安延恺
An Yankai ;

• 1:天津电视大学 天津市地质矿产局

摘要(Abstract)：

按照已有资料,松辽盆地厚约6000～8000m的中生界和新生界覆于古生界基底之上。三叠纪末,印支运动导致基岩构成裂陷盆地(或裂谷盆地)。当燕山运功(晚侏罗世到早第三纪)时,由压缩改变为区域引张,盆地发展为北北东向的地堑和半地堑。推断盆地主要部分赋存的中生界都经历了形变和过热,直到晚白垩世—早第三纪时,这些岩石可能成熟为油源岩。精确地讲,控制烃类聚集主要因素是①沉积盆地的沉降和堆积;②由于板块运动所产生的盆地盖层形变。在松辽盆地内可能存在较多的有潜势的烃类圈闭,这些圈闭的主要类型是背斜构造,其余是断裂圈闭,潜山圈闭和这两者结合的圈闭。
Based on the existing data, Mesozoic and Cenozoic formations with the thickness of 6000-8000m overlie on the basement of Paleozoic in Songliao Basin. At the end of Triassic, Indo-China movement caused the basement to [fault, forming a faulted and subsided basin (or rift valley basin). During Yenshan movement occured (from late Jurassic to early Tertiary),changing from compression to reginal expansion, the basin was developed into a graben and a semi-graben tending N.N.E. Suppositively, the Mesozoic deposits within the main parts of basin underwent deformation, and overheated. These rocks did not become matured as source rocks until late Cretaceous to early Tertiary. Accurately speaking, main factors controlling hydrocarbon accumulation are:1) subsidence and accumulation of the sedimentary basin; 2) overburden deformation of the basin caused by plate movement. There might be many potential hydrocarbon traps in Songliao basin. The main type of these traps is tnticline and the others are; faulted traps, hurried hill traps and the combination of the two.

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Abstract:

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作者(Authors): 安延恺
An Yankai ;

DOI: 10.19597/j.issn.1000-3754.1986.01.002

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