Cited by 161Geochemistry and Elemental AnalysisMarine and coastal ecosystemsPaleontology and Stratigraphy of Fossils

The comparative behaviors of yttrium and lanthanides in the seawater of the North Pacific

Zhang, J., Amakawa, H., Nozaki, Y.·1994·Geophysical Research Letters

Abstract

Yttrium has long been recognized as an ekalanthanide, because of its chemical contiguity relative to the chemistries of rare earth elements which are, in recent years, intensively utilized for elucidation of metal scavenging processes in the ocean. Here, we present the first detailed depth‐profile of Y(III) in seawater together with the lanthanides in the North Pacific Ocean. The concentrations of Y(III) range 70–290 pmol/kg and show the “nutrient‐like” profile best resembling that of Ho(III) amongst the other rare earth elements. The results agree well with an expectation based on the similarity in their ionic radii and hence stability constants of complexation with carbonate ions. Yet the Ho(III)/Y(III;) ratios in seawater systematically increase with depth, suggesting that Y and Ho are fractionated during scavenging by natural marine particulates. This is likely to result from the different complexation behavior in that Y(III) is more weakly complexed than Ho(III) with soft organic ligands on the surface of particulate matter during scavenging in the surface water but, once released into seawater in the deep sea, Y(III) is complexed with carbonate ions equally or stronger than Ho. The pattern of deep water enrichment in the lanthanide series appears to be consistent with the recent observation of partitioning between suspended particles and seawater. Our precise measurements also indicated that Pr and Tb best resemble Nd and Dy, respectively in their oceanic behavior, whereas Ho and Tm are intermediate between their neighboring rare earth elements.

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Crossref · 10.1029/94gl02404

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  • Aqueous fluids and their precipitates display Y/Ho ratios significantly higher than the molar ratio of 52 shown by common igneous rocks and epiclastic sediments, reaching molar ratios up to 90.

    “Aqueous fluids and their precipitates display Y/Ho ratios significantly higher than the molar ratio of 52 shown by common igneous rocks and epiclastic sediments (Bau, 1996, and references therein), reaching molar ratios up to 90 (Zhang et al., 1994; Bau et al., 1997; Nozaki et al., 1997).”

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Authors
Zhang, J., Amakawa, H., & Nozaki, Y.
Affiliations
The University of Tokyo (JP)
Venue
Geophysical Research Letters
Published
1994-12
Volume
21
Issue
24
Pages
2677-2680
ISSN
  • 0094-8276 (ISSN-L)
  • 1944-8007
OpenAlex
W1979413511
Cited by
161
References
20
Citations by year
2026: 4 · 2025: 5 · 2024: 11 · 2023: 10 · 2022: 10 · 2021: 10 · 2020: 6 · 2019: 9 · 2018: 5 · 2017: 11 · 2016: 5 · 2015: 4 · 2014: 3 · 2013: 5 · 2012: 3
FWCI
6.48
Type
journal article
Language
en
Open access
closed
Locations
  • Geophysical Research Letters (publishedVersion)
  • Oceanographic literature review
Topics
  • Physical Sciences › Earth and Planetary Sciences › Geochemistry and Petrology › Geochemistry and Elemental Analysis
  • Physical Sciences › Earth and Planetary Sciences › Oceanography › Marine and coastal ecosystems
  • Physical Sciences › Earth and Planetary Sciences › Paleontology › Paleontology and Stratigraphy of Fossils
Keywords
yttrium, lanthanides, rare earth elements, North Pacific, seawater, depth profiles, metal scavenging, particulate matter, carbonate complexation, rare earth fractionation, suspended particulate matter, ionic radius, stability constants

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