福建永安盆地显生宇构造层序地层及沉积模式  

Phanerozoic tectonic sequence stratigraphy and sedimentary model in Yong'an Basin,Fujian Province

作　　者：李斌 周游[1] 董振国 庄粤伶 何丽红 罗群 胡博文 Li Bin;Zhou You;Dong Zhenguo;Zhuang Yueling;He Lihong;Luo Qun;Hu Bowen(Hanshan Normal University,Chaozhou,Guangdong 521014;Shenhua Geological Exploration Co.,Ltd.,Beijing 102249;China University of Petroleum,Beijing 100049)

机构地区：[1]韩山师范学院,广东潮州521014 [2]神华地质勘查有限责任公司,北京102249 [3]中国石油大学,北京100049

出　　处：《地质科学》2025年第1期107-124,共18页Chinese Journal of Geology(Scientia Geologica Sinica)

基　　金：国家“973”项目“陆相致密油甜点成因机制及精细表征”(编号:2015CB250901);韩山师范学院2021年教授(博士)启动项目“湖南保靖地区志留系龙马溪组页岩气储层精细描述与页岩气富集成藏机理”(编号:QD202107)资助。

摘　　要：永安盆地是位于华夏板块上一个多旋回叠合的沉积盆地,显生宇发育齐全,开展构造层序地层及沉积模式研究是研究华夏板块沉积构造历史的有效途径,且可作为认识中扬子地区沉积构造演化的辅助手段,为湘鄂西页岩气勘探提供参考信息。研究结果认为:永安盆地显生宇可以划分出8个构造层序(TSQ1、TSQ2、TSQ3、TSQ4、TSQ5、TSQ6、TSQ7、TSQ8),均受控于区域性构造运动。TSQ1受控于加里东构造运动,TSQ2、TSQ3、TSQ4受控于海西构造运动,TSQ5受控于印支运动,TSQ6、TSQ7、TSQ8受控于燕山构造运动。显生宙以来,永安盆地经历了被动大陆边缘浅海陆棚碎屑岩—深水滞留盆地复理石沉积模式,滨浅海碎屑岩滨岸—台地—潮坪模式,前陆盆地河流—湖泊沉积模式,坳陷盆地河流—湖泊沉积模式,坳陷盆地火山—河流—湖泊沉积模式以及断陷盆地河流—冲积扇—湖泊沉积模式的历史演化,记录了华夏板块复杂、完整的构造历史。Yong'an Basin was a multi cycle superimposed sedimentary basin located on the Cathaysian Plate,in which the Phanerozoic was well developed.Studying the tectonic sequence stratigraphy and sedimentary model is an effective way to study the sedimentary tectonic history of the Cathaysian Plate.It can also be used as an auxiliary means to understand the sedimentary tectonic evolution of the central Yangtze region and provide reference information for shale gas exploration in western Hunan Province and Hubei Province.The research results show that the Phanerozoic in the Yong'an Basin could be divided into 8 tectonic sequences(TSQ1,TSQ2,TSQ3,TSQ4,TSQ5,TSQ6,TSQ7,TSQ8),which were controlled by regional tectonic movements.TSQ1 was controlled by the Caledonian tectonic movement;TSQ2,TSQ3 and TSQ4 were controlled by the Hercynian tectonic movement;TSQ5 was controlled by the Indochinese movement;TSQ6,TSQ7 and TSQ8 were controlled by the Yanshan tectonic movement.Since Phanerozoic,Yong'an Basin experienced a passive continental margin shallow sea shelf clastic rock deep water detention basin flysch sedimentary model,coastal shallow sea clastic rock coastal platform tidal flat model,sedimentary model of rivers and lakes in foreland basins,river lake sedimentary model in depression basins,the volcano river lake sedimentary model of depression basin and the river alluvial fan lake sedimentary model of fault basin.It recorded the complex and complete tectonic history of the Cathaysian Plate.

关 键 词：永安盆地 构造层序 沉积模式 华夏板块 页岩气 

分 类 号：P539.2[天文地球—古生物学与地层学] P542[天文地球—地质学]