FN Archimer Export Format
PT J
TI Mineralogy, fluid inclusions and stable isotope study of epithermal Au-Ag-Bi-Te mineralization from the SE Afar Rift (Djibouti)
BT 
AF Moussa, N.
   Boiron, M.C-
   Grassineau, N.V.
   Asael, Dan
   Fouquet, Yves
   Le Gall, Bernard
   Rolet, Joël
   Etoubleau, Joel
   Delacourt, Christophe
AS 1:1,2,3;2:4;3:5;4:6;5:2;6:3;7:3;8:2;9:3;
FF 1:;2:;3:;4:PDG-REM-GM-LGM;5:PDG-REM-GM-LCG;6:;7:;8:PDG-REM-GM-LGM;9:;
C1 IST, Centre d’Etudes et de Recherches de Djibouti, B.P. 486, Djibouti
   IFREMER, Centre de Brest, BP 70, 29280 Plouzané, France
   UMR/CNRS 6538 Géosciences Océan, UBO-IUEM, Place Nicolas Copernic, 29280, Plouzané, France
   GéoRessources, Université de Lorraine, CNRS, CREGU, Boulevard des Aiguillettes, B.P. 70239, F-54506, Vandœuvre-lès-Nancy, France
   Department of Earth Sciences, Royal Holloway University of London, EGHAM Surrey TW20 0EX, UK
   Department of Geology and Geophysics, Yale University, New Haven, CT 06520, USA
C2 CERD, DJIBOUTI
   IFREMER, FRANCE
   UBO, FRANCE
   UNIV LORRAINE, FRANCE
   UNIV ROYAL HOLLOWAY LONDON, UK
   UNIV YALE, USA
SI BREST
SE PDG-REM-GM-LGM
   PDG-REM-GM-LCG
UM LGO
IN WOS Ifremer UPR
   copubli-france
   copubli-europe
   copubli-univ-france
   copubli-int-hors-europe
   copubli-sud
IF 3.868
TC 7
UR https://archimer.ifremer.fr/doc/00494/60528/63991.pdf
LA English
DT Article
DE ;Fluid inclusions;Stable isotopes;Hydrothermal;Epithermal system;SE Afar Rift;Djibouti
AB In this paper, the mineralogy, fluid inclusions and stable isotopes of hydrothermal veins from the SE part of the Afar Rift (Djibouti) were studied. Mineralization occurs as gold-silver in quartz/carbonate veins and is mainly associated with felsic volcanism. The morphologies and textures of quartz show crustiform colloform banding, massive and breccias. Microthermometric measurements were made on quartz-hosted two phases (liquid + vapor) inclusions. Mean homogenization temperature ranges from 150°C to 340°C and ice-melting temperatures range from -0.2°C to - 1.6°C indicating that inclusion solutions contain 0.35 to 2.7 eq. wt. % NaCl. Furthermore, δ18O and δ13C values from calcite range from 3.7 to 26.6 ‰ and -7.5 to 0.3 ‰, respectively. The presence of platy calcite and adularia are consistent with boiling conditions. Our study shows that the deposit of precious-metal deposition occurred at around 250°C and is linked to a fluid generated by the mixture of magmatic fluid, hydrothermal fluid and seawater. 
PY 2019
PD AUG
SO Ore Geology Reviews
SN 0169-1368
PU Elsevier BV
VL 111
UT 000484869200011
DI 10.1016/j.oregeorev.2019.05.002
ID 60528
ER

EF