A preliminary analysis of arcuate structures-relationship of the island arc and deep-sea trench to the dip angle of Benioff zone

作     者：Wu Lun, Liang Haihua, Ren Fuhu and Li Maosong The Department of Geography, Peking University, Beijing, China The Department of Geology, Peking University, Beijing, China Wu Lun, Liang Haihua, Ren Fuhu and Li Maosong The Department of Geography, Peking University, Beijing, China The Department of Geology, Peking University, Beijing, China

作者机构：Dept of Geography Peking Univ. Beijing China China 

出 版 物：《Acta Oceanologica Sinica》 (海洋学报（英文版）)

年 卷 期：1989年第8卷第1期

页      面：125-136页

核心收录：

学科分类：0710[理学-生物学] 0908[农学-水产] 07[理学] 0707[理学-海洋科学] 

主　　题：A preliminary analysis of arcuate structures-relationship of the island arc and deep-sea trench to the dip angle of Benioff zone deep 

摘      要：The origin of arcuate islands and deep-sea trenches has been studied for a long time and various interpretations have been proposed. In this paper, some analytical models are put forward from a geometrical viewpoint and then the theoretical dip angles of the underthrusting slabs of circum-Pacific island arcs are computed and compared with those of the Benioff zone. As a result, it is found that the dip angle of the underthrusting slab is one of the main factors determining the curvature of the arcuate structure. The authors consider that this result may contribute to the plate theory.