globalchange  > 过去全球变化的重建
DOI: 10.1016/j.palaeo.2015.09.010
论文题名:
Palynology of the Early Cretaceous Hanxia Section in the Jiuquan Basin, Northwest China: The discovery of diverse early angiosperm pollen and paleoclimatic significance
作者: Zhang M.; Ji L.; Du B.; Dai S.; Hou X.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2015
卷: 440
起始页码: 297
结束页码: 306
语种: 英语
英文关键词: Albian ; China ; Early angiosperm ; Jiuquan Basin ; Palynology
英文摘要: The Lower Cretaceous deposits of the Jiuquan Basin (Northwestern China) located in central Asia are famous for the abundant and diverse fossil products with distinct characteristics of Jehol Biota. However, few early angiosperm remains have been published in their entirety. This study presents a palynomorph record from the recently reported fossil-bearing Zhonggou Formation of the Hanxia Section in the Jiuquan Basin. Here, we first discovered abundant and diverse angiosperm pollen with 16 taxa, which can be classified into four morphological types: tricolpate, polyaperturate, monosulcate and etrachotomocolpate apertures. The palynomorph assemblages contain a large number of biostratigraphically significant palynomorphs, such as numerically abundant tricolpate and rare polyaperturate angiosperm pollen grains, which indicate an Early Albian age for the Zhonggou Formation of the Hanxia Section. The overall palynomorph assemblage is dominated by the Perinopollenites, followed by the Classopollis; bisaccate pollen indicate Taxodiaceae-dominant vegetation types. As such, a relatively temperate and humid climatic condition is suggested for this area. Furthermore, two palynomorph assemblages can be distinguished in a stratigraphically upward order with an obviously increasing Classopollis content, indicating a gradual aridification trend during the Early Albian. This climatic change may affect the diversification of early angiosperms based on the correlation with the stratigraphic distribution of discovered angiosperm pollen. © 2015 Elsevier B.V.
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/68737
Appears in Collections:过去全球变化的重建

Files in This Item:

There are no files associated with this item.


作者单位: Key Laboratory of Petroleum Resources, Gansu Province/Key Laboratory of Petroleum Resources Research, Institute of Geology and Geophysics, Chinese Academy of Sciences, Lanzhou, China; Key Laboratory of Western China's Mineral Resources of Gansu Province, MOE Key Laboratory of Western China's Environmental Systems, Lanzhou University, Lanzhou, China; State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu, China

Recommended Citation:
Zhang M.,Ji L.,Du B.,et al. Palynology of the Early Cretaceous Hanxia Section in the Jiuquan Basin, Northwest China: The discovery of diverse early angiosperm pollen and paleoclimatic significance[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2015-01-01,440
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Zhang M.]'s Articles
[Ji L.]'s Articles
[Du B.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Zhang M.]'s Articles
[Ji L.]'s Articles
[Du B.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Zhang M.]‘s Articles
[Ji L.]‘s Articles
[Du B.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.