Methane hydrate estimates from the chloride and oxygen isotopic anomalines examples from the blake ride and nankai trough sediments

摘要

Oxygen isotopic fractionation between gas hydrate and ambient water is determined as #alpah# GH-IW chemical bounds 1.0037 at 12-16 deg C and 31 Mpa, on the basis of direct measure,ments of gas hydrate-derivd waters and ambient pore waters recovered from the Blake FRidge during ODP Leg 164. Oxygten isotopic anomalies give us the amount of gas hydrate of 7 to 9