| 川西德格—巴塘一带的晚三叠世地层 |
| |
| 引用本文： | 李廷栋,郑宁,丁伟翠,刘勇,郑洪伟,王军.川西德格—巴塘一带的晚三叠世地层[J].地质通报,2012,31(7):1017-1023. |
| |
| 作者姓名： | 李廷栋 郑宁 丁伟翠 刘勇 郑洪伟 王军 |
| |
| 作者单位： | 1. 中国地质科学院地质研究所,北京100037;国土资源部咨询研究中心,北京100035
2. 中国地质科学院地质研究所,北京,100037 |
| |
| 基金项目： | 中国地质调查局项目《中国地质构造区划与区域地质调查综合集成》，《西太平洋大陆边缘深部过程与成矿作用》 |
| |
| 摘 要： | 四川西部金沙江畔德格—巴塘一带出露一套低级变质的火山-沉积岩系,含有丰富的双壳类、腕足类、头足类,特别是六射珊瑚等化石。由于构造复杂,过去对这套地层形成时期的构造环境和地层分层曾有不同认识。根据所含古生物化石和同邻区对比,将这套地层的时代划归晚三叠世,并自老而新划分为3个组:打马洞组、曲嘎寺组与图姆沟组。其中打马洞组为新建立的地层单位。
|
| 关 键 词： | 川西 德格—巴塘地区 晚三叠世 六射珊瑚 |
The Upper Triassic strata in Dege-Batang area, western Sichuan Province |
| |
| LI Ting-dong
,
ZHENG Ning
,
DING Wei-cui
,
LIU Yong
,
ZHENG Hong-wei
,
WANG Jun.The Upper Triassic strata in Dege-Batang area, western Sichuan Province[J].Geologcal Bulletin OF China,2012,31(7):1017-1023. |
| |
| Authors: | LI Ting-dong ZHENG Ning DING Wei-cui LIU Yong ZHENG Hong-wei WANG Jun |
| |
| Institution: | 1.Institute of Geology,Chinese Academy of Geological Sciences,Beijing 100037,China; 2.Consulting Research Center,MLR,Beijing 100035,China |
| |
| Abstract: | In western Sichuan Province,a low-grade metamorphic volcanic-sedimentary rock series has been discovered in Dege-Batang area on the bank of the Jinsha River.This rock series contains abundant fossils,including fossils of bivalvia,brachia,cephalopoda and Hexacoralla.Due to its complex structure,scientists have been holding diverse opinions on the tectonic forming conditions and stratification of this rock series.According to a study of paleontologic fossils in this rock series and a comparison between this rock series and rocks of the adjacent areas,the authors agree with most scholars′ opinions and define its stratigraphic period as Late-Triassic.The rock series is divided into 3 formations,namely Damadong Formation,Qugasi Formation and Tumugou Formation,in which the Damadong Formation is a stratigraphic unit newly defined by the authors. |
| |
| Keywords: | western Sichuan Province Dege-Batang area Late Triassic Hexacoralla |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《地质通报》浏览原始摘要信息 |
| 点击此处可从《地质通报》下载免费的PDF全文 |
|
