盆地原型及其迭加改造分析的思路与方法——以早中生代永梅盆地为例  

Discussion on the thinkings and methods of prototype basin and its superposed process——taking example of Yongmei basin

作　　者：宋立军[1,2] 

机构地区：[1]西北大学含油气盆地研究所,陕西西安710065 [2]西安石油大学油气资源学院

出　　处：《石油地质与工程》2009年第5期4-7,11,共5页Petroleum Geology and Engineering

基　　金：国家重点基础研究发展规划项目"国家973计划"(批准号:2002CD211706);科技支撑项目(编号:2006BAB01B08);科技支撑计划项目(编号:2006BAB01A01);西安石油大学科技创新基金项目(206103);陕西省教育厅专项科研计划项目(07JK364);中国博士后基金项目(20080441181)资助成果

摘　　要：盆地作为负构造单元,记录了同沉积期的盆地沉降以及盆缘造山带演化的过程,盆地原型面貌、形态及其同期变形的空间展布和配置关系反映了区域动力作用方向和性质,不同时期原型盆地的叠合关系和历史指示了区域构造演化。在分析盆地原型恢复研究现状基础上,探讨了盆地原型及其迭加改造分析的内容、思路、方法,并以永梅早中生代盆地为例,探讨了永梅盆地由早期西侧前陆原型变成东侧前陆盆地原型的盆地原型及其迭加改造过程,这一过程充分表明了闽粤地区早中生代构造演化的历程及其动力学机制,也表明了其对区域大地构造演化研究的可行性与重要性。As a negative tectonic units,Basin records the process of basin subsiding and orogenic belt evolution of the same period. The original appearance, formation and deformation ofspace spreading and arrangement reacts regional power direction and property. The superposition and history of different period prototype basin directs regional tectonic evolution. On the basis of the bringing forward and actuality of prototype basin, this paper discusses the content, idea, method and meaning of prototype basin and its superposed process. Prototype of Yongmei basin is foreland basin in west side during Early-middle Triassic. However it is foreland basin in east side from late Triassic to middle Jurassic. Prototype and it's superposed of Yongmei basin show the evolution process of regional tectonics in Fujian and Guangdong province from Early-middle Triassic to middle Jurassic. The study shows that Prototype Basin and it's Superposed is essential for the region tectonic evolution.

关 键 词：区域大地构造演化 盆地原型 迭加改造 

分 类 号：TE111.2[石油与天然气工程—油气勘探]