2-10　バイカル湖天然ガスハイドレートのゲストガス安定同位体分別

抄録

In the framework of MHP project between Russia, Belgium, and Japan, natural gas hydrates have been discovered and retrieved at Lake Baikal. In the present study, we focus the isotopic difference in methane between hydrate-bound and sediment gases, indicating the condition of natural gas hydrates. Based on the results of hydrogen and carbon isotope difference at the formation of synthetic methane hydrate, we expected the places where the supply of natural gas from deeper sediment layer stops and the crystals start to dissociate.