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本研究利用保存丰富、完好的放射虫对塔斯曼海更新世层序进行地层学分析。对塔斯曼海南部更新世的KH94-4TSP-4PC岩芯的放射虫组合进行了详细的生物地层学分析,并从8 .6 m长的岩芯中识别出83种放射虫。依据放射虫属种的出现和消失,可得到两个放射虫带,即Chi带(老)和Psi带(新)。Chi带的顶部以Saturnalis cir-culariHaeckel ,Cycladophora pliocenicaHays的最后出现和Triceraspyris antarcticaHaecker的首次出现为标志。Psi带的顶部以Stylatractus universusHay和Antarctissa cylindricaPetrushevskaya的最后出现为标志。这些放射虫带可与浮游生物的有孔虫Globorotalia ( G.) truncatulinoides带进行对比。
In this study, stratigraphic analysis of the Pleistocene sequence in the Tasman Sea was carried out using well preserved radiolarian worms. Detailed bio-stratigraphic analyzes of the radiolarian assemblages of the Pleistocene KH94-4TSP-4PC core in the southern Tasman Sea have identified 83 radiolarians from a core of 8.6 m in length. Based on the appearance and disappearance of radiolarios, two radiolarian bands, the Chi band (old) and the Psi band (new), are available. The top of the Chi band is marked by the last appearance of Saturnalis cir-culariHaeckel, Cycladophora pliocenicaHays and the first appearance of Triceraspyris antarcticaHaecker. The top of the Psi band is marked by the final appearance of Stylatractus universusHay and Antarctissa cylindricaPetrushevskaya. These radiolarian bands can be compared with planktonic Globorotalia (G.) truncatulinoides.