10:20 〜 10:35
[S2-04] オマーンオフィオライト地殻―マントル遷移帯 におけるアンチゴライト脈形成と流体流動
「発表賞エントリー」
キーワード:蛇紋岩化反応、オマーンオフィオライト、アンチゴライト、流体流動
Antigorite is an important mineral for the estimation of the pressure/temperature condition during serpentinization. In this study, we investigated completely serpentinized dunite with antigorite veins from the crust-mantle transition zone of the Oman ophiolite. We investigated vein structures, mass transport, and fluid flux during the antigorite vein formation. The results suggest that alkaline fluid moved through the crust-mantle transition zone during the antigorite vein formation.