泰国北部Inthanon带外来硅质岩块的中、晚二叠世放射虫:对与古特提斯消减有关的混杂岩形成时代的约束 |
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关键词:Northern Thailand Mélange Radiolarian Permo-Carboniferous |
基金项目: |
作者 | 单位 | E-mail | Yoshihito KAMATA | Graduate School of Life and Environmental Sciences, University of Tsukuba | yoshi_kamata@geol.tsukuba.ac.jp | Hidetoshi HARA | Geological Survey of Japan, AIST, 1-1-1 Higashi | | Katsumi UENO | Department of Earth System Science, Faculty of Science, Fukuoka University | | Apsorn SARDSUD | Bureau of Geological Survey, DMR | | Thasinee CHAROENTITIRAT | Department of Geology, Faculty of Science, Chulalongkorn University | | Punya CHARUSIRI | Department of Geology, Faculty of Science, Chulalongkorn University | | Ken-ichiro HISADA | Graduate School of Life and Environmental Sciences, University of Tsukuba | |
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摘要: |
Middle and Late Permian Radiolarians from Allochthonous Chert Blocks in the Inthanon Zone, Northern Thailand: Constraints for the Formation Age of Mélange Fabric Related to Paleo-Tethys Subduction |
The Inthanon Zone of Northern Thailand, origi-nally proposed by Barr and Macdonald (1991), is characterized by the occurrence of Paleo-Tethyan pe-lagic sediments including Carboniferous–Permian seamount-type carbonate associated with oceanic ba-saltic rocks and Middle Devonian–Middle Triassic radiolarian chert (Ueno, 1999; Ueno and Hisada, 2001; Ueno and Charoentitirat, 2011). These pelagic rocks have been mainly studied from the viewpoint of bio-stratigraphy to clarify the duration of their deposition. These studies concluded the Paleo-Tethys to be a vast ocean basin once existed between the Indochina and Sibumasu continental blocks during Devo-nian–Triassic times. |
Yoshihito KAMATA,Hidetoshi HARA,Katsumi UENO,Apsorn SARDSUD,Thasinee CHAROENTITIRAT,Punya CHARUSIRI,Ken-ichiro HISADA.2012.Middle and Late Permian Radiolarians from Allochthonous Chert Blocks in the Inthanon Zone, Northern Thailand: Constraints for the Formation Age of Mélange Fabric Related to Paleo-Tethys Subduction[J].Acta Geoscientica Sinica,33(s1):36-37. |
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