摘要
济源盆地基底为太古代到早元古代的结晶岩系和中上元古代和古生代沉积岩，盆地盖层主要由三叠纪、早中侏罗世、晚侏罗－早白垩世和早第三纪沉积构成，前三者呈构造改造后的盆地，后者为张性断陷盆地，总体呈叠加盆地。盆地经历印支运动、燕山运动、喜山运动的改造。烃源岩主要是上三叠统、中下侏罗统，潜在烃源岩是上古生界煤系地层和下古生界碳酸盐岩，主要生烃时期在始新世－渐新世受早第三纪断陷结构控制，油气可能发生多期运移。
Jiyuan basin lies in the northwest of Henan province. Its basement are Archaeozoic and Lower Proterozoic crystallographic rock and Middle-Upper Proterozoic and Paleozoic sedimentary rock.The infill of the basin included mainly Triassic, Lower-Middle Jurassic,Lower Cretaceous and Paleogene system. The former three were remanent of Later Triassic North China basin,Early and Middle lake basin in Luoyan-Sanmenxia-Jiyuan area,and Early Cretaceoue basin in Jiyuan area, the latter was extensional basin,all of them formed stacked basin in the Eogene perioe. This basin was reformed in Yinzhi movement,Yanshan movement and Ximalaya movement. The sources rock were mainly Upper Triassic Series,Lowermiddle Jurassic seriers,potiental souroes Carboniferous-Permian systems,and lower carbonatite. The main period of generation of oil and gas were in the later Eogene. There were three times of oil and natural gas mirgoration and accumulation due to tilting and tectonic movement.
出处
《断块油气田》
CAS
1997年第5期5-11,共7页
Fault-Block Oil & Gas Field
关键词
油气运聚
盆地
断裂
地质构造
油气勘探
Tectonic basin,Sources rock,Miragration and accumulation,Jiyuan basin
