干旱区生态环境知识资源中心(Arid): Palynological record of the Cretaceous ZKD14 core (Songliao Basin, Northeast China) and its paleoclimatic significance

Arid

DOI	10.1111/iar.12372
	Palynological record of the Cretaceous ZKD14 core (Songliao Basin, Northeast China) and its paleoclimatic significance
	Xu, Zenglian; Yang, Jun; Tang, Chao; Wei, Jialin; Zeng, Hui
通讯作者	Xu, ZL
来源期刊	ISLAND ARC
ISSN	1038-4871
EISSN	1440-1738
出版年	2020
卷号	29 期号:1
英文摘要	To better understand the vegetation and possible paleoclimate change, we recovered a palynological record obtained from the ZKD14 core covering from the Sifangtai and Mingshui Formations in the northern Songliao Basin, northeastern China. Based on the abundance and variations in determined palynomorphs, two palynological assemblages can be distinguished, including Schizaeoisporites-bisaccate-Tricolporopollenites and Taxodiaceaepollenites- bisaccate- Tricolporopollenites. These palynological assemblages are assigned to the late Campanian-Maastrichtian stage based on the geological range of some important elements and the correlation with relevant assemblages of other areas. In this paper, we applied a sporopollen-climate transforming methodology, which uses the percentage of xerophytic and thermophilic taxa to indicate stratigraphic trends of humidity and temperature, respectively. Then two vegetation and paleoclimate phases were reconstructed based on the ecological habits of the parent plant, as well as the abundance variation in xerophytic and thermophilic taxa: (i) The vegetation type was interpreted to reflect a mixed conifer forest with varying pteridophytes landscape, presenting a hot and arid subtropic climate during the Sifangtai to lower part of member 2 of the Mingshui Formations. (ii) The vegetation type was characterized by a conifer-dominant landscape. Accordingly, the climate turned more humid and colder during the upper part of member 2 of the Mingshui Formation. The global cooling event (Campanian-Maastrichtian Boundary Event: CMBE) which occurred between 72.0-70.0 Ma appears to have an important influence on the climatic condition of Songliao Basin.
英文关键词	northern Songliao Basin paleoclimate palynological record vegetation
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000592517800001
WOS关键词	TERTIARY ; BIOSTRATIGRAPHY ; STRATIGRAPHY ; PALYNOMORPH ; EVOLUTION ; BASEMENT ; CLIMATE ; ALBERTA ; EVENTS ; MIDDLE
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/327649
作者单位	[Xu, Zenglian; Yang, Jun; Tang, Chao; Wei, Jialin; Zeng, Hui] China Geol Survey, Tianjin Ctr, 4 Bahaolu, Tianjin 300170, Peoples R China; [Xu, Zenglian; Yang, Jun; Tang, Chao; Wei, Jialin; Zeng, Hui] China Geol Survey, Key Lab Uranium Geol, Tianjin, Peoples R China
推荐引用方式 GB/T 7714	Xu, Zenglian,Yang, Jun,Tang, Chao,et al. Palynological record of the Cretaceous ZKD14 core (Songliao Basin, Northeast China) and its paleoclimatic significance[J],2020,29(1).
APA	Xu, Zenglian,Yang, Jun,Tang, Chao,Wei, Jialin,&Zeng, Hui.(2020).Palynological record of the Cretaceous ZKD14 core (Songliao Basin, Northeast China) and its paleoclimatic significance.ISLAND ARC,29(1).
MLA	Xu, Zenglian,et al."Palynological record of the Cretaceous ZKD14 core (Songliao Basin, Northeast China) and its paleoclimatic significance".ISLAND ARC 29.1(2020).