The Composition and Chemical Zoning in Garnet from High to Ultrahigh Pressure Metamorphic Rocks
详细信息
- 责任者：Xia Qiongxia (Key Laboratory of Crust-Mantle Materials and Environments ; CAS ; School of Earth and Space Sciences ; University of Science and Technology of China ; Hefei 230026 ; China) ; Zheng Yongfei
- 刊名：Acta Petrologica Sinica
- 出版年：2011
- 卷期：27(2)
- 关键词：石榴子石族 ; garnet group ; 高压变质作用 ; high pressure metamorphism ; 超高压变质作用 ; ultrahigh pressure metamorphism
- 页码：p.433-450
- 图表：8 illus., 225 refs.
- 分类号：0802
- 出版序号：20120191
- issnNo：ISSN1000-0569
- isbnNo：CN11-1922/P
摘要
The chemical composition and mineral inclusions preserved in garnet can be used to constrain the P-T conditions, metamorphic evolution, and fluid action. The chemical composition of garnet is related to many factors, such as whole-rock composition, P-T conditions, garnet-forming metamorphic reactions and the assemblage of coexisting minerals. Thus the major elements, trace elements, oxygen isotopes, mineral inclusions and their relations in garnet should all be taken into account when it is used to constrain the metamorphic P-T evolution in UHP metamorphic rocks.