Étude expérimentale des transformations de phase dans un gradient thermique : application au granite de Soultz-sous-Forêts, France
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- 作者：Baldeyrou ; Armelle ; Vidal ; Olivier ; Fritz ; Bertrand
- 关键词：gradient thermique ; expé ; rience sous gradient ; pé ; trologie expé ; rimentale ; miné ; raux argileux ; granite ; site gé ; othermique ; interactions eau&ndash ; roche ; thermal gradient ; tube-in-tube experiment ; experimental petrology ; clay
- 刊名：Comptes Rendus Geoscience
- 出版年：2003
- 出版时间：April, 2003
- 年：2003
- 卷：335
- 期：4
- 页码：371-380
- 全文大小：321 K
文摘
The circulation of an injected fluid in the deep granite of the Soultz-sous-Forêts HDR (‘Hot Dry Rock’) site causes important textural and mineralogical modifications. In order to determine the potential crystallization sequences along the fluid pathway, several experiments under thermal gradient were conducted at 600 bar (between 300 and 200°C). After 40 days, the observed sequences of the newly formed products along the thermal gradient are always as follows, from high to low temperatures: quartz, feldspars, and finally interstratified clays, this implying a significant mobility of aluminium in the solution. To cite this article: A. Baldeyrou et al., C. R. Geoscience 335 (2003).