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Geogenic emission of methane and carbon dioxide at beciu mud volcano, (berca-arbănaşi hydrocarbon-bearing structure, eastern carpathians, Romania)
Author(s)
Language
English
Obiettivo Specifico
4.5. Studi sul degassamento naturale e sui gas petroliferi
Status
Published
JCR Journal
JCR Journal
Peer review journal
Yes
Title of the book
Issue/vol(year)
3 / 7 (2012)
ISSN
1842 - 4090
Publisher
North University of Baia Mare
Pages (printed)
159 - 166
Issued date
July 25, 2012
Abstract
As shown by previously performed flux measurements, the mud volcanoes of Berca-Arbănaşi hydrocarbon-bearing structure in Eastern Carpathians Foredeep, including Pâclele Mari, Pâclele Mici, and
Fierbători, represent a main gas seepage system in Romania, with considerable emissions of methane. The present work completes these gas emission studies by reporting the flux of methane and carbon dioxide at Beciu mud volcano, belonging to the same structure, not measured previously. In total, 78 measurements were carried out in June 2011 (40 on the vents, 34 on the area covered by mud and 4 in the external area, covered by vegetation). Diffuse fluxes from mud were found ranging from 102 to 105 mg CH4 m-2 day-1, and 102-104 mg CO2 m-2 day-1; the emission from individual vents was in the range of 0.014 to 32 t CH4
year-1 and 0.003 to 2.9 t CO2 year-1. These values are comparable with those typically documented for mud volcanoes worldwide. Gas seepage occurs pervasively throughout the muddy cover, even if it appears to be saturated with water. The total emission of CH4 and CO2 from Beciu mud volcano is
conservatively estimated to be at least 190 t year-1 and 35 t year-1, respectively. The Beciu output leads the total CH4 emission from the four Berca mud volcanoes to at least 1350 t year-1, a value comparable with
that reported for a similar number of giant mud volcanoes in Azerbaijan. This work contributed to update the geogenic gas flux data-set of Romania and to extend the global data-set of methane and carbon dioxide emissions from mud volcanoes.
Fierbători, represent a main gas seepage system in Romania, with considerable emissions of methane. The present work completes these gas emission studies by reporting the flux of methane and carbon dioxide at Beciu mud volcano, belonging to the same structure, not measured previously. In total, 78 measurements were carried out in June 2011 (40 on the vents, 34 on the area covered by mud and 4 in the external area, covered by vegetation). Diffuse fluxes from mud were found ranging from 102 to 105 mg CH4 m-2 day-1, and 102-104 mg CO2 m-2 day-1; the emission from individual vents was in the range of 0.014 to 32 t CH4
year-1 and 0.003 to 2.9 t CO2 year-1. These values are comparable with those typically documented for mud volcanoes worldwide. Gas seepage occurs pervasively throughout the muddy cover, even if it appears to be saturated with water. The total emission of CH4 and CO2 from Beciu mud volcano is
conservatively estimated to be at least 190 t year-1 and 35 t year-1, respectively. The Beciu output leads the total CH4 emission from the four Berca mud volcanoes to at least 1350 t year-1, a value comparable with
that reported for a similar number of giant mud volcanoes in Azerbaijan. This work contributed to update the geogenic gas flux data-set of Romania and to extend the global data-set of methane and carbon dioxide emissions from mud volcanoes.
References
Baciu, C. & Etiope, G., 2005, Martinelli, G., Panahi, B.,
(eds.), Mud volcanoes, geodynamics and
seismicity, Chapter 2 – Geodynamic implications
of mud volcanism – Mud volcanoes and seismicity
in Romania, Springer, 77-87.
Baciu, C., Caracausi, A., Etiope, G. & Italiano, F.,
2007, Mud volcanoes and methane seeps in
Romania: main features and gas flux, Annals of
geophysics, 50 (4), 501-511.
Baciu, C., Etiope, G., Cuna, S. & Spulber, L., 2008,
Methane seepage in an urban development area
(Bacău, Romania): origin, extent and hazard,
Geofluids, 8, 311-320.
Bonini, M. & Mazzarini, F., 2010, Mud volcanoes as
potential indicators of regional stress and
pressurized layer depth, Tectonophysics, 494, 32-47.
Ciocârdel, R., 1949, Berca-Beciu-Arbănaşi – The
petroleum region, Geol. Com. Economical and
technique studies, Series A. No.1, 32 pp.
Dimitrov, L., 2003, Mud volcanoes – a significant source of
atmospheric methane, Geo-Mar Lett, 23, 155-161.
