FN Archimer Export Format
PT J
TI Metal partitioning after in situ filtration at deep-sea vents of the Lucky Strike hydrothermal field (EMSO-Azores, Mid-Atlantic Ridge, 37°N)
BT 
AF Cotte, Laura
   Chavagnac, V.
   Pelleter, Ewan
   Laës-Huon, A.
   Cathalot, Cecile
   Dulaquais, Gabriel
   Riso, Ricardo
   Sarradin, Pierre-Marie
   Waeles, Mathieu
AS 1:1,2;2:3;3:4;4:5;5:4;6:1;7:1;8:2;9:1;
FF 1:PDG-REM-EEP-LEP;2:;3:PDG-REM-GM-LCG;4:;5:PDG-REM-GM-LCG;6:;7:;8:PDG-REM-EEP;9:;
C1 Univ Brest, CNRS, IRD, Ifremer, LEMAR, F-29280, Plouzane, France
   Laboratoire Environnement Profond (LEP/EEP/REM), Ifremer, ZI de La Pointe Du Diable, CS 10070, 29280, Plouzané, France
   Laboratoire Géosciences Environnement Toulouse, GET UMR-CNRS 5563, Université de Toulouse, 31400, Toulouse, France
   Laboratoire Cycle Géochimique et Ressources (LCG/GM/REM), Ifremer, ZI de La Pointe Du Diable, CS 10070, 29280, Plouzané, France
   Laboratoire Détection, Capteurs et Mesures (DCM/RDT/REM), Ifremer, ZI de La Pointe Du Diable, CS 10070, 29280, Plouzané, France
C2 UBO, FRANCE
   IFREMER, FRANCE
   UNIV TOULOUSE, FRANCE
   IFREMER, FRANCE
   IFREMER, FRANCE
SI BREST
SE PDG-REM-EEP-LEP
   PDG-REM-GM-LCG
   PDG-REM-EEP
UM LEMAR
IN WOS Ifremer UPR
   WOS Cotutelle UMR
   copubli-france
   copubli-univ-france
IF 2.955
TC 6
UR https://archimer.ifremer.fr/doc/00598/71060/93513.pdf
LA English
DT Article
CR MOMARSAT : MONITORING THE MID ATLANTIC RIDGE
   MOMARSAT2014
   MOMARSAT2015
   MOMARSAT2016
BO Pourquoi pas ?
   L'Atalante
DE ;Deep-sea vents;Hydrothermal;Metal;Mixing gradient;Precipitation;In-situ filtration
AB Metal partitioning between the dissolved and particulate phases is still poorly constrained within the early mixing of hydrothermal fluids and deep seawater. In this study, in situ filtration has been used to collect early buoyant plume fluids. This has provided the unique opportunity to reassess precisely metal partitioning along the mixing gradient by limiting chemical exchange processes between the dissolved (<0.45 μm) and particulate (>0.45 μm) phases during sampling. We report on the partitioning of three major metals (Fe, Cu, Zn) in the early buoyant plume of six black and clear smokers from the Lucky Strike hydrothermal field (37°N, MAR; EMSO-Azores deep sea observatory). We show that chemical changes are limited in the warmest part of the plume [50–150°C, dMn > 40 μM; dilution factor (DF) of ~1–10 by NADW] as metal partitioning displays a chemical signature similar to the end-member one. However, as the dilution ratio between the hydrothermal fluid and North-Atlantic Deep-water (NADW) increases (4–50°C, dMn < 40 μM; DF of 10–100 by NADW), metal partitioning is affected by different precipitation and oxidation processes. Molar ratios normalized to Fe in the particles highlight the onset of Fe oxides formation, the precipitation of barite and the decreasing contribution of sulfide minerals (mainly Cu–Fe sulfides and sphalerite/wurtzite) along with fluid dilution. 
PY 2020
PD MAR
SO Deep-sea Research Part I-oceanographic Research Papers
SN 0967-0637
PU Elsevier BV
VL 157
UT 000523712800006
DI 10.1016/j.dsr.2019.103204
ID 71060
ER

EF