S2: Water Rock Interaction (Special Session)

[S2-05] Submarine and subaerial metamorphism recorded in fluid inclusions of carbonates in Wadi Dima serpentinite, Sultanate of Oman

[Presentation award entry]

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

Keywords:carbonization, fluid inclusion, salinity, microthermometry, serpentine

We report two groups of fluid inclusions in carbonates in veined serpentinites in Oman ophiolite complex previously studied by Noël et al. (2018, Lithos): saline fluids (2.7% NaCl) in type 1 carbonates that were formed through submarine hydrothermal alternation, and pure water (0.1% NaCl) in type 2 and 3 carbonates that were formed through continental alternation processes.