(Table 1) Geochemistry of sediment core NS93-5

DOI

The biogenic-related elements Ca, Sr, Ba, P, Cd, scavenged Al, and Ti were analyzed by inductively coupled plasma mass spectrometry (ICP-MS) and inductively coupled plasma atomic emission spectrometry (ICP-AES) for Core NS93-5 from the west slope of the South China Sea. Terrestrial input as estimated from the accumulation of Ti was higher during glacials than during interglacials. Carbonate accumulation rates are inversely related to those of terrestrial input, suggesting higher production of calcareous phytoplankton during interglacials. The accumulation patterns of authigenic Sr, Ba, P, and Cd match that of carbonate, further indicating higher calcareous phytoplankton production during interglacials. Scavenged Al and excess SiO2, which is related to biogenic opal, exhibit higher accumulation rates during glacials and correspond with changes in terrestrial input. This indicates that terrestrial input driven is important to siliceous phytoplankton production but not for calcareous phytoplankton production. As calcareous phytoplankton is the dominant component of the biogenic sediments in the South China Sea, particularly during interglacials, previous inference of higher productivity in the South China Sea during glacials based on only the biogenic opal proxy needs to be reconsidered.

Supplement to: Wei, Gangjian; Liu, Ying; Li, Xianhua; Chen, Muhong; Wei, Wuchang (2003): High-resolution elemental records from the South China Sea and their paleoproductivity implications. Paleoceanography, 18(2), 1054

Identifier
DOI https://doi.org/10.1594/PANGAEA.841504
Related Identifier IsSupplementTo https://doi.org/10.1029/2002PA000826
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.841504
Provenance
Creator Wei, Gangjian ORCID logo; Liu, Ying ORCID logo; Li, Xianhua; Chen, Muhong; Wei, Wuchang
Publisher PANGAEA
Publication Year 2003
Rights Creative Commons Attribution 3.0 Unported; https://creativecommons.org/licenses/by/3.0/
OpenAccess true
Representation
Resource Type Supplementary Dataset; Dataset
Format text/tab-separated-values
Size 1171 data points
Discipline Earth System Research
Spatial Coverage (112.753 LON, 9.999 LAT); South China Sea