摘要
在完成大小地震剖面解释３０余条的基础上，结合区域构造背景，采取盆地构造分析的方法，对塔里木盆地塔中凸起的形成和构造演化进行了分析。研究表明，塔中地区的构造样式以滑脱式逆冲为主，兼具走滑分量。塔中凸起并非是一个完全对称的背斜，西部表现尤为明显，南西翼相对较陡，北东翼较缓，具有由北东向南西逆冲而成的冲断背斜的特点。研究表明，震旦纪至早奥陶世为塔中凸起的孕育期，奥陶纪末期为塔中凸起的开始形成期；志留纪、泥盆纪为塔中凸起的发展定型期；石炭二叠纪为塔中凸起的改造期；中生代为隆升和沉降交替进行期；新生代为稳定沉降期。塔中含油气系统经历了３个成藏期，即晚加里东期。
Tazhong uplift lies in the central part of Tarim basin. It is an important area of exploration for oil and gas. The structural characteristics of this area are analyzed,and a model of structural style is given. The structural style of Tazhong uplift is mainly a thrust system with strike slip component. The main structural stages include Presinian; Sinian Ordovician; Silurian Devonian; Carboniferous Permian; Triassic Creataceous and Tertiary Quaternary. Reservoirs of this area are mainly formed in three stages of Late Caledonian orogeny period, Early Hercynian orogeny period and Himalaya orogeny period.
出处
《石油大学学报（自然科学版）》
CSCD
1998年第4期14-17,共4页
Journal of the University of Petroleum,China(Edition of Natural Science)
基金
中国石油天然气总公司"八五"重点课题
关键词
构造类型
构造演化
油气藏
盆地
成藏
Talimu basin
structural type
tectonic evolution
oil and gas reservoir
