Early Cretaceous Palynological Assemblage and Its Environmental Significance in the Sediments of Liupanshan Group (Sikouzi Section), Liupanshan Region , Central China
详细信息
- 责任者：Zhang Mingzhen (Key Laboratory of Western China’s Environmental Systems ; Ministry of Education ; Lanzhou University ; Lanzhou 730000 ; China) ; Dai Shuang
- 刊名：Arid Land Geography
- 出版年：2012
- 卷期：35(1)
- 关键词：早白垩世 ; Lower Cretaceous ; 孢粉组合 ; palynological assemblage ; 古环境 ; paleoenvironment ; 六盘山 ; Liupan Mountains
- 页码：p.99-108
- 图表：4 illus., 1 table, 42 refs.
- 分类号：1200
- issnNo：ISSN1000-6060
- isbnNo：CN65-1103/X
摘要
The palynological study of 11 samplles from Lower Cretaceous Liupanshan Group on the Sikouzi section (spanning 116～103 Ma), Liupanshan Basin was carried out. 55 species (45 genera) of spore and pollen are detected. The palynoflora indicates that the climate in the Liupanshan area is hot and dry, and the palaeogeography is characterized by complex and various outlook during the late Early Cretaceous. The trend of climate change recorded by the pollen assemblages coincide with the global sea surface temperature fluctuation.
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