STABILITY OF HYDROUS MAGNESIUM SILICATES IN THE MANTLE TRANSITION ZONE

被引：133

作者：

KANZAKI, M ^{[1
]}

机构：

[1] UNIV ALBERTA,DEPT GEOL,EDMONTON T6G 2E3,ALBERTA,CANADA

来源：

PHYSICS OF THE EARTH AND PLANETARY INTERIORS | 1991年 / 66卷 / 3-4期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1016/0031-9201(91)90085-V

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Phase relations in the Mg(OH)2-SiO2 system have been studied up to 18 GPa. A new hydrous phase (phase E: Mg2.3Si1.3H2.4O6) was encountered at 13-17 GPa and 1000-degrees-C. Phase F (Mg1.2Si1.8H2.4O6), another new hydrous phase, was observed at 15.5 GPa and 800-degrees-C. The stability field of phase A was also briefly studied. These new hydrous phases might be stabilized in the mantle transition zone, especially in subducting slabs at those depths.

引用

页码：307 / 312

页数：6

共 17 条

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