Petrology and Metamorphism of Garnet-Muscovite Schist from High Pressure Metamorphic Belt in Central Qiangtang, Northern Tibet, <?xml:namespace prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" /><st1:country-region w:st="on"><st1:place w:st="on">China</st1:place></st1:country-region> <?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p>

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Petrology and Metamorphism of Garnet-Muscovite Schist from High Pressure Metamorphic Belt in Central Qiangtang, Northern Tibet, China

详细信息

责任者：Dong Yongsheng (College of Earth Sciences ; Jilin University ; Changchun 130061 ; China) ; Zhang Xiuzheng
刊名：Geological Bulletin of China
出版年：2009
卷期：28(9)
关键词：石榴子石族 ; garnet group ; 白云母片岩 ; muscovite schist ; 羌塘盆地 ; Qiangtang Basin
页码：p.1201-1206
图表：1 illus., 1 table, 1 plate, 24 refs.
分类号：0802
issnNo：ISSN1671-2552
isbnNo：CN11-4648/P

摘要

The central Qiangtang high pressure metamorphic belt, consisting of eclogite, glaucophane schist and garnet-muscovite schist, is located in Longmucuo-Shuanghu-Lancangjiang plate suture zone. It’s forming process has great significance for discussion on tectonic evolution of the plate suture zone. In this paper, the garnet-muscovite schist is taken as the research object. According to the study on its petrography and electronic microprobe analysis, it is proved that the garnet in garnet-muscovite schist, showing multistages metamorphism, saw multi-stages metamorphic crystallization. Data above, together with petrofabric characteristics, at least three metamorphic stages of garnet-muscovite schist have been distinguished.