摘要
依历史因果论大地构造学观点,就体现历史特点的大地构造体制来说,可将中国的油田划分为地槽型,地台型及地洼型三种类型,以现阶段的动力环境而论,则可将中国油气区划分为地幔汇聚型油气域和地幔扩散型油气域,并可进一步暂分为四大油气区,即陆缘海扩张型壳体油气大区,东部拉张型壳体油气大区,中部张一压型壳体油气大区和西部挤压型壳体油气大区,各大区成油气建造组合的大地构造类型,油气形成条件、油气藏类型、产出特点及分布规律等方面均有较大的差异。这些差异与各壳体的大地构造演化历史、壳体运动过程和动力学性质,以及各壳体的深部地质条件有密切关系。
The oil and gas fields of China may be classed using either of two schools of tectonic thought:historistie or cansationist.For example,in terms of the historistie ap- proach,one has geosynclinal,platformal,and geodepressional(diwa)tectonic classes.In terms of the causationist approach which emphasizes the present tectonic setting,the oil and gas regions maybe differenti- ated into regions which exhibit products of convergent or divergent processes. From an integrated historistic-causationist geotectonic viewpoint,four principle megaregions may be defined which differ with respect to types,occurrence peculiarities,and distribution patterns of oil and gas accumulations.The megaregions are:1.epicontinental sea,spreading-type crustobody,2.eastern tensional-type crustobody,3.central tension-compressional-type crustobody,and 4.western compressional-type crustobody.These megaregions differ in the histories of the tectonic evolution of the crustobodies,the processes and dynamic characteristics of the movements of ctnstobodies,and the deep geological conditions of crustobodies.
出处
《大地构造与成矿学》
EI
CAS
CSCD
1993年第1期1-12,38,共13页
Geotectonica et Metallogenia
基金
系"八.五"期间中国科学院资源环境局资助项目--<历史因果论大地构造学的建立及应用>项目中"东亚-西太平洋大地构造的历史因果论分析"课题的油气专题研究成果之一.
关键词
油气区
油气藏
大地构造
历史
Oil and gas region in China
historistic-causationist geotectonics
crustobody
