HAL will be down for maintenance from Friday, June 10 at 4pm through Monday, June 13 at 9am. More information
Skip to Main content Skip to Navigation
Journal articles

Influence of dissolved organic matter on rare earth elements and yttrium distributions in coastal waters

Abstract : Data collected during this study indicate that dissolved Y and REE (rare earth element) behaviour can be monitored through shale-normalised ratios. Relationships occurring between these ratios suggest that leaching from lithogenic materials is the main source of REE in the studied area. This process involves riverine detrital matter in the inner area of the Gulf of Palermo. Features of shale-normalised patterns and the relationship recognised between dissolved Fe and Y/Ho suggest that REE are released from Fe-rich coatings of atmospheric dust. Observed similarities between dissolved Fe and chlorophyll- content suggest that leaching of Fe-rich atmospheric particulates induces a fertilisation of shallow water layers influencing the dissolved organic content. In turn, the increasing chlorophyll- content causes a progressive decrease in amplitude of the negative Ce anomaly in seawater that is also observed in water in the Central Mediterranean Sea, suggesting that organic matter generally plays a key role in REE behaviour at the solid-liquid interface. Shale-normalised REE features recognised in suspended particulate matter (SPM) indicate the occurrence of three different fractions from lithogenic matter, biogenic carbonates and authigenic components, respectively. The latter is formed during REE scavenging onto the surface of detrital biogenic particles and is mainly recognised in inner gulf waters
Document type :
Journal articles
Complete list of metadata

Contributor : Margaret Lartaud Connect in order to contact the contributor
Submitted on : Tuesday, February 21, 2012 - 11:22:44 AM
Last modification on : Tuesday, October 19, 2021 - 7:00:52 PM




Paolo Censi, Pierpaolo Zuddas, L. A. Randazzo, F. Saiano, S. Mazzola, et al.. Influence of dissolved organic matter on rare earth elements and yttrium distributions in coastal waters. Chemistry and Ecology, Taylor & Francis, 2010, 26 (2), pp.123-135. ⟨10.1080/02757541003627720⟩. ⟨insu-00672433⟩



Record views