Geochemical composition of inorganic silicate fraction of surface sediment samples collected along a 131.5°W transect in the central Pacific

doi:doi:10.1594/PANGAEA.934692

Geochemical composition of inorganic silicate fraction of surface sediment samples collected along a 131.5°W transect in the central Pacific

This dataset includes neodymium isotope ratios and La, Yb, Sc, and Th concentrations of inorganic silicate fractions of surface sediments from the central Pacific, with relevant sampling information. The aim of the study is to identify latitudinal changes in hemispheric dust provenance. 16 sediment cores were collected along a 131.5°W transect from the equator to 16°N at ~1º intervals using a multiple corer and a piston corer on the R/V Onnuri during KODOS03-03 cruise (2003.07.03-2003.08.01; Chief Scientist: Woong-Seo Kim) and KODOS05-01 cruise (2005.07.17-2005.08.15; Chief Scientist: Woong-Seo Kim). Subsamples were taken at 1 cm intervals from the split cores, and those obtained within the top 10 cm of the cores (usually within the top 3 cm) were used to extract the inorganic silicate fraction. The inorganic silicate fractions of bulk sediments were isolated by sequential dissolution with 25% acetic acid, hot sodium citrate-sodium dithionite solution buffered with sodium bicarbonate, and hot sodium hydroxide solution. The elemental composition of the inorganic silicate fraction was determined using a quadrupole ICP-MS following conventional acid digestion. 143Nd/144Nd ratios were determined via multi-collector thermal ionization mass spectrometer using standard cation exchange techniques.

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Seo, Inah, Kim, Mun Gi, Yoo, Chan Min, Hyeong, Kiseong (2021). Dataset: Geochemical composition of inorganic silicate fraction of surface sediment samples collected along a 131.5°W transect in the central Pacific. https://doi.org/10.1594/PANGAEA.934692

DOI retrieved: 2021

Additional Info

Field	Value
Imported on	November 30, 2024
Last update	November 30, 2024
License	CC-BY-4.0
Source	https://doi.org/10.1594/PANGAEA.934692
Author	Seo, Inah
Given Name	Inah
Family Name	Seo
More Authors	Kim, Mun Gi Yoo, Chan Min Hyeong, Kiseong
Source Creation	2021
Publication Year	2021
Resource Type	text/tab-separated-values - filename: Central-Pacific_Cores_geochem-composition
Subject Areas	Name: Lithosphere
Related Identifiers	Title: Late Cenozoic atmospheric circulation intensity and climatic history recorded by eolian deposition in the eastern Equatorial Pacific Ocean, Leg 138 Identifier: https://doi.org/10.2973/odp.proc.sr.138.132.1995 Type: DOI Relation: References Year: 1995 Source: In: Pisias, NG; Mayer, LA; Janecek, TR; Palmer-Julson, A; van Andel, TH (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program) Authors: Hovan Steven A , Hovan Steven A , Seo Inah , Kim Mun Gi , Yoo Chan Min , Hyeong Kiseong , Taylor Stuart Ross , McLennan Scott M . Title: Late Cenozoic eolian dust accumulation in the eastern equatorial Pacific Ocean Identifier: https://doi.org/10.1594/PANGAEA.807836 Type: DOI Relation: References Year: 1995 Authors: Hovan Steven A , Hovan Steven A , Seo Inah , Kim Mun Gi , Yoo Chan Min , Hyeong Kiseong , Taylor Stuart Ross , McLennan Scott M . Title: Geochemically Defined Mean Position of the Intertropical Convergence Zone in the Central Pacific Identifier: https://doi.org/10.1029/2021GL094432 Type: DOI Relation: References Year: 2021 Source: Geophysical Research Letters Authors: Hovan Steven A , Hovan Steven A , Seo Inah , Kim Mun Gi , Yoo Chan Min , Hyeong Kiseong , Taylor Stuart Ross , McLennan Scott M . Title: The Continental Crust: Its Composition and Evolution Type: DOI Relation: References Year: 1985 Source: Blackwell Scientific Publications, Oxford Authors: Hovan Steven A , Hovan Steven A , Seo Inah , Kim Mun Gi , Yoo Chan Min , Hyeong Kiseong , Taylor Stuart Ross , McLennan Scott M .