Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/3853| DC Field | Value | Language |
|---|---|---|
| dc.contributor.authorall | Etiope, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia | en |
| dc.contributor.authorall | Lassey, K. R.; National Institute of Water and Atmospheric Research, Wellington, New Zealand | en |
| dc.contributor.authorall | Klusman, R. W.; Department of Chemistry and Geochemistry, Colorado School of Mines, Golden, Colorado, USA | en |
| dc.contributor.authorall | Boschi, E.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione AC, Roma, Italia | en |
| dc.date.accessioned | 2008-05-14T06:32:56Z | en |
| dc.date.available | 2008-05-14T06:32:56Z | en |
| dc.date.issued | 2008-05 | en |
| dc.identifier.uri | http://hdl.handle.net/2122/3853 | en |
| dc.description.abstract | Converging evidence from new top-down and bottomup estimates of fossil "radiocarbon-free" methane emissions indicates that natural geologic sources account for a substantial component of the atmospheric methane budget. Comparing emission estimates based on atmospheric 14CH4 ("radiomethane") with geologic emissions from seepage, including terrestrial macroseeps, microseepage, marine seeps, and geothermal/volcanic emissions from the Earth’s crust, shows that such "geo-CH4" sources can be conservatively estimated at 53 ± 11 Tg yr 1 globally. This makes geo-CH4 second in importance to wetlands as a natural methane source. Such a new appraisal can easily be accommodated within the uncertainty of the global methane budget as recently compiled, and recognizes the importance of geophysical out-gassing of methane generated within the lithosphere. We propose a new coherent contemporary budget in which 30 ± 5% (based on atmospheric radiomethane measurements) of the global source of 582 ± 87 Tg yr 1 has fossil origin, both natural and anthropogenic. | en |
| dc.language.iso | English | en |
| dc.publisher.name | AGU | en |
| dc.relation.ispartof | Geophysical Research Letters | en |
| dc.relation.ispartofseries | / 35 (2008) | en |
| dc.subject | methane | en |
| dc.subject | greenhouse-gas | en |
| dc.subject | lithosphere degassing | en |
| dc.title | Reappraisal of the fossil methane budget and related emission from geologic sources | en |
| dc.type | article | en |
| dc.description.status | Published | en |
| dc.type.QualityControl | Peer-reviewed | en |
| dc.description.pagenumber | L09307 | en |
| dc.identifier.URL | http://www.agu.org/pubs/crossref/2008/2008GL033623.shtml | en |
| dc.subject.INGV | 03. Hydrosphere::03.04. Chemical and biological::03.04.05. Gases | en |
| dc.identifier.doi | 10.1029/2008GL033623 | en |
| dc.relation.references | Clarke, R. H., and R. W. Cleverly (1991), Leakage and post-accumulation migration, in Petroleum Migration, edited by W. A. England and A. J. Fleet, Geol. Soc. Spec. Publ., 59, 265– 271. Denman, K. L., et al. (2007), Couplings between changes in the climate system and biogeochemistry, in Climate Change 2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, edited by S. Solomon et al., chap. 7, pp. 499 – 587, Cambridge Univ. Press, Cambridge, U.K. Dimitrov, L. (2002), Mud volcanoes—The most important pathway for degassing deeply buried sediments, Earth Sci. Rev., 59, 49–76. Etiope, G. (2004), GEM—Geologic emissions of methane, the missing source in the atmospheric methane budget, Atmos. Environ., 38, 3099– 3100. Etiope, G. (2008), Natural emissions of methane from geological sources in Europe, Atmos. Environ., doi:10.1016/j.atmosenv.2008.03.014, in press. Etiope, G., and R. W. Klusman (2002), Geologic emissions of methane to the atmosphere, Chemosphere, 49, 777– 789. Etiope, G., and R. W. Klusman (2008), Microseepage in drylands: Flux and implications in the global atmospheric source/sink budget of methane, Global Planet. Change, in press. Etiope, G., and A. V. Milkov (2004), A new estimate of global methane flux from onshore and shallow submarine mud volcanoes to the atmosphere, Environ. Geol., 46, 997–1002. Etiope, G., A. Feyzullayev, C. L. Baciu, and A. V. Milkov (2004), Methane emission from mud volcanoes in eastern Azerbaijan, Geology, 32, 465– 468. Etiope, G., G. Papatheodorou, D. Christodoulou, G. Ferentinos, E. Sokos, and P. Favali (2006), Methane and hydrogen sulfide seepage in the NW Peloponnesus petroliferous basin (Greece): Origin and geohazard, AAPG Bull., 90, 701– 713. Etiope, G., G. Martinelli, A. Caracausi, and F. Italiano (2007a), Methane seeps and mud volcanoes in Italy: Gas origin, fractionation and emission to the atmosphere, Geophys. Res. Lett., 34, L14303, doi:10.1029/ 2007GL030341. Etiope, G., T. Fridriksson, F. Italiano, W. Winiwarter, and J. Theloke (2007b), Natural emissions of methane