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Chapitre D'ouvrage Année : 2018

X-ray diffraction structure measurements

Résumé

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.

Domaines

Minéralogie
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Dates et versions

hal-01867312 , version 1 (04-09-2018)

Identifiants

  • HAL Id : hal-01867312 , version 1

Citer

Chrystèle Sanloup, Charlotte de Grouchy. X-ray diffraction structure measurements. Magmas under pressure, 2018. ⟨hal-01867312⟩
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