干旱区生态环境知识资源中心(Arid): 江陵凹陷梅槐桥地区第三系新沟咀组下段沉积相及砂体分布研究

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	江陵凹陷梅槐桥地区第三系新沟咀组下段沉积相及砂体分布研究
其他题名	RESEARCH OF SEDIMENTARY FACIES OF LOWER Ex IN MEIHUAIQIAO AREA,JIANGLING SAG
	易积正
来源期刊	矿物岩石
ISSN	1001-6872
出版年	2010
卷号	30 期号:3 页码:77-82
中文摘要	通过岩心,测井,录井,粒度及薄片等分析资料对梅槐桥地区第三系新下段沉积相进行研究:认为该区新下段沉积期主要发育三角洲前缘亚相,相带的变化受构造和气候双重因素的影响,尤其是气候因素,新下段Ⅲ油组沉积期,气候表现为干旱--半干旱,泥隔层沉积期,气候变现为半干旱--半湿润,Ⅱ油组沉积期,气候变现为湿润性气候,Ⅰ油组沉积期,气候表现为半湿润--半干旱,沉积总体特征为浅湖--湖进--湖退--浅湖的沉积演变过程.砂体主要发育在Ⅱ油组沉积期,类型多样:水下分流河道砂体,河口坝砂体,天然堤砂体,决口扇砂体,同生作用形成的砂体较发育.气候与构造活动有较好的正相关性,物源供给对小规模的构造活动造成的地貌差得以及时充填,致使当时的古地貌变化不大,且同生构造较明显.因此,砂体分布区带,即可作为该区油气勘探的主要目标
英文摘要	Based on integrative data of rock cores, well logging, borehole lag, granularity and flakes, the features of sedimentary facies of the Lower Ex in the Meihuaiqiao area is studied. The result shows that the types of sedimentary facies mainly belong to the dalta front intrafacies, and the change of facies was influenced by such factors as structure and climate, especially the latter one. The climate of Lower Ex Ⅲ is characteristic of arid to semiarid condition, the lower Ex Ng shows semiarid to sunhumid condition, and lower ExⅡ the moist condition, and the Lower ExⅠsunhumid to semiarid condition. The characteristics of sedimentary facies show the variation process of the shallow lake-the transgression-regression process-the shallow lake. The sand bodies mainly occur in the Lower ExⅡ, which belongs to distributary channel sand bodies, mouth bar sand bodies, natural barrier sand bodies, splay sand bodies. Because the climate is correlated with the structural activity, the small scale geographic change caused by structural movement is filled by sediments, leading to little variation of paleo-geomorphology. Therefore, the chief target of oil and gas exploitation in the future is to look for the above mentioned distribution area of sandstone
中文关键词	梅槐桥向斜 ; 新下段 ; 沉积相 ; 气候 ; 构造运动 ; 砂体
英文关键词	Meihuaiqiao syncline Lower Ex sedimentary facies climate tectonic movement sand body
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:4037277
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/225341
作者单位	中国地质大学(武汉)资源学院, 武汉, 湖北 430074, 中国
推荐引用方式 GB/T 7714	易积正. 江陵凹陷梅槐桥地区第三系新沟咀组下段沉积相及砂体分布研究[J],2010,30(3):77-82.
APA	易积正.(2010).江陵凹陷梅槐桥地区第三系新沟咀组下段沉积相及砂体分布研究.矿物岩石,30(3),77-82.
MLA	易积正."江陵凹陷梅槐桥地区第三系新沟咀组下段沉积相及砂体分布研究".矿物岩石 30.3(2010):77-82.

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