论文部分内容阅读
本文论述了鄂尔多斯盆地南部,陕西吴旗与甘肃太白之间志丹群环河—华池组下—中段的孢子花粉,计有61个属,110余种。根据孢粉组合特征及与国内外已知资料对比、分析,指出环河—华池组下—中段的时代应归早白垩世早期。本材料不但填补了该地区早白垩世孢粉研究的空白,而且对志丹群的进一步划分对比提供了生物证据,同时也丰富了我国白垩纪的孢粉资料。
This paper deals with the spore pollen in the lower-middle section of the Zhidanquhuan-Huachi Formation between Wuqi, Shaanxi Province and Taibai, Shaanxi Province, with 61 genera and more than 110 species in the southern Ordos Basin. According to the characteristics of sporopollen assemblages and the comparison with the known data at home and abroad, it is pointed out that the lower-middle section of the Huhhot-Huachi Formation should belong to the early Early Cretaceous. This material not only fills in the gaps in the research of spore-pollen in the Early Cretaceous in this area, but also provides biological evidence for the further division and comparison of the Zhidan Group. It also enriches the Cretaceous sporopollen in our country.