干旱区生态环境知识资源中心(Arid): 鄂尔多斯早白垩世自流水盆地沉积特征岩性分布与盆地演化

Arid

	鄂尔多斯早白垩世自流水盆地沉积特征岩性分布与盆地演化
其他题名	Sedimentary character, lithological distribution and evolvement pattern of cretaceous Artesian Basin in Ordos, China
	杨友运 1; 侯光才 1; 王治华 2
ISSN	0455-2059
出版年	2006
卷号	42 期号:3 页码:25-31
中文摘要	从盆地边界、盆内结构、沉积环境背景以及沉积物特征人手，探讨了盆地演化与含水岩组分布规律、含水岩组沉积相与含水性之间的关系．结果发现早白垩世时，盆地以南北向为轴、东西两翼非均衡沉降，东缓西陡，结构极不对称；盆内发育的洛河、环河华池和罗汉洞3个主要含水岩组，均受盆地构造演化和沉积相控制，其中洛河组分布最广，环河华池组以及罗汉洞组比较局限．沉积环境变化中沿盆缘以冲积扇、河流相和三角洲平原分流河道相砂砾岩和砂岩沉积为主，盆内由风成沙漠相、三角洲前缘相和湖泊相砂岩和泥岩组成．洛河组风成沙漠相含水砂岩，产状稳定、覆盖面广、岩性组分和结构成熟度高、孔渗性能好、有害可溶组分含量低，顶底板及边界隔挡岩性组合匹配合理，是自流水盆地最理想的含水层．
英文摘要	On the basis of its boundary feature, structure, sedimentary environment and sediment feature, relations between basin evolvement and distributing pattern of water-bearing formation, sedimentary facies of water-bearing formation and aquosity are discussed in this article. It is shown that, during the early cretaceous perild, the axis of the basin extended along SN way, its disequilibrium sedimentation appeared in EW way and its configuration dissymmetricaily tended to be flat in the east and steep in the west. Three main water-bearing formation of Luohe formation, Huanhe-Huachi formation and Luohandong formation were controlled by structure evolvement and sedimentary facies： Luohe formation mostly developed and was distributed extensively; Huanhe-Huachi formation and Luohandong formation were distributed locally. Along with changes of sedimentary environments, alluvial fans, rive facies and distributary channel of delta plain were mostly distributed along the basin boundaries and theirs lithologies were mostly glutenites and sandstones. Thus, wind-bearing desert facies, delta front and lacustrin facies were distributed in the center and theirs lithologies were composed of sandstones and mudstones. Among all sedimentary facies, windbearing desert facies of sandstones of Luohe formation were the .best of water-bearing bed in the artesian basin, because it not only showed characteristics of stabile occurrence, wide distribution area, high maturation in lithologic component and structure, optimum pore ratio and permeability and low content of heterobase and soluble component, but had reasonably spatial matching relation of roof and floor lithology and boundary isolated barrier lithology.
中文关键词	鄂尔多斯 ; 白垩系 ; 自流水盆地 ; 沉积相 ; 岩性 ; 盆地演化
英文关键词	Ordos Cretaceous artesian basin sedimentary facies lithology basin evolvement
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:2446210
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/219912
作者单位	1.西安石油大学油气资源学院, 西安, 陕西 710065, 中国; 2.延长油矿管理局靖边钻采公司, 靖边, 陕西 718500, 中国
推荐引用方式 GB/T 7714	杨友运,侯光才,王治华. 鄂尔多斯早白垩世自流水盆地沉积特征岩性分布与盆地演化[J],2006,42(3):25-31.
APA	杨友运,侯光才,&王治华.(2006).鄂尔多斯早白垩世自流水盆地沉积特征岩性分布与盆地演化.,42(3),25-31.
MLA	杨友运,et al."鄂尔多斯早白垩世自流水盆地沉积特征岩性分布与盆地演化".42.3(2006):25-31.