Etiope, G., Baciu, C., Caracausi, A., Italiano, F. &
Cosma, C., 2004a, Gas flux to the atmosphere
from mud volcanoes in eastern Romania, Terra
Nova, 16, 179-184.
Etiope, G., Feyzullayev, A., Baciu, C. & Milkov, A.V.,
2004b, Methane emission from mud volcanoes in
eastern Azerbaijan, Geology, 32, 465-468.
Etiope, G. & Milkov, A.V., 2004, A new estimate of
global methane flux from onshore shallow
submarine mud volcanoes to the atmosphere,
Environmental Geology, 46, 997-1002.
Etiope G., Fridriksson T., Italiano F., Winiwarter W.
& Theloke J., 2007. Natural emissions of methane from geothermal and volcanic sources in Europe.
J.Volcanol.Geoth.Res., 165, 76-86.
Etiope G., Lassey K.R., Klusman R.W. & Boschi E.
2008. Reappraisal of the fossil methane budget and
related emission from geologic sources. Geoph.
Res. Lett., 35, L09307,
doi:10.1029/2008GL033623.
Etiope, G., 2009, Natural emissions of methane from
geological seepage in Europe, Atmospheric
Environment, 43, 1430-1443.
Etiope, G., Feyzullayev, A. & Baciu C., 2009,
Terrestrial methane seeps and mud volcanoes: a
global perspective of gas origin, Marine and
Petroleum Geology, 26, 333-344.
Etiope, G. & Klusman, R.W., 2010, Microseepage in
drylands: Flux and implications in the global
atmospheric source/sink budget of methane,
Global and Planetary Change, 72, 265-274
Etiope, G., Baciu, C. & Schoell, M., 2011a, Extreme
methane deuterium, nitrogen and helium
enrichment in natural gas from the Homorod seep
(Romania), Chemical Geology, 280, 89-96
Etiope, G., Nakada, R., Tanaka, K. & Yoshida, N.,
2011b, Gas seepage from Tokamachi mud
volcanoes, onshore Niigata Basin (Japan): Origin,
post-genetic alterations and CH4-CO2 fluxes,
Applied Geochemistry, 26, 348-359.
Filipescu, M.N. & Humă, I., 1979, Geochemistry of
natural gases, Academiei R. S., Romania, Publ.,
House, Bucharest 175 pp. (in Romanian) Hong W.L., Etiope G., Yang T.F. & Chang P.Y. 2012,
Methane flux from miniseepage in mud volcanoes
of SW Taiwan: Comparison with the data from
Italy, Romania, and Azerbaijan, J. Asian Earth
Sci., http://dx.doi.org/10.1016/j.jseaes.2012.02.005
Kopf, A.J., 2002, Significance of mud volcanism, 40 (2),
pp.52, doi:10.1029/2000RG000093
Livingston, G. & Hutchinson, G., 1995, Matson, P.,
Harris, R., (eds.), Biogenic trace gases: Measuring
emissions from soil and water, Chapter 2 -
Enclosure-based measurement of trace gas
exchange: application and source of error.
Methods in Ecology, pp. 14-51. Blackwell Science
Cambridge University Press, London.
Morner, N. A., Etiope, G., 2002, Carbon degassing from
the lithosphere, Global Planet. Change, 33, 185-
203
Peahă, M., 1965, The mud volcanoes from Romania,
Geology, Geophysics, Geography Studies and
research – Geography series, Academy of Socialist
Republic of Romania, 12(2), 193-206
Schoell, M., 1988, Multiple origins of methane in the
Earth, Chemical Geology, 71, 1-10.
Sencu, V., 1985, Mud volcanoes from Berca, Sportturism
Publishing House (in Romanian).
Spulber, L., Etiope, G., Baciu, C., Maloş, C. & Vlad, Ş.
N., 2010, Methane emission from natural gas
seeps and mud volcanoes in Transylvania
(Romania), Geofluids, 10, 463-475
(eds.), Mud volcanoes, geodynamics and
seismicity, Chapter 2 – Geodynamic implications
of mud volcanism – Mud volcanoes and seismicity
in Romania, Springer, 77-87.
Baciu, C., Caracausi, A., Etiope, G. & Italiano, F.,
2007, Mud volcanoes and methane seeps in
Romania: main features and gas flux, Annals of
geophysics, 50 (4), 501-511.
Baciu, C., Etiope, G., Cuna, S. & Spulber, L., 2008,
Methane seepage in an urban development area
(Bacău, Romania): origin, extent and hazard,
Geofluids, 8, 311-320.
