A Quick-Look Method for Initial Evaluation of Gas Hydrate Stability below Subaqueous Permafrost

被引：5
|
作者：
Tinivella, Umberta [1 ]
Giustiniani, Michela [1 ]
Marin-Moreno, Hector [1 ,2 ]
机构：
[1] OGS Ist Nazl Oceanog & Geofis Sperimentale, Geophys Dept, Borgo Grotta Gigante 42-C, I-34010 Trieste, Italy
[2] Univ Southampton, NOC, Waterfront Campus,European Way, Southampton SO14 3ZH, Hants, England
来源：
GEOSCIENCES | 2019年 / 9卷 / 08期
关键词：
modeling; gas hydrate; subaqueous permafrost; OFFSHORE PERMAFROST; SUBSEA PERMAFROST; METHANE RELEASE; SEA; CLIMATE; SHELF; ZONE; EXPLORATION; THERMOKARST; CHALLENGES;
D O I：
10.3390/geosciences9080329
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
Many studies demonstrated the coexistence of subaqueous permafrost and gas hydrate. Subaqueous permafrost could be a factor affecting the formation/dissociation of gas hydrate. Here, we propose a simple empirical approach that allows estimating the steady-state conditions for gas hydrate stability in the presence of subaqueous permafrost. This approach was derived for pressure, temperature, and salinity conditions typical of subaqueous permafrost in marine (brine) and lacustrine (freshwater) environments.
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页数：13
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