BibTex format
@article{Olivelli:2024:10.1016/j.epsl.2024.118980,
author = {Olivelli, A and Maxence, P and Xu, H and Kreissig, K and Coles, B and Moore, R and Bridgestock, L and Rijkenberg, M and Middag, R and Lohan, M and Weiss, D and Rehkamper, M and van, de Flierdt T},
doi = {10.1016/j.epsl.2024.118980},
journal = {Earth and Planetary Science Letters},
title = {Vertical transport of anthropogenic lead by reversible scavenging in the South Atlantic Ocean},
url = {http://dx.doi.org/10.1016/j.epsl.2024.118980},
volume = {646},
year = {2024}
}
RIS format (EndNote, RefMan)
TY - JOUR
AB - Stable lead (Pb) isotopes have been regarded as tracers of ocean circulation, both in the present time and geological past. Here we present a new dataset of seawater Pb concentrations and isotope compositions for ten depth profiles from the South Atlantic Ocean (GEOTRACES cruises GA02 and GA10). By comparing Pb isotope data collected on the two cruises, and by modelling the distribution of Pb with an extended optimum multiparameter analysis, we find evidence of vertical transport of anthropogenic Pb pollution due to reversible scavenging. Surface to depth transfer of polluted Pb is aided by high suspended particulate matter loads at the Brazil – Malvinas Confluence and along ∼40°S in the South Atlantic. Overall, our findings caution the use of Pb isotope ratios as ventilation tracers in the South Atlantic and emphasize the importance of particle-seawater interaction for biogeochemical cycles.
AU - Olivelli,A
AU - Maxence,P
AU - Xu,H
AU - Kreissig,K
AU - Coles,B
AU - Moore,R
AU - Bridgestock,L
AU - Rijkenberg,M
AU - Middag,R
AU - Lohan,M
AU - Weiss,D
AU - Rehkamper,M
AU - van,de Flierdt T
DO - 10.1016/j.epsl.2024.118980
PY - 2024///
SN - 0012-821X
TI - Vertical transport of anthropogenic lead by reversible scavenging in the South Atlantic Ocean
T2 - Earth and Planetary Science Letters
UR - http://dx.doi.org/10.1016/j.epsl.2024.118980
UR - https://www.sciencedirect.com/science/article/pii/S0012821X24004126
UR - http://hdl.handle.net/10044/1/114473
VL - 646
ER -