Decoding the thermochemical and magnetic evolution of asteroids using thermal modelling

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• Dr James Bryson, Earth Sciences, University of Cambridge
• Thursday 14 November 2019, 11:30-12:30
• Open Plan Area, BP Institute, Madingley Rise CB3 0EZ.

If you have a question about this talk, please contact Catherine Pearson.

The passage of heat throughout a planetary body is one of the fundamental processes that drives their long-term behaviour and evolution. The textures and compositions of different meteorites demonstrates that asteroids contained different amounts of heat, and as such displayed very different thermochemical evolutions. In this talk, I will present model results of the thermal evolution of different asteroids with the aim of uncovering how these bodies generated and transported heat. I will also use these results to predict when different asteroids could have generated magnetic fields through core dynamo activity. I will compare the models results with the textures and the magnetic remanences carried by a number of meteorites to recover some key properties of the parent asteroids of different meteorite groups. These results elucidate the key processes that occurred with asteroids and the physical properties that controlled how these bodies behaved across their active lifetimes.

This talk is part of the Institute for Energy and Environmental Flows (IEEF) series.

This talk is included in these lists:

• All Talks (aka the CURE list)
• Cambridge Energy Seminars
• Department of Earth Sciences seminars
• Institute for Energy and Environmental Flows (IEEF)
• NanoDTC Energy Materials Talks
• Open Plan Area, BP Institute, Madingley Rise CB3 0EZ
• history
• ps635

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