MISC

1991年12月

DEHYDRATION OF BRUCITE (MG(OH)2) AT HIGH-PRESSURES DETECTED BY DIFFERENTIAL THERMAL-ANALYSIS

GEOPHYSICAL RESEARCH LETTERS
  • M KANZAKI

18
12
開始ページ
2189
終了ページ
2192
記述言語
英語
掲載種別
出版者・発行元
AMER GEOPHYSICAL UNION

The differential thermal analysis (DTA) technique has been applied in a multi-anvil high-pressure apparatus to study the dehydration reaction of brucite (Mg(OH)2) to periclase (MgO) plus H2O at 4 to 6 GPa. At 4 GPa and 1030-degrees-C, endothermic and exothermic peaks due to dehydration and rehydration were observed during heating and cooling cycles, respectively. These peaks were shifted to higher temperature with increasing pressure (1080-degrees-C at 5 GPa; 1120-degrees-C at 6 GPa), suggesting that the reaction has a positive dT/dP slope within this pressure range. The stability of brucite under deep mantle condition is discussed.

リンク情報
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:A1991GY09300004&DestApp=WOS_CPL
ID情報
  • ISSN : 0094-8276
  • Web of Science ID : WOS:A1991GY09300004

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