from geothermal and volcanic sources in Europe, J. Volcanol. Geotherm. Res., 165, 76 – 86, doi:10.1016/j.jvolgeores.2007.04.014. Etiope, G., A. V. Milkov, and E. Derbyshire (2008), Did geologic emissions of methane play any role in Quaternary climate change?, Global Planet. Change, 61, 79–88, doi:10.1016/j.gloplacha.2007.08.008. European Environment Agency (2004), Joint EMEP/CORINAIR Atmospheric Emission Inventory Guidebook, 4th ed., Copenhagen. (Available at http://reports.eea.eu.int/EMEPCORINAIR4/en.) Hong, W. L., and T .F. Yang (2007), Methane flux from accretionary prism through mud volcano area in Taiwan: From present to the past, paper presented at 9th International Conference on Gas Geochemistry, Natl. Taiwan Univ., Taipei, Taiwan. Hornafius, J. S., D. Quigley, and B. P. Luyendyk (1999), The world’s most spectacular marine hydrocarbon seeps (Coal Oil Point, Santa Barbara Channel, California): Quantification of emissions, J. Geophys. Res., 104, 20703– 20711. Houweling, S., F. Dentener, and J. Lelieveld (2000), Simulation of preindustrial methane to constrain the global source strength of natural wetlands, J. Geophys. Res., 105, 17243–17255. Judd, A. G. (2004), Natural seabed seeps as sources of atmospheric methane, Environ. Geol., 46, 988– 996. Klusman, R. W., M. E. Jakel, and M. P. LeRoy (1998), Does microseepage of methane and light hydrocarbons contribute to the atmospheric budget of methane and to global climate change?, Assoc. Pet. Geochem. Explor. Bull., 11, 1– 55. Kvenvolden, K. A., and B. W. 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Apanasovich, and F. G. Dadashev (2003), Global gas flux from mud volcanoes: A significant source of fossil methane in the atmosphere and the ocean, Geophys. Res. Lett., 30(2), 1037, doi:10.1029/2002GL016358. Mo¨rner, N.-A., and G. Etiope (2002), Carbon degassing from the lithosphere, Global Planet. Change, 33, 185– 203. Prather, M., et al. (2001) Atmospheric chemistry and greenhouse gases, in Climate Change 2001: The Scientific Basis. Contribution of Working Group I to the Third Assessment Report of the Intergovernmental Panel on Climate Change, edited by J. T. Houghton et al., pp. 239–287, Cambridge Univ. Press, Cambridge, U.K. Quay, P., J. Stutsman, D. Wilbur, A. Snover, E. Dlugokencky, and T. Brown (1999), The isotopic composition of atmospheric methane, Global Biogeochem. Cycles, 13, 445– 461. Ryan, S., E. J. Dlugokencky, P. P. Tans, and M. E. Trudeau (2006), Mauna Loa volcano is not a methane source: Implications for Mars, Geophys. Res. Lett., 33, L12301, doi:10.1029/2006GL026223. Schimel, D., et al. (1996), Radiative forcing of climate change, in Climate Change 1995: The Science of Climate Change, edited by J. T. Houghton et al., pp. 65– 131, Cambridge Univ. Press, Cambridge, U.K. | en |
| dc.description.obiettivoSpecifico | 3.8. Geofisica per l'ambiente | en |
| dc.description.journalType | JCR Journal | en |
| dc.description.fulltext | reserved | en |
| dc.contributor.author | Etiope, G. | en |
| dc.contributor.author | Lassey, K. R. | en |
| dc.contributor.author | Klusman, R. W. | en |
| dc.contributor.author | Boschi, E. | en |
| dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia | en |
| dc.contributor.department | National Institute of Water and Atmospheric Research, Wellington, New Zealand | en |
| dc.contributor.department | Department of Chemistry and Geochemistry, Colorado School of Mines, Golden, Colorado, USA | en |
| dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione AC, Roma, Italia | en |
| item.openairetype | article | - |
| item.cerifentitytype | Publications | - |
| item.languageiso639-1 | en | - |
| item.grantfulltext | restricted | - |
| item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
| item.fulltext | With Fulltext | - |
| crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italia | - |
| crisitem.author.dept | National Institute of Water and Atmospheric Research, Wellington, New Zealand | - |
| crisitem.author.dept | Dept. of Chemistry and Geochemistry, Colorado School of Mines, Golden, Co., 80401, United States | - |
| crisitem.author.orcid | 0000-0001-8614-4221 | - |
| crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
| crisitem.classification.parent | 03. Hydrosphere | - |
| crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
| crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
| Appears in Collections: | Article published / in press | |
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| File | Description | Size | Format | Existing users please Login |
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| Et-Las-Klu-Bos-GRL-fossil.pdf | 165.63 kB | Adobe PDF |
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