干旱区生态环境知识资源中心(Arid): 干旱气候环境下季节性河流沉积特征以库车河剖面下白垩统为例

Arid

	干旱气候环境下季节性河流沉积特征以库车河剖面下白垩统为例
其他题名	Arid Climate Seasonal Rivers Deposition: A case of Lower Cretaceous in Kuche river outcrop
	高志勇 1; 冯佳睿 1; 周川闽 1; 崔京钢 1; 李小陪 2; 赵雪松 2; 郭美丽 2; 吴昊 2
来源期刊	沉积学报
ISSN	1000-0550
出版年	2014
卷号	32 期号:6 页码:1060-1071
中文摘要	通过对库车河剖面下白垩统巴西改组古近系库姆格列木群底部的沉积露头实测,分析砂岩岩性组合、沉积构造特征、砾岩特征及沉积古环境,并结合现代天山南北季节性河流沉积特征,认为干旱气候条件下发育的季节性河流及季节性河流三角洲是白垩纪库车坳陷发育的重要沉积体系。下白垩统巴什基奇克组砂岩特征与现今广泛发育的季节性河流沉积特征极为相似,既有较为典型的河流相正韵律砂体大面积沉积,河道底部内碎屑泥砾与厚层块状的大型交错层理等砂岩,又显示出高能细砂岩和高能粉砂岩沉积,并具有较低的成分成熟度和较高的结构成熟度基本特征。在此基础上,建立了库车河剖面下白垩统巴西改组巴什基奇克组沉积相模式:巴西改组沉积时期,库车坳陷发育面积较大的宽浅型湖泊,天山前发育的季节性河流进入湖泊后形成季节性河流三角洲;巴什基奇克组沉积时期,古天山前出现了多个小型湖泊,古天山山前发育大量的季节性辫状河与多个小型季节性辫状三角洲沉积。
英文摘要	Through the restructuring of the Kuche river section of Lower Cretaceous-Paleogene Kumugeliemu group sedimentary outcrop observation, analysis of sandstone lithology combination, sedimentary structure, gravel characteristics and sedimentary environment, combined with the sedimentary features of seasonal river in Tianshan north and south. It is an important depositional system that the seasonal rivers and seasonal river delta developed under arid climatic conditions in Cretaceous of Kuche depression. The seasonal river sedimentary characteristics of the lower Cretaceous Bashijiqike Formation and the extensive development is very similar, both typical fluvial facies sedimentary rhythm sand body is widespread, the river bottom mud gravel and detritus thick massive large-scale cross bedding sandstone, but also show a high-energy fine sandstones and silty sandstone, with higher structural maturity and lower compositional maturity. On this basis, the establishment of the Kuche river section of Lower Cretaceous Basi Group restructuring of sedimentary facies model. In Baxigai Formation sedimentary period, development area wide shallow lakes larger in Kuche depression, the development of seasonal rivers into the lakes formed seasonal rivers Delta. In Bashijiqike Formation sedimentary period, a number of small lakes emergence in front of the ancient Tianshan Mountains, ancient Tianshan Piedmont seasonal braided river and a large number of multiple seasonal small braided delta were deposited.
中文关键词	干旱气候 ; 季节性河流 ; 季节性河流三角洲 ; 库车河剖面 ; 下白垩统 ; 巴什基奇克组
英文关键词	arid climate seasonal rivers seasonal river delta Kuche river outcrop Lower Cretaceous Bashijiqik Formation
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENERGY FUELS
WOS研究方向	Energy & Fuels
CSCD记录号	CSCD:5321242
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/230888
作者单位	1.中国石油勘探开发研究院实验研究中心, 提高石油采收率国家重点实验室, 北京 100083, 中国; 2.(北京)中国地质大学地球科学与资源学院, 北京 100083, 中国
推荐引用方式 GB/T 7714	高志勇,冯佳睿,周川闽,等. 干旱气候环境下季节性河流沉积特征以库车河剖面下白垩统为例[J],2014,32(6):1060-1071.
APA	高志勇.,冯佳睿.,周川闽.,崔京钢.,李小陪.,...&吴昊.(2014).干旱气候环境下季节性河流沉积特征以库车河剖面下白垩统为例.沉积学报,32(6),1060-1071.
MLA	高志勇,et al."干旱气候环境下季节性河流沉积特征以库车河剖面下白垩统为例".沉积学报 32.6(2014):1060-1071.