干旱区生态环境知识资源中心(Arid): 冀北一辽西地区侏罗一白垩纪之交期的孢粉植物群演替与古气候变化

Arid

	冀北一辽西地区侏罗一白垩纪之交期的孢粉植物群演替与古气候变化
其他题名	The Palynoflora Alternation and the Paleoclimate Change at the Turning Time between Late Jurassic and Early Cretaceous in Northern Hebei and Western Liaoning
	王大宁; 王旭日; 季强
来源期刊	地球学报
ISSN	1006-3021
出版年	2016
卷号	37 期号:4 页码:449-459
中文摘要	本文根据冀北一辽西地区侏罗一白垩纪之交期孢粉植物群的地层分布,划分了9个孢粉植物群组合带(自下而上):桫椤孢-苏铁粉-克拉梭粉组合带、克拉梭粉组合带、无突肋纹孢-滦平孢-纵肋单沟粉组合带、云杉粉-层环孢-无突肋纹孢-膜环弱缝孢组合带、云杉粉-无突肋纹孢-凹边瘤面孢组合带、辽西孢-刺毛孢-克拉梭粉组合带、刺毛孢-有突肋纹孢-无突肋纹孢-三孔孢组合带、三角孢-无突肋纹孢-有突肋纹孢组合带和无突肋纹孢-克拉梭粉-希指蕨孢-麻黄粉组合带;重建了该区当时的古气候和古环境,认为中侏罗世时期该区处于温暖湿润气候下的低山丘陵环境,晚侏罗世时期处于干旱气候下的荒原环境,早白垩世早期处于温凉湿润气候下的低山环境,早白垩世中期处于温凉湿润气候下的高山环境,早白垩世晚期处于温暖湿润气候下的低地沼泽环境,早白垩世最晚期处于干热气候下的低地环境。此外,本文还根据该区侏罗一白垩纪之交期生物群演化和更替的特征,提出了避难所理论模式。
英文摘要	According to the stratigraphic distribution of the palynoflora at the turning time of the Jurassic-Cretaceous in northern Hebei and western Liaoning, nine sporopollen assemblage zones can be recognized, which are in ascending order of Cyathidites-Cycadopites-Classopollis Assemblage Zone,Classopollis Assemblage Zone, Piceites-Podocarpidites-Schizaeoisporites Assemblage Zone,"Cicatricosisporites-Luanpingspora-Jugella" Assemblage Zone, PiceaepollenitesDensoisporites -Cicatricosisporites -A eguitriradites Assemblage Zone, PiceaepollenitesCicatricosisporites -Concavissimisporites Assemblage Zone, Liaoxisporites-Pilosisporites -Clasopollis Assemblage Zone,Pilosisporites-AppendicisporitesCicatricosisporites-Triporoletes Assemblage Zone, Deltoidospora-CicatricosisporitesAppendicisporites Assemblage Zone and CicatricosisporitesClassopollis -Schizaeoisporites-Ephedripites Assemblage Zone. Based on the sporopollen assemblages, the authors reconstructed the paleoclimate and paleoenvironment of the study area: warm and humid low mountains and hills in Middle Jurassic, arid wastelands in Late Jurassic, cool and damp low mountains in the early stage of Early Cretaceous, cool and damp high mountains in the middle stage of Early Cretaceous, warm and humid low lands and fenlands in the late stage of Early Cretaceous and xerothermic low lands in the latest stage of Early Cretaceous. In addition, this paper proposes a "sanctuary" model for the biota alternation at the turning time between Late Jurassic and Early Cretaceous.
中文关键词	侏罗一白垩纪 ; 孢粉植物群演替 ; 古气候变化 ; 冀北一辽西地区 ; 中国
英文关键词	Jurassic-Cretaceous palynoflora paleoclimate change northern Hebei-western Liaoning region China
语种	中文
国家	中国
收录类别	CSCD
WOS类目	GEOLOGY
WOS研究方向	Geology
CSCD记录号	CSCD:5764032
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/234105
作者单位	中国地质科学院地质研究所, 北京 100037, 中国
推荐引用方式 GB/T 7714	王大宁,王旭日,季强. 冀北一辽西地区侏罗一白垩纪之交期的孢粉植物群演替与古气候变化[J],2016,37(4):449-459.
APA	王大宁,王旭日,&季强.(2016).冀北一辽西地区侏罗一白垩纪之交期的孢粉植物群演替与古气候变化.地球学报,37(4),449-459.
MLA	王大宁,et al."冀北一辽西地区侏罗一白垩纪之交期的孢粉植物群演替与古气候变化".地球学报 37.4(2016):449-459.