Sedimentary formation and tectonic cycle of the Jurassic Northeastern Jiangxi continental basin
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摘要: 阐述下侏罗统林山组、中侏罗统罗坳组、上侏罗统至下白垩统武夷群的建造类型及建造序列 ,总结了侏罗纪陆盆的发展阶段。本区中生代构造运动划分为 3个亚旋回 :印支亚旋回 (分为Ⅰ幕金子运动 ,Ⅱ幕南象运动 )、早期燕山亚旋回、晚期燕山亚旋回 ;4个构造幕 ,尤以燕山Ⅲ幕最为剧烈 ,使本区地势由东升西降转变为西升东降。Abstract: This paper deals with the formation types and sequence of the Lower Jurassic Linshan Formation, Middle Jurassic Luo'ao Formation and Upper Jurassic to Lower Cretaceous Wuyi Group and summarizes the development stages of the Jurassic continental basin. The tectonic movements in northeastern Jiangxi may be divided into three subcycles, i.e. the Indosinian subcycle (including the Jinzi movement of phase I and Nanxiang movement of phase II), early Yanshanian subcycle and late Yanshanian subcycle, and four tectonic phases, of which phase III of the Yanshanian was most intense, causing the relief in the study area which rises in the east and descends in the west to rise in the west and descend in the east.
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