CAJ | 학술논문

常被作为淡水湖泊沉积相的指示植物--盘星藻(Pediastrum spp.)亚化石，在许多国家均有发现．我国新生代油田的岩芯中亦有较多的盘星藻化石的记载(包括江苏、湖北、河北、西北和东北等地)．本文报告了盘星藻在湖泊中沉积成矿的探索性研究，证明盘星藻等浮游藻类在成矿或成油的过程中有一定的贡献．
상피작위담수호박침적상적지시식물--반성조(Pediastrum spp.)아화석，재허다국가균유발현．아국신생대유전적암심중역유교다적반성조화석적기재(포괄강소、호북、하북、서북화동북등지)．본문보고료반성조재호박중침적성광적탐색성연구，증명반성조등부유조류재성광혹성유적과정중유일정적공헌．
A lot of algae fossils were found in Cenozoic lake sediments, especially Pediastrum fossil sedimentary deposits in some places of China and also in some nearby seacoasts. For imitating Pediastrum mine ralization in lake sediments, several species of Pediastrum are cultured usinng BBM medium and sea water with 18% salt. By optical and electronic microscope observation and photosyntheic pigment analysis, we found that Pediastrum boryanum, P. duplex var clathratum and P. tetras, etc. cannot grow well in sea water. If cultured in saline medium, the specimen will die in a short period of time. We consider that probably the Pediastrum fossil that appeared in marine sediments were transported to the sea by river. In order to prove the mineralization condition of in living organism and fossils of Pediastrum,the following analysis is made. The fat-soluble substances are high and they contain a small amount of alkane, alkene fatty acid and a great deal of plant pigments. Pediastrum has high H/C and low O/C (atom number ratio) value. Therefore, it is a good resource of oil formation. The products of oxidative degradation of the insoluble cell-wall of Pediastrum are similar to the production obtained by kerogen,which is known to be of algal origin. So, the insolable materials of cell-wall are probably a source of kerogen during the deposition.