Bonini, M. & Mazzarini, F., 2010, Mud volcanoes as
potential indicators of regional stress and
pressurized layer depth, Tectonophysics, 494, 32-47.
Ciocârdel, R., 1949, Berca-Beciu-Arbănaşi – The
petroleum region, Geol. Com. Economical and
technique studies, Series A. No.1, 32 pp.
Dimitrov, L., 2003, Mud volcanoes – a significant source of
atmospheric methane, Geo-Mar Lett, 23, 155-161.
Etiope, G., Baciu, C., Caracausi, A., Italiano, F. &
Cosma, C., 2004a, Gas flux to the atmosphere
from mud volcanoes in eastern Romania, Terra
Nova, 16, 179-184.
Etiope, G., Feyzullayev, A., Baciu, C. & Milkov, A.V.,
2004b, Methane emission from mud volcanoes in
eastern Azerbaijan, Geology, 32, 465-468.
Etiope, G. & Milkov, A.V., 2004, A new estimate of
global methane flux from onshore shallow
submarine mud volcanoes to the atmosphere,
Environmental Geology, 46, 997-1002.
Etiope G., Fridriksson T., Italiano F., Winiwarter W.
& Theloke J., 2007. Natural emissions of methane from geothermal and volcanic sources in Europe.
J.Volcanol.Geoth.Res., 165, 76-86.
Etiope G., Lassey K.R., Klusman R.W. & Boschi E.
2008. Reappraisal of the fossil methane budget and
related emission from geologic sources. Geoph.
Res. Lett., 35, L09307,
doi:10.1029/2008GL033623.
Etiope, G., 2009, Natural emissions of methane from
geological seepage in Europe, Atmospheric
Environment, 43, 1430-1443.
Etiope, G., Feyzullayev, A. & Baciu C., 2009,
Terrestrial methane seeps and mud volcanoes: a
global perspective of gas origin, Marine and
Petroleum Geology, 26, 333-344.
Etiope, G. & Klusman, R.W., 2010, Microseepage in
drylands: Flux and implications in the global
atmospheric source/sink budget of methane,
Global and Planetary Change, 72, 265-274
Etiope, G., Baciu, C. & Schoell, M., 2011a, Extreme
methane deuterium, nitrogen and helium
enrichment in natural gas from the Homorod seep
(Romania), Chemical Geology, 280, 89-96
Etiope, G., Nakada, R., Tanaka, K. & Yoshida, N.,
2011b, Gas seepage from Tokamachi mud
volcanoes, onshore Niigata Basin (Japan): Origin,
post-genetic alterations and CH4-CO2 fluxes,
Applied Geochemistry, 26, 348-359.
Filipescu, M.N. & Humă, I., 1979, Geochemistry of
natural gases, Academiei R. S., Romania, Publ.,
House, Bucharest 175 pp. (in Romanian) Hong W.L., Etiope G., Yang T.F. & Chang P.Y. 2012,
Methane flux from miniseepage in mud volcanoes
of SW Taiwan: Comparison with the data from
Italy, Romania, and Azerbaijan, J. Asian Earth
Sci., http://dx.doi.org/10.1016/j.jseaes.2012.02.005
Kopf, A.J., 2002, Significance of mud volcanism, 40 (2),
pp.52, doi:10.1029/2000RG000093
Livingston, G. & Hutchinson, G., 1995, Matson, P.,
Harris, R., (eds.), Biogenic trace gases: Measuring
emissions from soil and water, Chapter 2 -
Enclosure-based measurement of trace gas
exchange: application and source of error.
Methods in Ecology, pp. 14-51. Blackwell Science
Cambridge University Press, London.
Morner, N. A., Etiope, G., 2002, Carbon degassing from
the lithosphere, Global Planet. Change, 33, 185-
203
Peahă, M., 1965, The mud volcanoes from Romania,
Geology, Geophysics, Geography Studies and
research – Geography series, Academy of Socialist
Republic of Romania, 12(2), 193-206
Schoell, M., 1988, Multiple origins of methane in the
Earth, Chemical Geology, 71, 1-10.
Sencu, V., 1985, Mud volcanoes from Berca, Sportturism
Publishing House (in Romanian).
Spulber, L., Etiope, G., Baciu, C., Maloş, C. & Vlad, Ş.
N., 2010, Methane emission from natural gas
seeps and mud volcanoes in Transylvania
(Romania), Geofluids, 10, 463-475
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