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近年来随着石油勘探工作的日益进展,第三系孢粉化石资料也随之日渐丰富.笔者经过系统整理建立了广东第三纪十一个孢粉优势组合带,并通过对这些孢粉组合带的研究,与我国东部各盆地包括南海北部大陆架第三纪的古植物群进行对比.“孢粉优势组合”这一术语系沿用地植物学对现代植物群落中优势科,属进行统计的方法移用于地层中的孢粉化石,按百分比的最高含量作孢粉优势组合统计,并根据组合特征,用于鉴定地质时代.笔者认为从已知时代的地层中采用“孢粉优势组合”这一方法,不仅在鉴定时代、划分地层、进行区域对比;而且在反映古植物地理区内不同时代的古植物群面貌,回溯过去古植物群的演化历史等,均具有相似于“标准化石”的作用.
In recent years, with the progress of petroleum exploration, the Tertiary sporopollen fossils also become more and more rich.The author systematically organized eleven sporopollen assemblages in the Tertiary, Guangdong Province, Stratigraphic correlation with the ancient flora in the eastern continental basins including the Tertiary in the northern continental shelf of the South China Sea.The term “combination of sporopollen superiority” is a statistical method for the dominant families in modern plant communities, The sporopollen fossils which are transferred to the strata are counted as the highest percentage of the sporopollen assemblages and are used to identify the geologic age according to the combination characteristics.The authors consider that the sporopollen superior combination A method not only distinguishes stratigraphic and regional contrasts not only in the identification period but also in the aspects of ancient fauna that reflect different epochs in the ancient flora geographical area and retrospective evolution history of the past ancient flora, effect.