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Research at St Andrews

Sami Mikhail

Person

Sami Mikhail
Postal address:
School of Geog & Geosciences
Earth Sciences
Irvine Building
St Andrews
United Kingdom

E-mail: sm342@st-andrews.ac.uk

Direct phone: +44 (0)1334 463915

Research overview

The motivation for my research is to understand how the interior of a planet affects and controls the composition of its surface, and how volcanic degassing relates to long-term habitability. My research combines isotopic and petrological investigations of natural samples alongside high-pressure and high-temperature experimental and theoretical projects. My main aims are to use isotopic and thermodynamic constraints to understand volatile cycling in to and out of planets. I primarily apply these geochemical tools to understand the pathways followed by volatile elements subducted into terrestrial mantle over geological timescales, with a strong emphasis on constraining the origin(s) of diamond-forming carbon in the mantle, and the nature of the geodynamic volatile cycle(s).

I also work towards understanding the formation and deep-time evolution of extra-terrestrial planetary atmospheres, such as those around Venus and Mars.

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