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Instruments / Technical Area	Publication Details	Published	Actions
I08-Scanning X-ray Microscopy beamline (SXM)	The effects of thermal metamorphism on organic matter in the co3 carbonaceous chondrite meteorites E. Bonato , A. J. King , P. F. Schofield , B. Kaulich , T. Araki , M. K. Abyaneh , M. R. Lee , S. S. Russell The Ninth Symposium on Polar Science Show Abstract ▼ Abstract: Primitive CO3 carbonaceous chondrite meteorites provide a detailed record of the geological processes and events that have shaped our solar system over the last 4.5 billion years. They contain a fine-grained (≤ 1 μm) matrix (> 50 vol%) of amorphous and crystalline silicates, oxides, sulphides and metals that have remained largely unaltered since the time they accreted into an asteroid. The matrix of CO3 carbonaceous chondrites also contains ~5 wt% carbon in a wide variety of organic materials including soluble molecules, kerogen-like insoluble organic matter (IOM), and carbonaceous nanoglobules. The formation and evolution of the organic materials and their relationship to the mineralogy remains poorly understood mainly because of the fine-grained and heterogeneous nature of the matrix. However, new analytical techniques are now making it possible to study the relationship between organics and minerals in extra-terrestrial materials in-situ at high spatial resolution. Here, we present C K-edge X-ray absorption near edge structure (XANES) analyses of carbonaceous phases in the CO chondrites DOM 08006, NWA 7892 and Moss.	Dec 2018
I08-Scanning X-ray Microscopy beamline (SXM)	The oxidation state of iron in silicate minerals from the matrices of co carbonaceous chondrites Enrica Bonato , Ashley King , Paul Schofield , Burkhard Kaulich , Tohru Araki , Majid Abyaneh , Martin Lee , Sara Russell 49th Lunar and Planetary Science Conference 2018 Diamond Proposal Number(s): [14799, 17780] Open Access Show Abstract ▼ Abstract: We are investigating the effects of thermal meta-morphism on crystalline and amorphous silicates in the matrices of CO carbonaceous chondrites, which range in petrologic type from 3.0 to 3.8. Our aim is to better understand the initial formation conditions of the sili-cates, and to quantify how the degree of asteroidal heating has influenced their abundance, structure, chemistry and transformation behaviour. Here we pre-sent results from the CO chondrites DOM 08006 (CO 3.0), Kainsaz (CO 3.2) and Moss (CO 3.6).	Mar 2018

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