干旱区生态环境知识资源中心(Arid): 鄂尔多斯盆地白垩系洛河组至环河华池组沉积相特征研究

Arid

	鄂尔多斯盆地白垩系洛河组至环河华池组沉积相特征研究
其他题名	SEDIMENTARY FACIES OF THE CRETACEOUS LUOHE AND HUANHE-HUACHI FORMATIONS IN THE ORDOS BASIN
	魏斌 1; 张忠义 2; 杨友运 3
ISSN	0253-4959
出版年	2006
卷号	30 期号:4 页码:367-372
中文摘要	通过研究构造背景、野外露头、岩性组合、沉积构造、古生物特征和测井曲线特征，分析和总结鄂尔多斯盆地白垩系洛河组至环河华池组沉积相、相带分布范围和沉积特征。洛河组主要沉积了冲积扇相、风成沉积相、辫状河相和沙漠相；而在环河华池组主要沉积了湖相、三角洲相、曲流河相及风成砂岩夹层。平面上沉积相带的变化规律性较强，由盆地边缘的冲积相、冲积-河流相砾岩向盆内渐变为河流相-滨浅湖-半深湖相泥岩。沉积特征受构造运动影响和沉积相带控制，洛河组是从山缘向盆地内砂岩厚度迅速变薄、尖灭；环河华池组岩性变化表现为北粗南细、东粗西细，在北部砂体呈现东薄西厚，东北向西南增厚，在南部砂体呈近南北向展布，东薄西厚，南薄北厚。
英文摘要	The sedimentary facies and facies distribution of the Cretaceous Luohe and Huanhe-Huachi formations in the Ordos Basin are analyzed using regional structure, outcrop, drill core, lithological, sedimentary, palaeontological, and well log data. Major sedimentary facies in the Luohe Formation include alluvial fans facies, eolian facies, braided fluvial facies, and desert facies. Major sedimentary facies in the Huanhe-Huachi Formation include lacustrine facies, delta facies, meandering fluvial facies, and interbedded eolian sandstone facies. Alluvial facies and alluvial-fluvial conglomerate facies are found mostly in the margin of the Ordos Basin, whereas fluvial and lacustrine mudstone facies occur in the central Ordos Basin. This spatial pattern of facies distribution is controlled by the configuration of the basin. Sandstone beds of the Luohe Formation thin from the margin to the center of the basin. Sediments in the HuanheHuachi Formation coarsen to the north and to the east. In the northern part of the basin, sandstone beds thin to the east and to the northeast. In the southern part of the basin, sandstone bodies extend in the north-south direction and thin to the east and to the south.
中文关键词	鄂尔多斯盆地 ; 白垩系 ; 测井曲线 ; 沉积相 ; 相带
英文关键词	Ordos Basin Cretaceous well log sedimentary facies facies belt
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:2609613
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/219493
作者单位	1.西北大学地质系, 西安, 陕西 710069, 中国; 2.长庆油田公司勘探开发研究院, 西安, 陕西 710021, 中国; 3.西安石油大学资源工程系, 西安, 陕西 710065, 中国
推荐引用方式 GB/T 7714	魏斌,张忠义,杨友运. 鄂尔多斯盆地白垩系洛河组至环河华池组沉积相特征研究[J],2006,30(4):367-372.
APA	魏斌,张忠义,&杨友运.(2006).鄂尔多斯盆地白垩系洛河组至环河华池组沉积相特征研究.,30(4),367-372.
MLA	魏斌,et al."鄂尔多斯盆地白垩系洛河组至环河华池组沉积相特征研究".30.4(2006):367-372.