地质力学学报2018,Vol.24Issue(2):145-156,12.DOI:10.12090/j.issn.1006-6616.2018.24.02.016
大陆逃逸构造研究现状
ADVANCES IN CONTINENTAL SCAPE STRUCTURES
摘要
Abstract
The continental scape structure, as one of the important structural styles to accommodate intracontinental deformation, is of great significance to understand intracontinental deformation, strain partitioning and formation mechanism during tectonic evolution of the continent.Based on the previous continental escape structures defined in structural belt, this paper synthesizes the formation mechanism, tectonic models and methods of continental scape structures.The structure is generally formed due to the limitation of conjugate V-shaped structure at the end stage of continental collision,and it plays a key role in coordinating the transformation of stress regime.Mechanically, the formation of V-shaped fracture zones coincides with the paired general-shear model and the preexisting structure activity criterion according to the Byerlee law and the Coulomb-Mohr fracture criterion.The escape models essentially include lateral escape and oblique extrusion.Structural analysis is essentially necessary in the definition of an escape structure, and tectonic modeling is a reliable tool to reconstruct and understand tectonic processes of continental lateral extrusion.关键词
大陆岩石圈/逃逸构造/力学机制/构造模型/陆内变形Key words
continental lithosphere/scape structures/mechanical mechanism/structural model/intra-continental deformation分类
天文与地球科学引用本文复制引用
张宇,施炜..大陆逃逸构造研究现状[J].地质力学学报,2018,24(2):145-156,12.基金项目
国家重点研发计划项目(2017YFC0601402) (2017YFC0601402)
国家自然科学基金项目(41672203) (41672203)