干旱区生态环境知识资源中心(Arid): Microbial mat, organic-wall microfossils and geochemistry of the Ediacaran inter-diamictite black sediments in NW China: A short-lived habitable benthic, oxic and photic ice-free oases

Arid

DOI	10.1016/j.precamres.2023.107255
	Microbial mat, organic-wall microfossils and geochemistry of the Ediacaran inter-diamictite black sediments in NW China: A short-lived habitable benthic, oxic and photic ice-free oases
	Zhang, Xinsong; An, Yanqing; Chen, Yarui; Du, Weidong; Wang, Liyuan
通讯作者	Zhang, XS
来源期刊	PRECAMBRIAN RESEARCH
ISSN	0301-9268
EISSN	1872-7433
出版年	2024
卷号	401
英文摘要	The Ediacaran glaciation has garnered considerable attention for its potential biological impact because it witnesses the birth of complex animals. Many researchers question whether large-scale regional or even global glaciations, represent critical barriers to the evolution of macroscopic animals. So how did complex animals survive during a major glaciation? One possible explanation is the existence of isolated shallower refugia or icefree oases. However, the sedimentary evolution of such ice-free oases and how they could support the survival of complex life forms are not yet fully understood. This study focuses on the inter-diamictite black sediments in the Ediacaran Talisayi Formation of NW China (Yili block), which may represent a habitable ice-free oasis during the Gaskiers glaciation. The sedimentary facies and geochemical analyses indicate that these deposits were formed in oxygenated and photic shallow glacier lake environments with highly developed microbial mat substrates, it was formed during a short-lived partial deglaciation with enhanced weathering. And diverse organic-wall microfossils were found within the inter-diamictite black sediments. Furthermore, based on the growth habits of modern microbial algal mats, a paleontological clock can be established to estimate the duration of partial deglaciation, which may have lasted only for thousands of years. The ice-free oasis formed during this period could potentially harbor complex ecosystems, providing valuable ecological and temporal windows for the evolution of complex animals.
英文关键词	Ediacaran Gaskiers glaciation Ice free oasis Partial deglaciation Microbial mat
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001146484000001
WOS关键词	SNOWBALL EARTH ; NEOPROTEROZOIC GLACIATIONS ; CYANOBACTERIAL MATS ; SOUTH-AUSTRALIA ; CLIMATE-CHANGE ; TARIM BASIN ; EVOLUTION ; SURVIVAL ; ANIMALS ; SHELF
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/2XILL650/405218
推荐引用方式 GB/T 7714	Zhang, Xinsong,An, Yanqing,Chen, Yarui,et al. Microbial mat, organic-wall microfossils and geochemistry of the Ediacaran inter-diamictite black sediments in NW China: A short-lived habitable benthic, oxic and photic ice-free oases[J],2024,401.
APA	Zhang, Xinsong,An, Yanqing,Chen, Yarui,Du, Weidong,&Wang, Liyuan.(2024).Microbial mat, organic-wall microfossils and geochemistry of the Ediacaran inter-diamictite black sediments in NW China: A short-lived habitable benthic, oxic and photic ice-free oases.PRECAMBRIAN RESEARCH,401.
MLA	Zhang, Xinsong,et al."Microbial mat, organic-wall microfossils and geochemistry of the Ediacaran inter-diamictite black sediments in NW China: A short-lived habitable benthic, oxic and photic ice-free oases".PRECAMBRIAN RESEARCH 401(2024).