Chemical Compositions of Phenocryst-Hosted Melt Inclusions from the Sihetun Basalt: Implications for the Magma Evolution
详细信息
- 责任者：Zhang Chunlai (State Key Laboratory of Geological Processes and Mineral Resources ; China University of Geosciences ; Wuhan 430074 ; China) ; Liu Yongsheng
- 刊名：Geochimica
- 出版年：2011
- 卷期：40(2)
- 关键词：玄武岩 ; basalts ; 岩浆作用 ; igneous processes ; 流体包裹体 ; fluid inclusions ; 辽宁 ; Liaoning Province
- 页码：p.109-125
- 图表：7 illus., 1 table, 78 refs.
- 分类号：0801
- 出版序号：20120165
- issnNo：ISSN0379-1726
- isbnNo：CN44-1398/P
摘要
Single melt inclusions hosted in olivine and clinopyroxene phenocrysts in the Mesozoic Sihetun basalts were analyzed by LA-ICPMS. The results show that, although melt inclusions show trace element patterns similar to the bulk rocks, melt inclusions have much larger compositional variations than bulk lava in terms of both major and trace elements. CaO and Cr2O3 contents and CaO/Al2O3 ratio of melt inclusion in Cpx correlate positively with Mg# of Cpx, reflecting the effect of Cpx crystallization on the magmatic evolution.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |