干旱区生态环境知识资源中心(Arid): 塔里木盆地腹地第四纪沉积物粒度特征及其沉积环境

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	塔里木盆地腹地第四纪沉积物粒度特征及其沉积环境
其他题名	Grain-size characteristics and sediment environment of Quaternary sediments in the central Tarim basin
	毕志伟; 杨振京; 徐建明; 宋淑红; 侯宏冰; 陈江
ISSN	1000-6060
出版年	2009
卷号	32 期号:3 页码:335-339
中文摘要	利用MS-2000型激光粒度仪及相关软件,对位于塔里木盆地腹地的塔中KT2号钻孔进行粒度测试与分析,绘制频率曲线图、概率累计曲线图等,结合其他测试数据、资料,进行沉积环境分析.结果表明塔里木盆地在早更新世以河湖相沉积为主,其晚期出现了风成相沉积;中更新世早期以洼地湖泊相沉积为主,但风成相沉积作用明显加强,至中更新世晚期,发展成为以风成相为主,经晚更新世到全新世,沙漠大规模形成,并逐步发展.气候总体由温暖湿润变为寒冷干旱.
英文摘要	Tazhong KT2 hole locates at hinterland of Tarim Basin, Xinjiang, with depth of 885.99m, revealed the Quaternary stratum. The test results were illustrated as protracted frequency graph, probability cumulative graph, and other datum with Mastersizer-2000 Laser Grain-size analyzer. The rock core is mainly made of silt sand, silt-fine sand, fine sand. A few coarse sand, multilayer claypan, average grain diameter are in the range of 2. 5 -6. 2 phi, the deposition environment was in comparative stabilization. Frequency graph and probability accumulative graph reflect borderlines at 130 m and 650 m, including three groups from end to top. The first group corresponds to d-Pleistocene, climate became cold and dry, rives transformed to lake and marsh, basin settled rapidly, alluvi-um and diluvium developed broadly. The second groups corresponds to early Pleistocene, sediment mainly shows as river-lake phase, alluvium and diluvium appear by turns. Climate change frequently, cold and dry, change of tem-perature has evidence gyre character, Aeolian product appear at late, show the desert came into being. The third group corresponds to middle-late Pleistocene. At initial stage, it mainly includes rive-lake phase, then develop to eolian form, desert formed completely and started to expand. According to rock stratum, age measure datum and pollen information, Tarim Basin was mainly at river-lake sediment phase in early Pleistocene, later appeared eolian-form phase deposition. At the beginning of middle-Pleistocene, marsh and lake phase deposition dominate the form, but eolian-form enforced distinctly, to later middle-Pleistocene, eolian-form phase deposition taked the main form from later Pleistocene to Pleistocene, desert formed cosmically and developed gradually. Climate changed from warm and wetness to cold and dry generally.
中文关键词	粒度 ; 沉积环境 ; 第四纪 ; 塔里木盆地腹地
英文关键词	grain-size sedimentary environmen Quaternary center of the Tarim basin
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:3761614
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/223547
作者单位	中国地质科学院水文地质环境地质研究所, 石家庄, 河北 050061, 中国
推荐引用方式 GB/T 7714	毕志伟,杨振京,徐建明,等. 塔里木盆地腹地第四纪沉积物粒度特征及其沉积环境[J],2009,32(3):335-339.
APA	毕志伟,杨振京,徐建明,宋淑红,侯宏冰,&陈江.(2009).塔里木盆地腹地第四纪沉积物粒度特征及其沉积环境.,32(3),335-339.
MLA	毕志伟,et al."塔里木盆地腹地第四纪沉积物粒度特征及其沉积环境".32.3(2009):335-339.