Deformational Characteristics of the Niushoushan-Luoshan Fault Zone and Its Tectonic Implications
详细信息
- 责任者：Wang Weitao (State Key Laboratory of Earthquake Dynamics ; Institute of Geology ; China Earthquake Administration ; Beijing 100029 ; China) ; Zhang Peizhen
- 刊名：Seismology and Geology
- 出版年：2013
- 卷期：35(2)
- 关键词：断裂带 ; fracture zones ; 构造变形 ; tectonic deformation ; 青藏高原 ; Qinghai-Tibetan Plateau
- 页码：p.195-207
- 图表：illus., 45 refs.
- 分类号：0300
- issnNo：ISSN0253-4967
- isbnNo：CN11-2192/P
摘要
As the outermost fault zone in the northeastern margin of the Tibetan Plateau,the deep structures,distribution,movement feature and deformational mechanism of the Niushoushan-Luoshan Fault zone are crucial to understand the formation and evolution of the arcuate fault zones in the northeast corner of the Tibetan Plateau. In this paper,the authors analyze four seismic reflection sections across the Niushoushan-Luoshan Fault zone and map in detail the area within the fault zone. These data indicate that the Niushoushan-Luoshan Fault zone is a discrete fault zone. The fault zone can be subdivided into three parts. The discontinuity and segmentation feature of the Niushoushan-Luoshan Fault zone suggest different deformational styles in different locations of the fault zone associated with the process of northeastward propagation of the Tibetan plateau.
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