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ri ben fu chong dai ying li chan sheng yu chuan bo de shu zhi mo ni
Author(s): 
Pages: 97-108
Year: Issue:  2
Journal: Seismology and Geology

Keyword:  日本俯冲带应力产生应力传播三维数值模拟;
Abstract: 用三维有限元模拟了日本地冲带,分析了板块推力、板块拉力、动态闭锁断层和解耦板间地震对上覆板块内部应力状态的贡献,表明大洋板块推力是海沟。岛弧地区挤压应力的主要来源,这种应力仅有小部分传播到上覆板块内部,软流圈的蠕变能促进这个应力传播过程使岛弧区的应力增大,由密度差异引起的板块拉力产生了分散的挤压应力和拉张应力。断层闭锁导致应力局部集中,板间地震的断层错动只对破裂附近小范围的应力状态产生影响。
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