S2: Water Rock Interaction (Special Session)

[S2-06] Oceanic and continental alteration fluids recorded in fluid inclusions of carbonate veins in Wadi Dima serpentinite, Oman ophiolite

[Presentation award entry]

*Tomohiro Inukai¹, Tatsuhiko Kawamoto¹, Ohi Shuugo¹, Marguerite Godard² (1. Shizuoka Univ. Sci, 2. Montpellier Univ. CNRS)

Keywords:carbonization, microthermometry, salinity, serpentine, oxygen isotope

Aqueous fluid inclusions are found in carbonate veins in Wadi Dima serpentinite of Oman ophiolite. Type 1 calcite vein is formed in saline hydrothermal fluids under submarine circumstance, whereas Type 2 calcite/dolomite vein is formed in less saline hydrothermal fluids in continental circumstance