摘要
济阳坳陷是中国东部一 个重要的中新 生代含油气盆 地，过去一直认 为该盆地为纯 张裂成因，但 近来盆地内负反 转构造的发现和研 究表明，该盆地在中生代发育早期 曾经历了负反转、正反转交替的发育 阶段，并总体呈现为负反转盆地特 征。本文研究了负反转构造 的类型和特征，识别出“薄底型”和 “秃底型”两类负反转褶皱和“似正 断层型”、“上 正下逆混合型 ”等两类、４ 小类 负反转断层；探讨了 盆地与负反转构造的形 成与演化，并指 出了其在盆地 成因、构造带演 化、复式油气 聚集带型式及 油气藏形成与预 测等诸多方面具有 的重要意义。
The Jiyang Depression is an important Mesozoic-Cenozoic petroliferous basin in East China. In the past, it is always considered as a pure tensional fault basin. However, the latest descovery of negative inversion structure in the basin and its study show that the basin experienced alternate negative inversion and positive inversion stages in the early development period of the Mesozoic, and presents the characteristics of negative inversion structure on the whole. In this paper, the types and characteristics of negative inversion structure are studied, the 'thin based' and 'bald based' two types of negative inversion folds as well as 'paranormal fault type' and 'upper normal and lower reversed mixed type' two categories and four subcategories of negative inversion faults are identified, and the formation and evolution of the basin and the negative inversion structure are discussed. It is pointed out that the negative inversion structure has important significance to basin genesis, tectonic belt evolution, complex hydrocarbon accumulation belt patterns, pool formation and prediction, etc.
出处
《石油实验地质》
CAS
CSCD
北大核心
1999年第3期201-206,共6页
Petroleum Geology & Experiment
关键词
济阳坳陷
含油气盆地
负反转构造
石油地质
tectonic types
negative inversion structure
fault depression
petroliferous basins
petroleum geology
the Jiyang Depression
