X-ray diffraction structure measurements
| Autor: | Chrystele Sanloup, Charlotte de Grouchy |
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| Přispěvatelé: | Institut des Sciences de la Terre de Paris (iSTeP), Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Institut national des sciences de l'Univers (INSU - CNRS), SUPA, Centre for Science at Extreme Conditions and School of Physics and Astronomy, University of Edinburgh, Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | Magmas under pressure Magmas under pressure, 2018 HAL |
| Popis: | International audience; This chapter describes how X-ray structural measurements can be done on molten sili-cates under high pressures, using either large volume presses or diamond-anvil cells, the latter combined with resistive heating or laser heating techniques. A brief summary of the data obtained so far is given, followed by a description of both energy-dispersive and angle-dispersive techniques, including challenges and how they may be overcome. Three areas of research are then highlighted: 1) structural measurements at extreme pressure conditions up to 100 GPa, 2) tracking the structural environment of minor/trace elements in magmas, and 3) the different ways to obtain the density of melts from X-ray diffraction data. Finally, some future prospects are discussed. |
| Databáze: | OpenAIRE |
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