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Etude expérimentale de l’altération hydrothermale des roches ultrabasiques

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(1)Etude expérimentale de l’altération hydrothermale des roches ultrabasiques Maria Pens. To cite this version: Maria Pens. Etude expérimentale de l’altération hydrothermale des roches ultrabasiques. Sciences de la Terre. Université de Lyon, 2016. Français. �NNT : 2016LYSE1107�. �tel-01401043�. HAL Id: tel-01401043 https://tel.archives-ouvertes.fr/tel-01401043 Submitted on 22 Nov 2016. HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers.. L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignement et de recherche français ou étrangers, des laboratoires publics ou privés..

(2) 1ƒG¶RUGUH117/<6(  . THESE de DOCTORAT DE L’UNIVERSITE DE LYON RSpUpHDXVHLQGH. l’Université Claude Bernard Lyon 1 . Ecole Doctorale de Matériaux 1ƒDFFUpGLWDWLRQ. Spécialité de doctorat6FLHQFHVGHOD7HUUH   . 6RXWHQXHSXEOLTXHPHQWOHSDU. Maria PENS. Etude expérimentale de l’altération hydrothermale des roches ultrabasiques  'HYDQWOHMXU\FRPSRVpGH   5(<1$5'%UXQR'LUHFWHXUGH5HFKHUFKH&156(16GH/\RQ3UpVLGHQW  *2'$5'0DUJXHULWH'LUHFWHXUGH5HFKHUFKH&1568QLYHUVLWpGH0RQWSHOOLHU5DSSRUWULFH   %(1(=(7+3DVFDOH'LUHFWHXUGH5HFKHUFKH&1568QLYHUVLWpGH7RXORXVH5DSSRUWULFH  $8=(1'($QQH/LQH0DvWUHGH&RQIpUHQFHV8QLYHUVLWpGH*UHQREOH([DPLQDWULFH  '$1,(/,VDEHOOH3URIHVVHXU8QLYHUVLWp&ODXGH%HUQDUG/\RQ'LUHFWULFHGHWKqVH  $1'5($1,0XULHO0DvWUHGH&RQIpUHQFHV8QL&ODXGH%HUQDUG/\RQ&RGLUHFWULFHGHWKqVH.

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Figure

Figure 1.1 : Enclave de péridotite, au sein d’un basalte, présentant les principaux minéraux  constitutifs que sont l'olivine (Ol), l’orthopyroxène (Opx) et le clinopyroxène (Cpx) (source:
Figure 1.2 : Diagramme ternaire de composition des péridotites océaniques (source : christian.free.fr).
Figure 1.3: Maille élémentaire de la forstérite ; le magnésium occupe deux sites octaédriques  distincts M1 et M2 (source: Clenet, 2009)
Figure 1.5: Diagramme de pression-température-profondeur de stabilité des serpentines  (modifié d’après : Deschamps et al., 2013).
+7

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