气候变化领域集成服务门户(CCPortal): Global continental volcanism controlled the evolution of the oceanic nickel reservoir

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DOI	10.1016/j.epsl.2021.117116
	Global continental volcanism controlled the evolution of the oceanic nickel reservoir
	Liu H.; Konhauser K.O.; Robbins L.J.; Sun W.-D.
发表日期	2021
ISSN	0012821X
卷号	572
英文摘要	Wanning nickel (Ni) abundances in the Neoarchean may have led to a decline in marine methanogenic bacteria due to the loss of a key micronutrient, causing a collapse in atmospheric methane levels and the subsequent rise of atmospheric oxygen – the Great Oxidation Event ∼2.5 Ga. However, this hypothesis currently lacks geological evidence that corroborates the processes that led to a decline in the supply of Ni to the oceans at that time. Here we investigate temporal variations of Ni concentrations in the likely source rocks – various volcanic lithologies - spanning the past 3.5 Byr. By applying a spatially gridded resampling to geochemical data from a global compilation of ∼96,000 continental volcanic rocks, we show that komatiites and basaltic-andesitic rocks largely controlled Ni fluxes to the Earth's surface during the Archean but had a waning influence thereafter due to the secular cooling of the mantle. A new compilation of marine shales (397 samples) and an updated compilation of banded iron formations (2037 samples) further confirms a declining clastic and dissolved supply of terrestrial Ni, respectively. Interestingly, we further observed a stable marine Ni concentration for the last 2 Byr. To explain this unexpected trend, we provide a computational model of mantle melting demonstrating that increasing melting pressures likely inhibited a further decline of Ni concentration in volcanic rocks and led to this relative consistency in Ni supply. © 2021 Elsevier B.V.
关键词	BIF nickel Precambrian shales volcanic rocks
英文关键词	Atmospheric chemistry; Degassing; Melting; Shale; Volcanic rocks; Volcanoes; Atmospheric methanes; Atmospheric oxygen; BIF; Great Oxidation Event; Neoarchean; Nickel concentrations; Precambrian; Source rocks; Temporal variation; Volcanics; Nickel
语种	英语
来源期刊	Earth and Planetary Science Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/203190
作者单位	Center of Deep-Sea Research, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao, 266071, China; Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao, 266071, China; Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, AB T6G 2E3, Canada; Department of Geology, University of Regina, Regina, SK S4S 0A2, Canada
推荐引用方式 GB/T 7714	Liu H.,Konhauser K.O.,Robbins L.J.,et al. Global continental volcanism controlled the evolution of the oceanic nickel reservoir[J],2021,572.
APA	Liu H.,Konhauser K.O.,Robbins L.J.,&Sun W.-D..(2021).Global continental volcanism controlled the evolution of the oceanic nickel reservoir.Earth and Planetary Science Letters,572.
MLA	Liu H.,et al."Global continental volcanism controlled the evolution of the oceanic nickel reservoir".Earth and Planetary Science Letters 572(2021).