气候变化领域集成服务门户(CCPortal): Rare earth element input and transport in the near-surface zonal current system of the Tropical Western Pacific

CCPortal

DOI	10.1016/j.epsl.2020.116496
	Rare earth element input and transport in the near-surface zonal current system of the Tropical Western Pacific
	Behrens M.K.; Pahnke K.; Cravatte S.; Marin F.; Jeandel C.
发表日期	2020
ISSN	0012821X
卷号	549
英文摘要	Continental sources and current transport play a major role in rare earth element (REE, and other trace element) input and distribution in the Tropical Western Pacific. Here, we present spatially highly resolved distributions of dissolved REE concentrations ([REE]) along three transects in the zonal (extra-)equatorial current system and the Solomon Strait of the Tropical Western Pacific. We use seawater [REE] in combination with direct physical oceanographic observations (e.g., current velocity data) to characterize the geochemical composition, origin and pathways of the complex surface and upper layer currents of the Tropical Western Pacific and to quantify the input fluxes of REEs. We identify Papua New Guinea (PNG) volcanic rocks, sediments, and/or river particles as the key source adding trace elements to the equatorial eastward zonal currents of the Tropical Western Pacific. Our and published data indicate temporal and spatial variability of this input and transport in the PNG source area and the equatorial eastward currents. The westward currents, on the other hand, lack this REE input signal suggesting lateral transport of preformed seawater [REE]. At the transition between these zonal eastward and westward currents, our data indicate lateral mixing of Eastern and Western Pacific source waters. © 2020 Elsevier B.V.
关键词	GEOTRACES rare earth elements zonal current system
英文关键词	Electronic guidance systems; Exploratory geochemistry; Rare earth elements; Rare earths; Seawater; Tropics; Volcanic rocks; Current transport; Current velocity; Geochemical composition; Lateral transport; Papua New Guinea; Temporal and spatial variability; Tropical Western Pacific; Westward current; Trace elements; concentration (composition); dissolved matter; mixing; rare earth element; source apportionment; spatiotemporal analysis; trace element; zonal flow; Pacific Ocean; Pacific Ocean (Tropical)
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/202483
作者单位	Marine Isotope Geochemistry, Institute for Chemistry and Biology of the Marine Environment (ICBM), University of Oldenburg, Carl-von-Ossietzky-Str. 9-11, Oldenburg, 26129, Germany; LEGOS, Université de Toulouse, (IRD, CNES, CNRS, UPS), Toulouse, France
推荐引用方式 GB/T 7714	Behrens M.K.,Pahnke K.,Cravatte S.,et al. Rare earth element input and transport in the near-surface zonal current system of the Tropical Western Pacific[J],2020,549.
APA	Behrens M.K.,Pahnke K.,Cravatte S.,Marin F.,&Jeandel C..(2020).Rare earth element input and transport in the near-surface zonal current system of the Tropical Western Pacific.Earth and Planetary Science Letters,549.
MLA	Behrens M.K.,et al."Rare earth element input and transport in the near-surface zonal current system of the Tropical Western Pacific".Earth and Planetary Science Letters 549(2020).