5.1 MANNING Craig

Overview of Extreme Physics and Chemistry Research at DCO

Craig Manning, University of California Los Angeles

The overarching aim of the EPC community is to improve our understanding of the physical and chemical behavior of carbon at extreme conditions, as found in the deep interiors of Earth and other planets. In particular, it seeks Seek and identify possible new carbon-bearing materials in Earth and planetary interiors, to characterize the structural and dynamical properties of materials and identify their reactions and transformations at conditions relevant to Earth and planetary interiors, to develop, extend, combine and exploit experimental tools to investigate carbon-bearing samples in new regimes of pressure, temperature and bulk composition under controlled conditions, and improve sample analysis and recovery capabilities, and to develop, extend and improve databases and simulations of deep carbon material properties, reactions, and transport. Major contributions include new models for water and aqueous solutes at high pressure, improved understanding of the nature of carbon-oxygen bonding in CO2 and carbonate minerals and melts, better constraints on the properties and origins of carbon rich magmas in Earth, and insights into the properties of hydrocarbons and other organic compounds at extreme conditions. The results are being integrated into models of carbon transport in planetary interiors.