干旱区生态环境知识资源中心(Arid): 萨拉乌苏河流域第四系岩石地层及其时间界限

Arid

	萨拉乌苏河流域第四系岩石地层及其时间界限
其他题名	The Quaternary Lithostrata in Salawusu River Valley and Their Geochronology
	李保生 1; 靳鹤龄 2; 祝一志 3; 董光荣 2; 温小浩 1
来源期刊	沉积学报
ISSN	1000-0550
出版年	2004
卷号	22 期号:4 页码:676-682
中文摘要	根据对位于鄂尔多斯高原毛乌素沙漠东南部边缘萨拉乌苏河流域的米浪沟湾剖面岩石地层划分并结合年代测试结果,提出了如下一些看法:1.以组为代表的岩石地层单元的形成时间为:离石组>150000a B. P.、萨拉乌苏组150000-75000a B. P.、城川组75000-10000a B. P.、大沟湾组-滴哨沟湾组10000-1000a B. P.、范家沟湾组1000a B. P.-现代.2.以上岩石单元与黄土高原相同时期层系具有较好的对比关系:离石组萨拉乌苏组、萨拉乌苏组城川组和城川组大沟湾组在地质时代上依次与L2S1(时限为140000 a B. P.)、 S1L1(时限为80000 a B. P.)和L1S0(时限为11000-10000 a B. P.)大体是等时的.3.如以过去全球变化而论,则目前已经可以确切地将米浪沟湾剖面诸岩石单元与深海和大陆冰川最近地质时期的若干氧同位素阶段进行对比,以"()"表示为:离石组()MIS6、萨拉乌苏组()MIS5、城川组()MIS2～ MIS4、大沟湾组+滴哨沟湾组+范家沟湾组()MIS1.显然,这一对比关系清楚地说明,我国沙漠万年时间尺度环境演变,与黄土的研究结果一样,在很大程度上受到北半球冰期间冰期气候波动的影响.据此,可以按气候地层进行划分,将离石组、萨拉乌苏组、城川组、大沟湾组+滴哨沟湾组+范家沟湾组的时代分别置于里斯冰期、里斯-玉木间冰期(末次间冰期)、玉木冰期(末次冰期)和冰后期.
英文摘要	Based on the lithostratigraphical subdivision with reference to the chronological data in the Milanggouwan section located at Salawusu River Valley of the southeastern margin of Mu Us Desert, Ordos Plateau, China, some i-deas have been put forward in the paper; The sedimentary ages of the lithoslraligraphical units as indicated by formations in the section are that Lishi Fonnalion was formed at > 150000a B. P. , Salawusu Formatio 150000-75000a B. P. , Chengchuan Formation 75000 - 10000a B. P. , Dagouwan and Dishaogouwan Formations 10000-l000a B. P. and Fanjiagouwan Formation 1000a B. P. lo present. Geochronologically, the above-mentioned lithosti-atigraphical units can be well correla ted with those in the Lo- ess Plateau, China. Lishi FormationSalawusu Formation, Salawusu FormationChengchuan Formation and Cheng- chuan FormationDagouwan and Dishaogouwan and Fanjiagouwaii Formations correspond in succession to L_2S, (the time limit is 140000 a B. P. ) , S_1L_1 (80000 a B. P. ) and L_1S_0( 11000-10000 a B. P. ). In light of the pasl global variation, the lithostratigraphical units, at present, can assuredly be compared with the recent several oxygen - isotop stages in the deep sea and continental glacier regions, which are showed by "<=> " as; Lishi Formation <=> MIS6, Salawusu Formation <=> MIS5, Chengchuan Formation <=> MIS2 ~ MIS4, Dagouwan, Dishaogouwan and Fanjiagouwan Formations <=> MIS1. The correlative relation clearly indicates that the environmental evolution in > 10000a scale in Chinese desert, like the Chinese loess, were aflected to a great extent by the climatic fluctuations between glacial and interglacial periods in the Northern Hemisphere. According to climate stratigraphy, hereby , the Formations of Lishi, Salawusu, Chengchuan, Dagouwan and Dishaogouwan and Fanjiagouwan may be re-garded as Riss Glacial Period, Riss Wurm Interglacial Period (Last Interglacial Period) , Wurm Glacial Period (Last Glacial Period) and Post Glacial Period.
中文关键词	萨拉乌苏河流域 ; 岩石地层单元 ; 时间界限 ; 地层对比
英文关键词	Salawusu River Valley lithostratigraphical units time limits stratigraphical correlation
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:1795865
来源机构	中国科学院西北生态环境资源研究院
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/204839
作者单位	1.华南师范大学地理系, 广州, 广东 510631, 中国; 2.中国科学院寒区旱区环境与工程研究所, 兰州, 甘肃 730000, 中国; 3.中国科学院地球环境研究所, 黄土与第四纪地质国家重点实验室, 西安, 陕西 710061, 中国
推荐引用方式 GB/T 7714	李保生,靳鹤龄,祝一志,等. 萨拉乌苏河流域第四系岩石地层及其时间界限[J]. 中国科学院西北生态环境资源研究院,2004,22(4):676-682.
APA	李保生,靳鹤龄,祝一志,董光荣,&温小浩.(2004).萨拉乌苏河流域第四系岩石地层及其时间界限.沉积学报,22(4),676-682.
MLA	李保生,et al."萨拉乌苏河流域第四系岩石地层及其时间界限".沉积学报 22.4(2004):676-682.