干旱区生态环境知识资源中心(Arid): Reconfiguring oxygenation at ∼1.4 Ga: New constraints as informed by the ancient oceanic sulfur cycle

Arid

DOI	10.1016/j.gloplacha.2023.104345
	Reconfiguring oxygenation at ∼1.4 Ga: New constraints as informed by the ancient oceanic sulfur cycle
	Jiang, Ziwen; Cai, Chunfang; Tino, Christopher J.; Wang, Daowei; Qi, Yu; Sun, Peng; Peng, Yanyan; Hu, Yongjie; Liu, Dawei; Wei, Tianyuan; Jiang, Lei
通讯作者	Cai, CF
来源期刊	GLOBAL AND PLANETARY CHANGE
ISSN	0921-8181
EISSN	1872-6364
出版年	2024
卷号	232
英文摘要	The extent of atmospheric and oceanic oxygenation during the Mesoproterozoic remains an area of active debate. Here, we report major and trace elements, organic sulfur (OS) speciation, sulfur isotopes in multiple phases [pyrite (py), OS, and carbonate-associated sulfate (CAS)], and a numerical model of sulfate concentrations from one of the Mesoproterozoic's best-preserved geochemical archives, the Xiamaling Formation (ca. 1.4 Ga) in the Yanliao Basin. These data reveal a previously unrecognized ocean-atmosphere oxygenation process. Starting with Unit 3, intense sulfurization increased organic carbon burial and thus oxygen release, resulting in a deep-water oxidation event within the Yanliao Basin that could be regarded as a transient restricted oxygen oasis based on low pyrite content, elevated kerogen S:C ratios, higher delta S-34(py) than delta S-34(OS) (Delta delta S-34(OS-py) < 0), and a low calculated sulfate concentration of similar to 0.07-0.14 mM. During Unit 2, the basin was reconnected to the open ocean with the deposition of organic-rich shale across northern China and northern Australia, accompanied by a shift in Delta delta S-34(OS-py) to 5.0 parts per thousand and a calculated seawater sulfate concentration of similar to 0.1-1.14 mM. Such large-scale burial of organic matter released oxygen into the atmosphere, accompanied by significant sulfate delivery to the basin and euxinic conditions characterized by Mo concentrations and S-34-depleted pyrite at the topmost of Unit 2. A subsequent globally synchronized atmospheric and deep ocean oxygenation event may have occurred during Unit 1. This event was recorded by a progressive increase in Delta delta S-34(OS-py) (up to +9.6 parts per thousand), increased oxidized OS species, and positive Ce anomalies (attributed to the reductive dissolution of the Ce-enriched Mn oxides), all of which were caused by increased sulfate concentrations (calculated to be similar to 1.15-2.31 mM) and a spatial descent of the redox interface. The combination of these lines of evidence illustrates the sensitivity of the oceanic sulfur cycle to the ocean-atmosphere system and provides novel constraints on oxygenation at similar to 1.4 Ga.
英文关键词	Mesoproterozoic Organic sulfur isotopes Sulfur cycle Redox structure Oxygenation event
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001145920300001
WOS关键词	ORGANIC-MATTER SULFURIZATION ; RARE-EARTH-ELEMENTS ; NORTH CHINA CRATON ; CARIACO BASIN ; ISOTOPE FRACTIONATION ; PROTEROZOIC SEAWATER ; REDOX HETEROGENEITY ; TRACE-METALS ; LOW-SULFATE ; SULFIDE
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403969
推荐引用方式 GB/T 7714	Jiang, Ziwen,Cai, Chunfang,Tino, Christopher J.,et al. Reconfiguring oxygenation at ∼1.4 Ga: New constraints as informed by the ancient oceanic sulfur cycle[J],2024,232.
APA	Jiang, Ziwen.,Cai, Chunfang.,Tino, Christopher J..,Wang, Daowei.,Qi, Yu.,...&Jiang, Lei.(2024).Reconfiguring oxygenation at ∼1.4 Ga: New constraints as informed by the ancient oceanic sulfur cycle.GLOBAL AND PLANETARY CHANGE,232.
MLA	Jiang, Ziwen,et al."Reconfiguring oxygenation at ∼1.4 Ga: New constraints as informed by the ancient oceanic sulfur cycle".GLOBAL AND PLANETARY CHANGE 232(2024).