EVIDENCE OF STRUCTURE-H HYDRATE, GULF-OF-MEXICO CONTINENTAL-SLOPE

被引：103

作者：

SASSEN, R

MACDONALD, IR

机构：

[1] Geochemical and Environmental Research Group (GERG), Texas A and M University, College Station

来源：

ORGANIC GEOCHEMISTRY | 1994年 / 22卷 / 06期

关键词：

GAS HYDRATE; STRUCTURE H HYDRATE; HYDROCARBONS; GAS CHROMATOGRAPHY; GAS VENTS; GULF OF MEXICO;

D O I：

10.1016/0146-6380(94)90036-1

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

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-i-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.

引用

页码：1029 / 1032

页数：4

共 13 条

[1] THERMOGENIC GAS HYDRATES IN THE GULF OF MEXICO [J].