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粒度对橄榄石流变性质的影响

  • 孙立江 ,
  • 马麦宁
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  • 中国科学院研究生院,北京 100049

收稿日期: 2010-04-22

  网络出版日期: 2010-11-15

基金资助

国家自然科学基金(40774047,40304005)和国土资源部深部探测专项SinoProbe-07-04资助 

Effects of the grain size on the rheology of olivine

  • SUN Li-Jiang ,
  • MA Mai-Ning
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  • Graduate University, Chinese Academy of Sciences, Beijing 100049, China

Received date: 2010-04-22

  Online published: 2010-11-15

摘要

依据已有的高温高压流变实验数据,计算了橄榄石流变律的基本参数,并得到了蠕变机制转换的粒度范围.初步探讨了上地幔150km深度处的主要蠕变机制,并得到了相应参数下的应变率-应力-粒度机制图.

关键词: 橄榄石; 粒度; 流变; 上地幔

本文引用格式

孙立江 , 马麦宁 . 粒度对橄榄石流变性质的影响[J]. 中国科学院大学学报, 2010 , 27(6) : 761 -767 . DOI: 10.7523/j.issn.2095-6134.2010.6.005

Abstract

Using the previous experimental data at high pressure and high temperature, the main parameters of rheological law for olivine were discussed. The grain size range for the rheological change were determined by the theoretical discriminant. The main rheological mechanism and the viscosity in the 150 kilometers’ depth were preliminarily discussed, and a deformation map of strain rate-stress-grain size under certain conditions was obtained.

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