Geochemical Characteristics of Early Palaeozoic Plagioclase Granite from Ophiolitic Cumulate 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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Geochemical Characteristics of Early Palaeozoic Plagioclase Granite from Ophiolitic Cumulate in Central Qiangtang, Northern Tibet, oft-com:office:smarttags" />China oft-com:office:office" />

详细信息

责任者：Hu Peiyuan (College of Earth Sciences ; Jilin University ; Changchun 130061 ; China) ; Li Cai
刊名：Geological Bulletin of China
出版年：2009
卷期：28(9)
关键词：蛇绿岩 ; ophiolite ; 斜长花岗岩 ; plagiogranite ; 羌塘盆地 ; Qiangtang Basin
页码：p.1297-1308
图表：10 illus., 5 tables, 30 refs.
分类号：0801
issnNo：ISSN1671-2552
isbnNo：CN11-4648/P

摘要

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Taoxinghu ophiolite was an important discovery of Longmu Co-Shuanghu suture zone in recent years. This discovery has given an answer to the doubt that there was not a complete ophiolite section in Longmu Co-Shuanghu suture zone, and it is an important evidence of the existence of this suture zone and at the same time it is one of the main foundations to confirm the time of the decomposition of oft-com:office:smarttags" />Paleo-tethys Ocean. The plagiogranite’s petro-geochemistry characteristics have indicated the attribute of oceanic ridge granite. Preliminary estimation is that this is due to complete Ca separation during the rapid rising process of magma and non-uniform distribution of garnet in the samples.

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