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东营凹陷北部陡坡带深层砂砾岩沉积特征及控制因素——以丰深1地区为例

发表时间:2008-01-15  浏览量:1967  下载量:553
全部作者: 夏景生,高祥成
作者单位: 中国石油大学(华东)地球资源与信息学院;胜利油田地质科学研究院
摘 要: 通过对东营凹陷箕状断陷盆地陡坡带丰深1和丰深8井的岩心的精细观察和描述,结合地震资料的分析发现本区广泛发育了不同时期的砂砾岩扇体,主要类型有:冲积扇、扇三角洲和近岸水下扇等。这些砂砾岩扇体伴随着断裂活动而产生,具有重力流性质,其岩性以分选较差的粗碎屑为主,夹在湖相暗色泥岩中。在地震剖面上,这些砂砾岩扇体呈现出独特的外形特征及反射结构,它们的形成受构造活动、水动力条件等因素的控制。
关 键 词: 矿物学、岩石学、矿床学;砂砾岩体沉积特征;地质综合分析法;陡坡带;东营凹陷
Title: Sedimental features and controlling factors of glutenite of steep slope, Dongying sag, Shandong, China——Example for Fengshen-1 area
Author: XIA Jingsheng, GAO Xiangcheng
Organization: Faculty of Geo-Resources and Information, China University of Petroleum;Research institute of Geological Science, Sheng Li Oil Filed
Abstract: Many diachronous glutenite fans were found in actic region in the north of the Dongying sag by observing and describing the drill cores of Fengshen-1 and Fengshen-8 well, and researching of seismic cross-section. These kinds of glutenite include alluvial fans、fans delta and nearshore subaqueous fans mainly and so on. The developing of this deposit accompany with badly faulting. This kind of glutenite has the feature of density current and contains much assorted coarse fragment. These glutenite fans developed in dark peat of lake facies and had peculiar resemblance and reflection configuration in seismic cross-section. The development of these glutenite were controlled by tectonic movement and hydrodynamic force.
Key words: mineralogy, petrology, Mineral Deposits; sedimental features of glutenite; multidisciplinary analysis of geology; actic region; Dongying sag
发表期数: 2008年5月第1期
引用格式: 夏景生,高祥成. 东营凹陷北部陡坡带深层砂砾岩沉积特征及控制因素——以丰深1地区为例[J]. 中国科技论文在线精品论文,2008,1(1):91-97.
 
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