The Mesoproterozoic Oxygenation Event

Zhang, Shuichang; Wang, Huajian; Ye, Yuntao

doi:10.1007/s11430-020-9825-x

Cited by 26 publications

(15 citation statements)

References 142 publications

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“…Wei et al, 2021). These results imply the aqueous environments and atmosphere were similarly oxidized as the time interval from 1.45 to 1.33 Ga with the atmospheric oxygen content below 9% PAL (Liu et al, 2020;Lyons et al, 2021;Zhang et al, 2021).…”

Section: Redox Chemistry Of the Depositional Environment Of Yunmengsh...mentioning

confidence: 74%

“…The Yunmengshan IF samples have markedly positive δ 53 Cr auth values (δ 53 Cr auth = 1.11–2.53‰), higher than records of the BSE (−0.12‰) and the shale and other ironstones before 1.6 Ga (δ 53 Cr auth < 0‰; Figure S4 in Supporting Information ), while compatible with the highly positively fractionated δ 53 Cr auth record of sediments shales between 1.45 and 1.33 Ga, but lower than the shales formed in a more oxidized atmosphere between 0.8 and 0.63 Ga with the atmospheric oxygen concentration >10% (Figure S4 in Supporting Information ; Canfield et al., 2018; Cole et al., 2016; Gilleaudeau et al., 2016; N. J. Planavsky et al., 2014; W. Wei et al., 2021). These results imply the aqueous environments and atmosphere were similarly oxidized as the time interval from 1.45 to 1.33 Ga with the atmospheric oxygen content below 9% PAL (Liu et al., 2020; Lyons et al., 2021; Zhang et al., 2021).…”

Section: Discussionmentioning

confidence: 85%

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Early Prosperity of Iron Bacteria at the End of the Paleoproterozoic Era

Qiu

Qin

Huang

et al. 2022

Geophysical Research Letters

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Various iron formation (IFs) document the interplay between the geosphere and the early biosphere during their co‐evolution. At the transition between the Paleo‐ and Mesoproterozoic eras, the oxidation of the atmosphere and ocean resulted in the waning of the typical marine deposited banded IFs. Here, we report the ∼1.7 Ga Yunmengshan IF at the southern margin of the North China Craton deposited in the intertidal to upper subtidal zone belonging to river delta of coastal environments. The combined REE + Y patterns and negative δ56Fe with positive δ53Cr values reveal terrestrial precipitation of iron oxide and an enhanced continental oxidative weathering at the end of Paleoproterozoic era due to increased atmospheric oxygen level. The oxygen level happened to have facilitated the early prosperity of microaerophilic Fe(II)‐oxidation bacteria on Earth's terrestrial surface, which is recorded by the coastal shallow water iron deposits globally characterized by their small scale and subaerial features.

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Section: Redox Chemistry Of the Depositional Environment Of Yunmengsh...mentioning

confidence: 74%

Section: Discussionmentioning

confidence: 85%

Early Prosperity of Iron Bacteria at the End of the Paleoproterozoic Era

Qiu

Qin

Huang

et al. 2022

Geophysical Research Letters

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“…税国豪等初步估算了华北燕辽盆地~1320 Ma 大规模辉绿岩床群侵入到下马岭组黑色页岩内释放的 CO 2 量可达 1.1010 12 吨，并认为其对环境影响的地质记录(如碳同位素负漂移，元素或其它同位素异常、生物量指标的差异等)可能存在于全球其它克拉通(如西伯利亚、波罗地等)~1320 Ma 沉积地层中 [83] . Diamond 等认为 14001350 Ma 大气氧含量的增加 [71,72,77] 可能与哥伦比亚超大陆裂解期大火成岩省有关 [86] .…”

Section: 这一基于大火成岩省及基性岩浆事件群精细对比的重建方案也得到了古地磁结unclassified

Proterozoic large igneous provinces and implications for paleogeographic and paleoenvironmental reconstructions

Zhang¹,

Peng²

2022

Chin. Sci. Bull.

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The Proterozoic (2500541 Ma) is one of Earth's most important periods of transition in terms of tectonic regimes, atmosphere-ocean environments, and biological evolution. It is known as a transitional stage from prevailingly anoxic (Archean) to predominantly oxic (Phanerozoic) oceans and a transition in biological evolution from uninhabitable to inhabited. Proterozoic large igneous provinces (LIPs) of typically mafic dyke (sill) swarms and minor continental flood basalts are common

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“…Therefore, the most possible source should be biologically recycled continental Fe, which has been suggested as a major component in the 2.5 Ga Dales Gorge member IF [45]. Considering the still low oxidation levels in Mesoproterozoic atmosphere and ocean [46,47], the iron cycle in the ocean might be comparable to that of the terminal Archaean [36]. No matter which reason takes over, a ferruginous-dominated ocean during the Xiamaling Formation has already been confirmed [6,33,34,36,42,48].…”

Section: Supply Of Fe 2+ and Hco 3 − By Dissimilatory Iron Reductionmentioning

confidence: 99%

Multi-Element Imaging of a 1.4 Ga Authigenic Siderite Crystal

Wang

Deng

et al. 2021

Minerals

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Iron formations (IFs) are traditionally considered to be limited during 1.8−0.8 Ga. However, there are recent reports of siderite-dominated IFs within this time interval, such as the 1.40 Ga Xiamaling IF in North China and the 1.33 Ga Jingtieshan IF in Qilian. To further explore the crystallization and formation mechanisms of siderite, an authigenic siderite crystal from the Xiamaling IF was fully scanned using laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). Multi-element imaging with a spatial resolution of 5 μm revealed an obvious rim structure of the siderite crystal, which might record the crystallization and growth processes. The Al- and Fe-enriched zone in the core of siderite crystal might be an iron-bearing nucleus, and the formation of rim structure was related to the transition from a closed crystallization environment to a semi-closed growth environment. These results, combined with carbon isotope evidence from the siderites and surrounding shales, suggest that vigorous dissimilatory iron reduction that can provide Fe2+ and HCO3− to the pore water is a key factor to form the siderite-dominated Xiamaling IF.

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The Mesoproterozoic Oxygenation Event

Cited by 26 publications

References 142 publications

Early Prosperity of Iron Bacteria at the End of the Paleoproterozoic Era

Early Prosperity of Iron Bacteria at the End of the Paleoproterozoic Era

Proterozoic large igneous provinces and implications for paleogeographic and paleoenvironmental reconstructions

Multi-Element Imaging of a 1.4 Ga Authigenic Siderite Crystal

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