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このアイテムの引用には次の識別子を使用してください: http://hdl.handle.net/10126/4515

タイトル: Convergent processes of microplates ―Application of major plate convergence to microplate Tectonics―
著者: Isozaki, Yukio
キーワード: Microplate
Fore-arc sliver
Southwest Japan
雑誌名: Report of the Institute of the Kuroshio Sphere, Kochi University. Special series = くろしお. 特別号 : 高知大学黒潮圏研究所所報
発行日: 20-Dec-1989
出版者: The Institute of The Kuroshio Sphere, Kochi University
抄録: Convergent processes of microplates have not been fully clarified yet, however, they are fundamentally common with those of major plates. Convergent processes of major plate, in particular those related to subduction of oceanic plate, are briefly reviewed on the basis of modern and ancient subduction-accretion complexes. Bio-and lithostratigraphically reconstructed oceanic plate stratigraphy, composed of MORB basalt, pelagic and hemipelagic sediments, and coarse-grained terrigenous clastics in ascending order, is critical in determining the time of accretion and age of subducted oceanic plate. Such criterion is well applicable to microplate tectonics. Development of microplate is not capable of forming major orogens but it is effective in modifying pre-existing orogenic arrangement. The Nankai fore-arc sliver in Southwest Japan, for example, is a tectonic modifier which rearranged the Late Paleozoic to Cenozoic Cordilleran-type orogenic edifice of Southwest Japan. Some geologic phenomena such as dextral strike-slip motion of the Median Tectonic Line and abrupt termination of the Sanbagawa belt in east Kyushu are best explained by the westward motion of the Nankai fore-arc sliver.
注記: Japanese WESTPAC Symposium. June 6-7, 1989. Ocean Research Institute, University of Tokyo. 西太平洋におけるマイクロプレートテクトニクスと古環境地図に関する研究会. 1989年6月6日-7日. 東京大学海洋研究所.
URI: http://hdl.handle.net/10126/4515
出現コレクション:02 くろしお:高知大学黒潮圏研究所 所報  1(1986)-11(2001)


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