中国东北地区的构造格局与盆地演化

Tectonic framework and basin evolution in Northeast China

周建波 张兴洲 马志红 刘立 金魏 张梅生 王成文 迟效果

Zhou Jianbo Zhang Xingzhou Ma Zhihong Liu Li Jin Wei Zhang Meisheng Wang Chengwen Chi Xiaoguo

东北地区不是海西期褶皱变质带(或造山带),而是早石炭世以来拼合成统一的复合地块,我们称为"佳木斯-兴蒙地块"。东北地区上古生界不是中-新生代盆地的结晶基底,而是具有准盖层性质的陆相-海相沉积盖层。晚古生代海相沉积建造中,暗色泥岩和碳酸盐岩发育,具有潜在的生烃潜力,是东北地区油气资源勘查的重要新层系。提出以嘉荫-牡丹江断裂和嫩江-开鲁断裂为界,将东北地区中-新生代盆地划分为西部、中部和东部三大盆地群,并确定了各盆地的成因类型、石油地质特征及时空演化规律。

The Northeast China is not a Hercynian folded metamorphic belt(or orogenic belt),but a compound terrain pieced together after the Early Carboniferous.We name it "Jiamusi-Xingmeng Terrain".The Upper Paleozoic is not the crystalline basement for Meso-Cenozoic basins in Northeast China,but marine and continental sedimentary cover of para-caprock nature.The Late-Paleozoic marine sequences have well-developed dark mudstones and carbonates,which is the evidence for hydrocarbon potential.These sequences are important new targets for exploring oil and gas in Northeast China.We propose that the Meso-Cenozoic basins in Northeast China could be divided into three basin groups-the west,the middle and the east separated by the Jiayin-Mudanjiang fault and the Nenjiang-Kailu fault.The genetic type,characteristics of petroleum geology and the temporal and spatial evolution pattern of each basin are also discussed in this paper.

10.11743/ogg20090502