Climatic impact on Al, K, Sc and Ti in marine sediments: Evidence from ODP Site 1144, South China Sea

doi:doi:10.1594/PANGAEA.694721

Climatic impact on Al, K, Sc and Ti in marine sediments: Evidence from ODP Site 1144, South China Sea

Al, K, Sc and Ti concentrations of the terrestrial material-dominant sediments from ODP site 1144 were reported. Comparison between the bulk and the acid-leached sediments indicates that about 20~30% of the Al, K and Sc in the bulk sediments are not hosted in terrestrial detritus, rather they are of authigenic origin. However, authigenic Ti is negligible. The results indicate that Ti rather than Al is the best proxy for terrestrial materials. Significant climate controls are displayed in the Al/Ti, K/Ti and Sc/Ti variation patterns both for the bulk and the acid leached sediments. Such variation patterns can be mainly accounted for in terms of climate change in their provenance areas in South China. Elevated Al/Ti, K/Ti and Sc/Ti ratios during interglacial periods indicate that chemical weathering then was stronger than during glacial periods, which might be related to a more humid climate in interglacial periods.

Data and Resources

This dataset has no data

Cite this as

Wei, Gangjian, Liu, Ying, Li, Xianhua, Shao, Lei, Liang, Xirong (2003). Dataset: Climatic impact on Al, K, Sc and Ti in marine sediments: Evidence from ODP Site 1144, South China Sea. https://doi.org/10.1594/PANGAEA.694721

DOI retrieved: 2003

Additional Info

Field	Value
Imported on	November 30, 2024
Last update	November 30, 2024
License	CC-BY-3.0
Source	https://doi.org/10.1594/PANGAEA.694721
Author	Wei, Gangjian
Given Name	Gangjian
Family Name	Wei
More Authors	Liu, Ying Li, Xianhua Shao, Lei Liang, Xirong
Source Creation	2003
Publication Year	2003
Resource Type	application/zip - filename: Wei_geochemistry
Subject Areas	Name: Chemistry Name: Lithosphere
Related Identifiers	Title: Climatic impact on Al, K, Sc and Ti in marine sediments: Evidence from ODP Site 1144, South China Sea Identifier: https://doi.org/10.2343/geochemj.37.593 Type: DOI Relation: IsSupplementTo Year: 2003 Source: Geochemical Journal Authors: Wei Gangjian , Liu Ying , Li Xianhua , Shao Lei , Liang Xirong .