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Déformation expérimentale à Haute Température et Haute Pression de magmas partiellement cristallisés

Abstract : The development of shape-preferred orientation in magmas is often attributed to crystal rotation under anisotropic stresses. This mechanism has been investigated on a theoretical and experimental point of view. Previous experimental studies, however, barely consider the crystallisation mechanism under differential stresses.
Experiments performed at high pressure and high temperature (HP-HT) aimed at investigating this process, as well as crystal rotation. Such studies, however, require a device capable of magma deformation at HP-HT. This manuscript presents the tests of two devices specifically developed and the results of some runs performed in a Paterson Press. Most of the discussion is devoted to the experimental artefacts encountered and to the means to solve them.
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https://tel.archives-ouvertes.fr/tel-00008988
Contributor : Nathalie Pothier <>
Submitted on : Monday, April 11, 2005 - 9:42:27 AM
Last modification on : Thursday, March 5, 2020 - 6:49:18 PM
Long-term archiving on: : Friday, April 2, 2010 - 9:16:28 PM

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  • HAL Id : tel-00008988, version 1

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Rémi Champallier. Déformation expérimentale à Haute Température et Haute Pression de magmas partiellement cristallisés. Géologie appliquée. Université d'Orléans, 2005. Français. ⟨tel-00008988⟩

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