气候变化领域集成服务门户(CCPortal): Efficient Carbon Recycling at the Central-Northern Lesser Antilles Arc: Implications to Deep Carbon Recycling in Global Subduction Zones

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DOI	10.1029/2020GL086950
	Efficient Carbon Recycling at the Central-Northern Lesser Antilles Arc: Implications to Deep Carbon Recycling in Global Subduction Zones
	Li K.; Li L.; Aubaud C.; Muehlenbachs K.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:9
英文摘要	Carbon recycling efficiency of arc (CREA) is an important parameter to assess the recycling of slab carbon into Earth's deep interior. Although previous studies observed variable degrees of recycled slab carbon at global arcs, the CREA value of any individual subduction zone has not been obtained due to the loose constraints on carbon budget in altered oceanic crust (AOC). Here, through estimates of carbon input by both sediments and AOC at DSDP Site 543 and recycled carbon output from major volcanoes in the Central-Northern Lesser Antilles, we show an extremely efficient carbon recycling case, with the CREA value reaching 100±27%. Nearly complete slab carbon release at sub-arc depth implies little carbon has been lost in the forearc region or subducted into the deep mantle in this subduction zone. Our results highlight strongly variable CREA on a global scale, which must be considered in the modeling of global deep carbon cycle. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Budget control; Recycling; Altered oceanic crusts; Carbon budgets; Carbon recycling; Deep carbon cycles; Deep mantles; Global scale; Lesser Antilles; Subduction zones; Carbon; carbon budget; carbon cycle; forearc basin; mantle structure; oceanic crust; recycling; subduction zone; volcanic eruption; Lesser Antilles
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170375
作者单位	Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, AB, Canada; Laboratoire de Geochimie des Isotopes Stables, Institut de Physique du Globe, Université de Paris, Paris, France
推荐引用方式 GB/T 7714	Li K.,Li L.,Aubaud C.,et al. Efficient Carbon Recycling at the Central-Northern Lesser Antilles Arc: Implications to Deep Carbon Recycling in Global Subduction Zones[J],2020,47(9).
APA	Li K.,Li L.,Aubaud C.,&Muehlenbachs K..(2020).Efficient Carbon Recycling at the Central-Northern Lesser Antilles Arc: Implications to Deep Carbon Recycling in Global Subduction Zones.Geophysical Research Letters,47(9).
MLA	Li K.,et al."Efficient Carbon Recycling at the Central-Northern Lesser Antilles Arc: Implications to Deep Carbon Recycling in Global Subduction Zones".Geophysical Research Letters 47.9(2020).