Permian radiolarians, chert and basalt from the Daxinshan Formation in Lancangjiang belt of southwestern Yunnan, China

The stratigraphical sequences composed of chert and basalt were found in the Daxinshan area of Simao and the Manbie area of Jinghong, southwestern Yunnan. The Middle Permian to ealiest Late Permian radiolarians, such as Follicucullus and Pseudoalbaillella, have been identified from the chert. The ch...

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Veröffentlicht in:	Science China. Earth sciences 2002-01, Vol.45 (1), p.63-71
Hauptverfasser:	Feng, Qinglai, Shen, Shangyue, Liu, Benpei, Helmcke, Dietrich, Qian, Xianggui, Zhang, Weiming
Format:	Artikel
Sprache:	eng
Schlagworte:	Aluminum Basalt Belts Chemical composition Chert Cherts Continental margins Geology Iron Island arcs Manganese Manganese oxides Ocean basins Permian Radiolaria Ratios Sequences Silica Silicon dioxide Stratigraphy Tholeiite Titanium dioxide Trace elements Volcanic rocks Volcanoes
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