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四川二郎山地区构造变形特征及成因探讨
Discussions on tectonic deformation properties and genesis of Erlang Mountain area in Sichuan
【摘要】 二郎山地区横跨康滇地轴、龙门山造山带2个二级大地构造单元,地处3个不同构造带的交汇部位,区内地质背景复杂,褶皱、断裂比较发育。通过野外地质调查、物化探技术及遥感测量技术等地质填图手段,将研究区按沉积建造、变形型式、地质演化等方面将其划分为东部沉积盖层变形岩块和西部基底变形岩块2个构造单元,并进一步划分为8个次级单元。阐明该地区的构造变形特征及成因,不仅有利于更好地认识研究区及周边的形成与演化,而且能够更好地指导区域内的地质研究工作。
【Abstract】 Erlang Mountain area stretched across the two secondary tectonic elements of Kangdian Axis and Longmen Orogenic Belt, and were located in three different tectonic zone intersections, folds and faults were developed greatly in those complexed geological background areas. Through the measures of field geological survey, geophysical and geochemical exploration technology and remote sensing technology, the authors classified the eastern sedimentary cover deformation rock mass and western basal deformation rock mass into two tectonic units and eight secondary units in accordance with sedimentary formation, deformation modes and geological evolution. The authors clarified the tectonic deformation characteristics and causes of the region for better understandings of the study area and the surrounding formation and evolution.
【Key words】 Tectonic deformation; Deformation properties; Genesis discussions; Erlang Mountain area; Sichuan;
- 【文献出处】 地质学刊 ,Journal of Geology , 编辑部邮箱 ,2013年01期
- 【分类号】P542
- 【被引频次】10
- 【下载频次】116