講演情報
[R8-15]Occurrence of CH4–N2-bearing aqueous fluid inclusions in jadeite-bearing chlorite–grossular rock from the New Idria serpentinite body, California
*Rio Rio1, Tatsuki Tsujimori1 (1. Tohoku University)
キーワード：
Jadeite、fluid inclusion、nitrogen、methane、serpentine
Primary fluid inclusions in the jadeite-bearing chlorite-grossular rock from the New Idria serpentinite body, central California, were studied and three groups of fluids (mixed CH4–H2O, CH4–N2–H2O, and N2–H2O) were identified. CH4 can correlate to a serpentinization process and N2 was most likely derived from the subducted sediments. This presentation will report the occurrence of the CH4–N2-bearing aqueous fluid inclusions and discuss the possible source of nitrogen.