鄂西秭归、当阳盆地陆相侏罗系中,多有黑色固体沥青产出。据我校师生调查,已发现出露点20处,纵向上分布于6个层位,主要集中于蓬莱镇组(表1);平面上,多见于秭归盆地中部和东部,少数见于当阳盆地东部(图1)。区内侏罗系盛产煤,未见液态油苗,而位于这两个盆地之间的二、三叠系海相碳酸盐岩地层中,多处发现液体油 In western Sichuan Zigui and Dangyang basin continental Jurassic, black solid bitumen is mostly produced. According to the survey conducted by teachers and students in our school, it has been found that there are 20 dew points distributed longitudinally in 6 horizons and mainly concentrated in Penglaizhen Formation (Table 1). On the plane, it is more common in the central and eastern Zangeng Basin and a few in the Dangyang Basin East (Figure 1). Jurassic area rich in coal, no liquid oil seedlings, and located between the two basins in the Triassic marine carbonate strata, many found in liquid oil