论文部分内容阅读
东海是我国重要的经济活动区,近些年来,随着东海石油和天然气的发现,更引起了世人的注意.有关东海油气形成的问题,亦是人们所关注的.过去人们对东海近代沉积的研究,大多侧重于海底沉积物类型、来源以及分布规律等方面.而对有机质地球化学研究较少.我们趁参加1980—1981年“中国-美国长江口及东海陆架沉积作用过程”联合调查的机会,在长江口和东海陆架上,共取了18个现代海底沉积样品(图1),进行了石油地球化学方面的研究工作.虽因样品数量较少,认识上尚存在片面性,但为今后进一步对有机地球化学的研究,创造了条件.
In recent years, with the discovery of oil and natural gas in the East China Sea, the East China Sea has aroused the attention of the world. Concerns over the formation of oil and gas in the East China Sea are also of concern. In the past, Most of the researches focus on the type, source and distribution of seabed sediments, while there are few studies on the geochemistry of organic matter.We take the opportunity to participate in the joint investigation of the “China-US sediment deposition process along the Yangtze Estuary and the East China Sea shelf” from 1980 to 1981 , A total of 18 modern seafloor sedimentary samples (Figure 1) were taken from the Yangtze Estuary and the East China Sea shelf to carry out research work in the field of petroleum geochemistry.Although there is still a one-sidedness in cognition due to the small number of samples, The research on organic geochemistry has created the conditions.