Major, minor, trace and rare earth elements in sediments of the Bijagos archipelago, Guinea-Bissau
authors Carvalho, L; Figueira, P; Monteiro, R; Reis, AT; Almeida, J; Catry, T; Lourenco, PM; Catry, P; Barbosa, C; Catry, I; Pereira, E; Granadeiro, JP; Vale, C
nationality International
journal MARINE POLLUTION BULLETIN
author keywords Sediments; Bijagos - Guinea-Bissau; Elemental composition; Eu and Ce anomalies
keywords MARINE-SEDIMENTS; UNITED-STATES; CONTAMINATION; BIOAVAILABILITY; ESTUARINE; METALS; WATERS
abstract Sixty sediment samples from four sites in the Bijagos archipelago were characterized for fine fraction, loss on ignition, major, minor and trace elemental composition (Al, Fe, Ca, Mg, Ti, P, Zr, Mn, Cr, Sr, Ba, B, V, Li, Zn, Ni, Pb, As, Co, U, Cu, Cs and Cd), and the elements of the La-Lu series. Element concentrations were largely explained by the Al content and the proportion of fine fraction content, with the exception of Ca and Sr. Sediments showed enhanced Ti, U, Cr, As and Cd concentrations with respect to estimated upper crust values, most likely mirroring a regional signature. Rare earth elements were in deficit relatively to the North American Shale Composite (NASC), mainly in coarser material. No pronounced Ce-anomaly was observed, while Eu-anomalies were positive in most analyzed sediments.
publisher PERGAMON-ELSEVIER SCIENCE LTD
issn 0025-326X
year published 2018
volume 129
issue 2
beginning page 829
ending page 834
digital object identifier (doi) 10.1016/j.marpolbul.2017.10.007
web of science category Environmental Sciences; Marine & Freshwater Biology
subject category Environmental Sciences & Ecology; Marine & Freshwater Biology
unique article identifier WOS:000432510800042
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