deformation of Iron–Nickel–Silicon Alloys and Implications for Earth's Inner Core." M.C. Brennan, R. A. Fischer, S. Couper., L. Miyagi, D. Antonangeli, G. Morard (2021). Journal of Geophysical Research: Solid Earth 126, e2020JB021077.
"Timing of Martian Core Formation from Models of Hf–W Evolution Coupled with N-body Simulations." M. C. Brennan, R. A. Fischer, F. Nimmo, D. P. O'Brien (2022) Geochimica et Cosmochimica Acta 316, 295–308.

Presenters

  • Matthew C Brennan

    • Los Alamos National Laboratory (LANL)

Authors

  • Matthew C Brennan

    • Los Alamos National Laboratory (LANL)