论文信息 - Evidence of structure-H hydrate, Gulf of Mexico Continental slope

Evidence of structure-H hydrate, Gulf of Mexico Continental slope

Abstract A research submarine was used to sample an amber-colored gas hydrate exposed on the sea-floor at 540 m water depth in the Gulf of Mexico continental slope, offshore Louisiana. The hydrate composition is novel for a natural occurrence because i -C 5 comprises 41.1% of the total C 1 –C 5 hydrocarbon distribution. The relative abundance of i -C 5 is consistent with an hexagonal (H) lattice structure that is capable of enclosing larger hydrocarbon molecules than either structure I or II hydrates. Structure H hydrate, which has not been identified previously in nature, coexists with structure II hydrate on the Gulf slope.

Ian R. MacDonald | R. Sassen | I. MacDonald | Roger Sassen

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