Heterogenous oceanic redox conditions through the Ediacaran-Cambrian boundary limited the metazoan zonation

doi:10.1038/s41598-017-07904-3

CORC > 南京地质古生物研究所 > 中国科学院南京地质古生物研究所 > 中国科学院南京地质古生物研究所

	Heterogenous oceanic redox conditions through the Ediacaran-Cambrian boundary limited the metazoan zonation
	Zhang, JP (张俊鹏); Fan, TL; Zhang, YD (张元动); Lash, GG; Li, YF
刊名	Scientific Reports
	2017
卷号	7 页码:8550
ISSN号	2045-2322
DOI	10.1038/s41598-017-07904-3
英文摘要	Recent studies have enhanced our understanding of the linkage of oxygenation and metazoan evolution in Early Cambrian time. However, little of this work has addressed the apparent lag of animal diversification and atmospheric oxygenation during this critical period of Earth history. This study utilizes the geochemical proxy and N isotope record of the Ediacaran-Cambrian boundary preserved in intra-shelf basin, slope, and slope basin deposits of the Yangtze Sea to assess the ocean redox state during the Early Cambrian metazoan radiation. Though ferruginous conditions appear to have prevailed through the water column during this time, episodes of local bottom-water anoxia extending into the photic-zone impacted the slope belt of the basin. Heterogenous oceanic redox conditions are expressed by trace element concentrations and Fe speciation, and spatial variation of N isotopes. We propose that the coupling of ocean chemistry and Early Cambrian animal diversification was not a simple cause-and-effect relationship, but rather a complex interaction. Specifically, it is likely that animal diversification expanded not only temporally but also spatially from the shallow shelf to deep-water environments in tandem with progressive oxygenation of the extensive continental margin.
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	NATURE PUBLISHING GROUP
WOS记录号	WOS:000407864000017
内容类型	期刊论文
源URL	[http://ir.nigpas.ac.cn/handle/332004/13405]
专题	中国科学院南京地质古生物研究所南京地质古生物研究所_其他
通讯作者	Zhang, JP (张俊鹏)
推荐引用方式 GB/T 7714	Zhang, JP ,Fan, TL,Zhang, YD ,et al. Heterogenous oceanic redox conditions through the Ediacaran-Cambrian boundary limited the metazoan zonation[J]. Scientific Reports,2017,7:8550.
APA	Zhang, JP ,Fan, TL,Zhang, YD ,Lash, GG,&Li, YF.(2017).Heterogenous oceanic redox conditions through the Ediacaran-Cambrian boundary limited the metazoan zonation.Scientific Reports,7,8550.
MLA	Zhang, JP ,et al."Heterogenous oceanic redox conditions through the Ediacaran-Cambrian boundary limited the metazoan zonation".Scientific Reports 7(2017):8550.