CAJ | 학술논문

雅鲁藏布江结合带东段夹在南、北两条蛇绿混杂岩带之间的一套活动类型的上三叠统朗杰学（岩）群，许多地质工作者对其地层层序、沉积特征、变形变质、物质来源以及形成的构造环境进行过研究。作者在前人工作成果的基础上，综合对比了已往区调工作获得的实际资料，以（构造）岩石地层为基础，结合沉积古生物特征、变形特征以及区域大地构造背景，对该岩（群）作了进一步的研究。初步认为：朗杰学（岩）群地层层序自老至新为宋热（岩）组、江雄（岩）组和姐德秀（岩）组（章村岩组）；郎杰学（岩）群的构造样式为一“Ω”型两翼不对称的复式背斜构造。
아로장포강결합대동단협재남、북량조사록혼잡암대지간적일투활동류형적상삼첩통랑걸학（암）군，허다지질공작자대기지층층서、침적특정、변형변질、물질래원이급형성적구조배경진행과연구。작자재전인공작성과적기출상，종합대비료이왕구조공작획득적실제자료，이（구조）암석지층위기출，결합침적고생물특정、변형특정이급구역대지구조배경，대해암（군）작료진일보적연구。초보인위：랑걸학（암）군지층층서자로지신위송열（암）조、강웅（암）조화저덕수（암）조（장촌암조）；랑걸학（암）군적구조양식위일“Ω”형량익불대칭적복식배사구조。
Plentiful studies have been conducted in the last decades on the stratigraphic sequences,sedimentary characteristics,deformation and metamorphism,provenance and tectonic settings of the Upper Triassic Langjiexue Group(Complex)in the Renbu-Qusong stratigraphic subprovince in the eastern part of the Yarlung Zangbo suture zone,Xizang. The authors in this study present the redivision of the Langjiexue Group(Complex)on the basis of the existing data on the tectono-lithostratigraphy,palaeontology,deformation and tectonic settings,and contend that the Langjiexue Group( Complex)should be composed,from the base upwards,of the Songre,Jiangxiong and Jiedexiu(Zhangcun)Formations( Complex),and display the structural patterns of a " Ω"-type asymmetrical anticlinorium.