The Discovery of Structural Wedges in the Central Longmen Mountains Front Belt and Its Geometric and Kinematic Characteristics: Constraints on the Dynamical Mechanism of Uplifting in the Southeast Margin of Qinghai-Tibet Plateau

• 责任者：Lu Renqi (School of Energy Resources ; China University of Geosciences ; Beijing 100083 ; China) ; He Dengfa
• 刊名：Earth Science Frontiers
• 出版年：2010
• 卷期：17(5)
• 关键词：构造楔 ; tectonic wedges ; 隆起 ; uplifts ; 青藏高原 ; Qinghai-Tibetan Plateau ; 龙门山断裂带 ; Longmenshan Fault Zone
• 页码：p.93-105
• 图表：10 illus., 60 refs.
• 分类号：0300
• issnNo：ISSN1005-2321
• isbnNo：CN11-3370/P

In this paper, the fine interpretations of seismic profiles in the central Longmen Mountains have been accomplished with the application of fault-related folding geometry principles.  The studies found that there are multi-detachment layers with different structural deformation in the mountain front belts. The analysis indicated that they were formed during the Himalayan periods. Owing to the special location, the structural characteristics and the genesis, the study of the formation of the wedges could provide the constraints on the dynamical mechanism of uplifting in the southeast margin of the Qinghai-Tibetan Plateau.