Mineral Chemistry of Lamella Olivine and Its Implications for Mantle Rheology
详细信息
- 责任者：Sui Jianli (Key Laboratory of Active Tectonics and Volcano ; Institute of Geology ; China Earthquake Administration ; Beijing 100029 ; China) ; Fan Qicheng
- 刊名：Seismology and Geology
- 出版年：2012
- 卷期：34(4)
- 关键词：橄榄石 ; olivine ; 微结构 ; microtexture
- 页码：p.768-781
- 图表：6 illus., 3 tables, 40 refs.
- 分类号：0700
- issnNo：ISSN0253-4967
- isbnNo：CN11-2192/P
摘要
In this paper, the authors report two cases of lamellea (in scales of 1 μm and over 100 μm seperately) olivines in mantle xenoliths from the Halaha River and Chaoer River area, Central Great Xing’an Range. The results of EMP analysis indicate that the lamellae is Fe rich olivine. In response to the arguments against the hypothesis of exsolution and erosion, the authors discuss the behavior and mechanism of Cottrell cloud in olivine.