马里亚纳俯冲系统的构造特征

发布时间：2018-05-18 15:49

本文选题：马里亚纳 + 俯冲带　；参考：《地学前缘》2017年04期

【摘要】：西太平洋马里亚纳俯冲带具有典型的"沟-弧-盆"体系,是由太平洋板块向西俯冲到菲律宾海板块之下形成的洋-洋俯冲带。前人研究成果为理解该区上覆板块地壳结构、弧前蛇纹岩化过程、岛弧及弧后岩浆作用、俯冲板块形态及其相关俯冲动力学过程提供了良好的约束。本文对马里亚纳地区现有研究成果,特别是构造研究内容,进行了总结,发现马里亚纳俯冲带的三维精细构造特征并没有得到很好的厘定,导致马里亚纳弧后扩张的动力学机制存在较大争议。这主要是因为缺乏观测数据以及反演方法的局限性。为此,未来围绕马里亚纳俯冲带的构造特征研究,应首先开展长期系统的海底观测。
[Abstract]:The Mariana subduction zone in the western Pacific Ocean has a typical "trench-arc basin" system. It is an ocean-ocean subduction zone formed by the westward subduction of the Pacific plate under the Philippine Sea plate. The results of previous studies provide a good constraint for understanding the crustal structure of the overlying plate, the process of serpentinization in front of the arc, the magmatism of island arc and back-arc, the shape of subduction plate and its related subduction dynamics. In this paper, we summarize the existing research achievements, especially the contents of tectonic research in the Mariana area, and find that the three-dimensional fine structural characteristics of the Mariana subduction zone have not been well defined. The kinetic mechanism leading to the expansion of the Mariana arc is controversial. This is mainly due to the lack of observational data and the limitations of inversion methods. Therefore, in order to study the structural characteristics of the Mariana subduction zone in the future, a long-term systematic submarine observation should be carried out.
【作者单位】：海底科学与探测技术教育部重点实验室中国海洋大学海洋地球科学学院;青岛海洋科学与技术国家实验室海洋地质功能实验室;
【基金】：国家自然科学基金项目(41602207,41325009) 泰山学者特聘教授项目鳌山卓越科学家计划项目(2015ASTP-0S10) 国家海洋局重大专项项目(GASI-GEOGE-01)
【分类号】：P542

【参考文献】