上海国土资源2024，Vol.45Issue(2)：125-131,7.DOI:10.3969/j.issn.2095-1329.2024.02.023
东海盆地西湖凹陷基底时空演化特征再认识及勘探意义
Reunderstanding of temporal and spatial evolution characteristics of the basement of Xihu Depression in East China Sea Basin and its exploration significance
摘要
Abstract
In the middle and western part of Xihu Depression,East China Sea Basin,many wells have encountered thick basement volcanic rocks,it shows the great potential of buried hill exploration.But for a long time,the development stage of basement volcanic rocks is not clear,the basement formation age and stratigraphic sequence are not clear,which restricts the early structural evolution of Xihu Depression and the exploration potential analysis of buried-hill reservoir.This time,by means of petrology,geochemistry,structural geology,geophysics and other multidisciplinary methods,a comprehensive study and evaluation of the bedrock in the central and western part of Xihu Depression in the East China Sea Basin is carried out to determine the formation age,rock types and stratigraphic sequences of the basement of the Xihu Depression,summarize the new understanding of temporal and spatial evolution characteristics of basement.New understanding of temporal and spatial evolution of basement,which is helpful to clarify the division of the early tectonic evolution stages of the Xihu Depression and the lithology distribution of the buried hills in the basin.It indicates the favorable distribution area of basement buried hill reservoir of Xihu Depression,provides the direction for the exploration of buried hill in Xihu Depression.关键词
西湖凹陷/地层时代/岩石学/地层序列/构造演化Key words
Xihu Depression/stratigraphic age/petrology/stratigraphic sequence/tectonic evolution分类
天文与地球科学引用本文复制引用
黄晓松,唐贤君,许怀智,何新建,陈永军..东海盆地西湖凹陷基底时空演化特征再认识及勘探意义[J].上海国土资源,2024,45(2):125-131,7.基金项目
"十四五"国家重大科技专项 （）
