FN Archimer Export Format
PT J
TI Zinc isotopes as tracers of anthropogenic sources and biogeochemical processes in contaminated mangroves
BT 
AF FERREIRA ARAUJO, Daniel
   MACHADO, Wilson
   WEISS, Dominik
   MULHOLLAND, Daniel S.
   GARNIER, Jeremie
   SOUTO-OLIVEIRA, Carlos E.
   BABINSKI, Marly
AS 1:1,2,3;2:4;3:5;4:6;5:3;6:1;7:1;
FF 1:PDG-RBE-BE-LBCM;2:;3:;4:;5:;6:;7:;
C1 Univ Sao Paulo, Inst Geociencias, Rua Lago 562,Cidade Univ, Sao Paulo, Brazil.
   IFREMER, Lab Biogeochim Contaminants Metall, Ctr Atlant, F-44311 Nantes 3, France.
   Univ Brasilia, LMI OCE, IRD, Campus Darcy Ribeiro, Brasilia, DF, Brazil.
   Univ Fed Fluminense, Dept Geoquim, Campus Valonguinho, Niteroi, RJ, Brazil.
   Imperial Coll London, Earth Sci & Engn, London, England.
   Univ Fed Tocantins, Dept Quim Ambiental, Rua Badejos,Lote 7,Chacaras 69-72, Gurupi, Tocantins, Brazil.
C2 UNIV SAO PAULO, BRAZIL
   IFREMER, FRANCE
   UNIV BRASILIA, BRAZIL
   UNIV FED FLUMINENSE, BRAZIL
   IMPERIAL COLL LONDON, UK
   UNIV FED TOCANTINS, BRAZIL
SI NANTES
SE PDG-RBE-BE-LBCM
IN WOS Ifremer jusqu'en 2018
   copubli-europe
   copubli-int-hors-europe
   copubli-sud
IF 2.894
TC 28
UR https://archimer.ifremer.fr/doc/00440/55196/56660.pdf
LA English
DT Article
DE ;Metal transition isotopes;Metal contamination;Mass spectrometry;Coastal ecosystems;Mangrove leaves
AB Recent work has shown that variations in zinc (Zn) isotope ratios enable us to identify contamination sources in the terrestrial environment and uptake processes in higher plants. Here in this study, we demonstrate that this also holds true for mangrove forests, which play an important role in the biogeochemical cycling of metals in tropical coastal ecosystems and that are seriously threatened by anthropogenic pollution. To this end, we determined zinc concentration and isotope composition (expressed using the δ66Zn notation relative to the JMC 3-0749-L standard) in sediments and tree leaves collected from a mangrove close to Rio de Janeiro in Brazil. The δ66ZnJMC values of sediments vary between +0.36 and + 0.84‰ and fall on a mixing line between detrital terrestrial sources (characterized with δ66ZnJMC = +0.28 ± 0.12‰, 2σ) and metallurgical ore sources (δ66ZnJMC = +0.86‰ ±0.15‰, 2σ). Leaves of Laguncularia racemose, in contrast, showed δ66ZnJMC values ranging between +0.08 and + 0.23‰, suggesting that processes including uptake, translocation and bioavailability in the rhizosphere control the isotope composition of zinc in the mangrove plant. 
PY 2018
PD AUG
SO Applied Geochemistry
SN 0883-2927
PU Pergamon-elsevier Science Ltd
VL 95
UT 000437294900003
BP 25
EP 32
DI 10.1016/j.apgeochem.2018.05.008
ID 55196
ER

EF