干旱区生态环境知识资源中心(Arid): 江北砾岩沉积特征及形成环境研究

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	江北砾岩沉积特征及形成环境研究
其他题名	Research of Sedimental Characteristics and Diagenetic Environment of Jiangbei Conglomerate
	何多兴; 谢世友; 邹晓红; 李俊云; 夏凯生
ISSN	1000-5471
出版年	2006
卷号	31 期号:1 页码:142-146
中文摘要	采用14C、U系法、ESR等定年技术、基质碳同位素分析等多种手段对江北砾岩沉积特征和成因进行了研究,发现:晚更新世晚期全球总的干冷气候下的相对暖湿期是江北砾岩沉积的的主要时期,而胶结成岩则为相对较晚时期的干冷气候条件下,由于蒸发作用钙过饱和或外来富钙水的加入胶结成岩.
英文摘要	Jiangbei conglomerate is a kind of allothigenic supergene cemented rock that widely spreads in lower terrace of Quaternary sediment along the river in Sichuan basin and it＇s adjacent area, and consists of conglomerate and sandstone. Jiangbei conglomerate has its own characteristic different from other river sediment, namely it cemented to solid rock on earth＇s surface and only spread on the lower terrace. But there are different opinions about its diagenetic reasons. This paper studes its diagenetic environment reasons by carbon 14, ESR, U-Th dating method and delta 13^C analyse its cemented material on the basis of the research clone before. The authors draw a conclusion that in the general arid and cold climate of earth during the last stage of late Pleistocene the relative warm and wet period is the major sediment stage of Jiang-bei conglomerate, while under arid and cold climate during the relative late period, the evaporation action on the water super saturated or rich in Ca^2＋ to the cement process of Jiangbei conglomerate.
中文关键词	沉积特征 ; 成岩环境 ; 江北砾岩
英文关键词	14C U-Th ESR delta13C 14 ^C U-Th ESR delta13^ C sedimental characteristics diagenetic environment Jiangbei conglomerate
语种	中文
国家	中国
收录类别	CSCD
WOS类目	GEOLOGY
WOS研究方向	Geology
CSCD记录号	CSCD:2668289
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/220295
作者单位	西南大学,资源环境科学学院, 重庆 400715, 中国
推荐引用方式 GB/T 7714	何多兴,谢世友,邹晓红,等. 江北砾岩沉积特征及形成环境研究[J],2006,31(1):142-146.
APA	何多兴,谢世友,邹晓红,李俊云,&夏凯生.(2006).江北砾岩沉积特征及形成环境研究.,31(1),142-146.
MLA	何多兴,et al."江北砾岩沉积特征及形成环境研究".31.1(2006):142-146.