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Gas hydrates—geological perspective and global change
Abstract
Natural gas hydrates occur worldwide in polar regions, normally associated with onshore and offshore permafrost, and in sediment of outer continental and insular margins. The total amount of methane in gas hydrates likely exceeds 10 19 g of methane carbon. Three aspects of gas hydrates are important: their fossil fuel resource potential, their role as a submarine geohazard, and their effects on global climate change. Because gas hydrates represent a large amount of methane within 2000 m of the Earth's surface, they are considered to be an unconventional, unproven source of fossil fuel. Because gas hydrates are metastable, changes of pressure and temperature affect their stability. Destabilized gas hydrates beneath the seafloor lead to geologic hazards such as submarine slumps and slides, examples of which are found worldwide. Destabilized gas hydrates may also affect climate through the release of methane, a “greenhouse” gas, which may enhance global warming and be a factor in global climate change.
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Cited by
Potential effects of gas hydrate on human welfare
Kvenvolden, K. A. (1999) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.96.7.3420 · Cited by 555
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D'Hondt, S., Rutherford, S., & Spivack, A. J. (2002) · Science · doi:10.1126/science.1064878 · Cited by 529
Kennedy, M. J., Christie-Blick, N., & Sohl, L. E. (2001) · Geology · doi:10.1130/0091-7613(2001)029<0443:apccai>2.0.co;2 · Cited by 386
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Jørgensen, B. B. (2006) · Marine Geochemistry · doi:10.1007/3-540-32144-6_5 · Cited by 270
Young people's burden: requirement of negative CO 2 emissions
Hansen, J., Sato, M., Kharecha, P., von Schuckmann, K., Beerling, D. J., Cao, J., Marcott, S., Masson-Delmotte, V., Prather, M. J., Rohling, E. J., et al. (2017) · Earth System Dynamics · doi:10.5194/esd-8-577-2017 · Cited by 266
Metadata
- Authors
- Kvenvolden, K. A.
- Venue
- Reviews of Geophysics
- Publisher
- American Geophysical Union (AGU)
- Published
- 1993-05
- Volume
- 31
- Issue
- 2
- Pages
- 173-187
- ISSN
- 0096-1043 (ISSN-L)
- 8755-1209
- 1944-9208
- OpenAlex
- W2122895208
- Cited by
- 1,533
- References
- 0
- FWCI
- 15.96
- Type
- journal article
- Language
- en
- Open access
- closed
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