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雅砻江下游河谷下部松散沉积物的时代与变形的初步研究
Alternative TitlePRELIMINARY STUDY ON AGE AND DEFORMATION FOR CONSOLIDATED SEDIMENTS IN THE BASE OF THE VALLEY, THE LOWER REACH OF THE YALONG RIVER
陈富斌; 赵永涛
Corresponding Author陈富斌
1985
Source Publication地震地质
ISSN0253-4967
Volume7Issue:3Pages:33-41+83
Other Abstract 本文根据沉积环境分析和14C测龄结果,确定沿雅砻江下游河床分布的一套未成岩的河湖相地层的时代为晚更新世晚期—全新世早期,而不是长期以来归之于早更新世的昔格达组,建议称其为桐子林组;并通过该地层变形成因的分析,提出李明久-桐子林断裂带在全新世中期活动显著的认识。 
;  Tongzilin and Ertan etc.,are located in the lower reach of the Yalong River,a sequence of less dense sediments in the bottom of the valley named Xigeda Formation (Early Pleistocene) with a thickness of 70m.14C dating indicates an age ranging from 23000-10000 yrs for the lacustrine deposit,suggesting a time spanning Late Pleistocene and Early Holocene for the Tongzilin Formation.Tectonic deformation of the succession leads to a east-dipping sequences,the development of extension-torsion fault and compression fault,and a set of X-shaped jointa,suggesting that this area showed a tendency to uplift rapidly 
Keyword昔格达组 湖积层 雅砻江下游 松散沉积物 级阶 垂直断距 晚更新世晚期 断裂带 全新世中期 擦痕
Language中文
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/9610
Collection成都山地所知识仓储(2009年以前)
Affiliation中国科学院成都地理研究所
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
陈富斌,赵永涛. 雅砻江下游河谷下部松散沉积物的时代与变形的初步研究[J]. 地震地质,1985,7(3):33-41+83.
APA 陈富斌,&赵永涛.(1985).雅砻江下游河谷下部松散沉积物的时代与变形的初步研究.地震地质,7(3),33-41+83.
MLA 陈富斌,et al."雅砻江下游河谷下部松散沉积物的时代与变形的初步研究".地震地质 7.3(1985):33-41+83.
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