Kinematics, structure and relationship to metamorphism of the east‐west flow in the Sanbagawa Belt, southwest Japan
Kinematics, structure and relationship to metamorphism of the east‐west flow in the Sanbagawa Belt, southwest Japan
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日本西南部三波川带东西向流的运动学、结构及其与变质作用的关系
DOI：
10.1111/j.1440-1738.1992.tb00068.x
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发表时间：
1992
期刊：
影响因子：
1.5
通讯作者：
M. Radvanec
中科院分区：
文献类型：
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作者：
S. Wallis;S. Banno;M. Radvanec
摘要三巴川带的变形特征是东西向的韧性流，其方向与三巴川带的长度几乎平行。东西向流动（D1）导致四国中部变质层序大规模横卧褶皱，可以解释该地区的逆热构造。与D1显微结构相关的变质矿物化学分带也表明东西向流动是在逆行条件下形成的。因此，D1与掘出有关，而不是与俯冲过程有关。各种运动学指标表明，在东西向流动过程中，变形被划分为具有相对剪切意义的连续构造域。这表明体变形不是简单的剪切变形，而是包含了扁化的成分。
Abstract Deformation in the Sanbagawa Belt is characterized by ductile flow in an east-west direction sub-parallel to its length. The east-west flow (D1) caused large-scale recumbent folding of the metamorphic sequence in central Shikoku, which can explain the inverted thermal structure of this region. Chemical zoning of metamorphic minerals associated with D1 microstructures also suggest that the east-west flow developed under retrograde conditions. D1 is therefore related to exhumation rather than subduction processes. A variety of kinematic indicators show that during the east-west flow, deformation was partitioned into structurally continuous domains with opposed senses of shear. This suggests that bulk deformation was not simple shear but included a component of flattening.
Hara, I.、Shiota, T.、Hide, K.、Okamoto, K.、Takeda, K.、Hayasaka, Y. 和 Sakurai, Y.：“三波川带的推覆结构”。
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