Evolution of the Sea of Japan back-arc and some unsolved issues
Evolution of the Sea of Japan back-arc and some unsolved issues
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DOI：
10.1016/j.tecto.2016.08.020
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发表时间：
2017-07
期刊：
影响因子：
2.9
通讯作者：
A. Horne;Hiroshi P. Sato;T. Ishiyama
中科院分区：
文献类型：
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作者：
A. Horne;Hiroshi P. Sato;T. Ishiyama
日本海弧后系统提供了一个绝佳的机会来研究几乎完整的大陆-海洋弧后系统，其中最近的构造反转暴露了陆地上的整个弧后结构序列。此外，日本在全国范围内部署的密集地震/大地测量监测网络以及可移动的海底地震仪池，为研究深部弧后结构提供了丰富的数据集。早期的研究已经对弧后打开有了初步的了解：时间、结构演化、岩浆活动的时间/空间模式。许多问题仍然存在，其中包括弧后张开的机制（拉开或海沟回滚）、相互作用板块的动力学（菲律宾海板块随时间的位置）、异常厚的日本海洋壳的起源以及远场力的可能影响（印度-亚洲碰撞）。考虑到现有的高分辨率地球物理数据集和弧后层序和结构在陆地上的广泛暴露，日本海弧后是解决弧后系统如何演化的局部和更普遍问题的一个有希望的背景。在这里，我们根据我们自己和其他人的工作回顾了日本海的构造背景和地质演化，并简要讨论了需要进一步研究的突出问题。
The Sea of Japan back-arc system provides an exceptional opportunity to study a virtually intact continent-ocean back-arc system in which recent tectonic inversion has exposed entire sequences of back-arc structure on land. Moreover, Japan's dense seismic/geodetic-monitoring networks, deployed country-wide, as well as moveable pools of ocean bottom seismometers, provide a rich data set through which to investigate deep back-arc structure. Earlier investigations have produced an initial understanding of back-arc opening: timing, structural evolution, temporal/spatial patterns of magmatic activity. Many questions remain, among them, the mechanism of back-arc opening (pull-apart or trench-rollback), the dynamics of interacting plates (location of the Philippine Sea plate with time), the origin of the anomalously thick Japan Sea ocean crust, and possible influences of far-field forces (India-Asia collision). Given existing high-resolution geophysical data sets and extensive on-land exposures of back-arc sequences and structures, the Sea of Japan back-arc is a promising context in which to address both local and more universal questions of how back-arc systems evolve. Here we review the tectonic setting and geological evolution of the Sea of Japan, based our own and others' work, and briefly discuss outstanding questions that invite further investigation.