(Table 4) Volume of natural gas within the downhole log-inferred gas-hydrate ...

Sediment depth is given in mbsf. Gas volume calculation assumes a hydrate number of 6.325 (90% gas-filled clathrate), 1 m3 of gas hydrate = 164 m3 free gas at in situ...沉积物深度以mbsf（meters below sea floor，海底以下米数）为单位给出。气体体积计算采用的水合数为6.325（对应90%含气笼形包合物），1立方米天然气水合物等价于原位条件下164立方米游离气……