歧口凹陷古近纪东营期古物源体系重建与应用  

Reconstruction and Application of the Paleogene Provenance System of the Dongying Formation in Qikou Depression

作　　者：王华[1] 白云风[1] 黄传炎[1] 严德天[1] 刘彦博[1] 陈思[1] 向雪梅[1] 廖计华[1] 夏存银[1] 赵淑娥[1] 

机构地区：[1]中国地质大学资源学院构造与油气资源教育部重点实验室,湖北武汉430074

出　　处：《地球科学（中国地质大学学报）》2009年第3期448-456,共9页Earth Science-Journal of China University of Geosciences

基　　金：国家自然科学基金(No.40872077);湖北省自然科学重点基金(No.2008CDA098)

摘　　要：以沉积盆地分析、层序地层研究和油气勘探实践中急待解决的古物源体系分析为切入点,以歧口凹陷东营组研究为例,阐述了古物源体系研究的途径、方法与技术路线;初步总结出应用轻-重矿物时空配置关系、地震前积反射结构特征、古地貌恢复与沟谷展布特征、盆地内部骨架砂体形态与时空配置以及盆地边缘及内部层序界面上大型下切谷的空间展布特征,即"五位合一"法来判断沉积盆地的古物源体系.该分析方法可为同领域的研究提供借鉴作用.The paleoprovenance system analysis is critical in terms of present sedimentary basin analysis, sequence stratigraphy study, and petroleum exploration practice. In this paper, we present a preliminarily summary of applying the ＂five-in-one＂ method to study provenace system of the Dongying Formation in the Qikou depression. The so-called ＂five-in-one＂ method is a compositive analysis of light-heavy minerals, seismic progradational reflection structure features, paleogeomorphy and gully expansion features, skeleton sand body forms within the basin and the time-space expansion and matching rules analysis, and basin margin and the spatial expansion features analysis of large-scale incised valley developed in its internal sequence boundary. This method undoubtedly provides a reference for the researches of other basins within the same field. However, we know that provenaee analysis of sedimentary basin is a complicated job. With the development of science and technology, and the increase of basin data obtained, it will apply on the field together with more effective methods and technologies. It will also further ap- proach the real status of provenace system, and provide better service for petroleum exploration.

关 键 词：歧口凹陷 东营组 古物源体系 

分 类 号：P618.13[天文地球—矿床学]