Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/8869
DC Field | Value | Language |
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dc.contributor.authorall | Parks, M. M.; COMET+,Department of Earth Sciences,Oxford,OX13AN,UK | en |
dc.contributor.authorall | Caliro, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia | en |
dc.contributor.authorall | Chiodini, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia | en |
dc.contributor.authorall | Pyle, D. M.; COMET+,Department of Earth Sciences,Oxford,OX13AN,UK | en |
dc.contributor.authorall | Mather, T. A.; COMET+,Departmentb of Earth Sciences,Oxford,OX13AN,UK | en |
dc.contributor.authorall | Berlo, K.; COMET+,Department of Earth Sciences,Oxford,OX13AN,UK | en |
dc.contributor.authorall | Edmonds, M.; COMET+,Department of EarthSciences,Cambridge,CB23EQ,UK | en |
dc.contributor.authorall | Biggs, J.; COMET+,School of Earth Sciences,UniversityofBristol,BristolBS81RJ,UK | en |
dc.contributor.authorall | Nomikou, P.; Department of Geology and Geoenvironment,University of Athens,Athens,Greece | en |
dc.contributor.authorall | Raptakis, C.; Higher Geodesy Laboratory,National Technical University,Athens,Greece | en |
dc.date.accessioned | 2014-01-14T14:20:47Z | en |
dc.date.available | 2014-01-14T14:20:47Z | en |
dc.date.issued | 2013 | en |
dc.identifier.uri | http://hdl.handle.net/2122/8869 | en |
dc.description.abstract | Between January 2011 and April 2012, Santorini volcano (Greece) experienced a period of unrest characterised by the onset of detectable seismicity and caldera-wide uplift. This episode of inflation represented the first sizeable intrusion of magma beneath Santorini in the past 50 years. We employ a new approach using 222 Rn– δ 13 C systematics to identify and quantify the source of diffuse degassing at Santorini during the period of renewed activity. Soil CO 2 flux measurements were made across a network of sites on Nea Kameni between September 2010 and January 2012. Gas samples were collected in April and September 2011 for isotopic analysis of CO 2 ( δ 13 C), and radon detectors were deployed during September 2011 to measure ( 222 Rn). Our results reveal a change in the pattern of degassing from the summit of the volcano (Nea Kameni) and suggest an increase in diffuse CO 2 emissions between September 2010 and January 2012. High-CO 2 -flux soil gas samples have δ 13 C ∼ 0 .Using this value and other evidence from the literature we conclude that these CO 2 emissions from Santorini were a mixture between CO 2 sourced from magma, and CO 2 released by the thermal or metamorphic breakdown of crustal limestone. We suggest that this mixing of magmatic and crustal carbonate sources may account more broadly for the typical range of δ 13 CvaluesofCO 2 (from ∼− 4 to ∼+ 1 )in diffuse volcanic and fumarole gas emissions around the Mediterranean, without the need to invoke unusual mantle source compositions. At Santorini a mixing model involving magmatic CO 2 (with δ 13 C of − 3 ± 2 and elevated ( 222 Rn)/CO 2 ratios ∼ 10 5 –10 6 Bqkg − 1 )andCO 2 released from decarbonation of crustal limestone (with ( 222 Rn)/CO 2 ∼ 30–300 Bqkg − 1 ,and δ 13 Cof + 5 ) can account for the δ 13 C and ( 222 Rn)/CO 2 characteristics of the ‘high flux’ gas source. This model suggests ∼ 60% of the carbon in the high flux deep CO 2 end member is of magmatic origin. This combination of δ 13 Cand( 222 Rn) measurements has potential to quantify magmatic and crustal contributions to the diffuse outgassing of CO 2 in volcanic areas, especially those where breakdown of crustal limestone is likely to contribute significantly to the CO 2 flux | en |
dc.language.iso | English | en |
dc.publisher.name | Elsevier Science Limited | en |
dc.relation.ispartof | Earth and planetary science letters | en |
dc.relation.ispartofseries | 377-378 (2013) | en |
dc.subject | volcanic unrest | en |
dc.subject | soil gas measurements | en |
dc.subject | carbon isotopic analysis | en |
dc.subject | magmatic degassing | en |
dc.title | Distinguishing contributions to diffuse CO2 emissions in volcanic areas from magmatic degassing and thermal decarbonation using soil gas 222Rn–δ13 C systematics: Applicationto Santorini volcano,Greece | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | 180-190 | en |
dc.subject.INGV | 03. Hydrosphere::03.02. Hydrology::03.02.04. Measurements and monitoring | en |
dc.subject.INGV | 04. Solid Earth::04.04. Geology::04.04.12. Fluid Geochemistry | en |
dc.subject.INGV | 04. Solid Earth::04.08. Volcanology::04.08.01. Gases | en |
dc.subject.INGV | 04. Solid Earth::04.08. Volcanology::04.08.07. Instruments and techniques | en |
dc.identifier.doi | 10.1016/j.epsl.2013.06.046 | en |
dc.description.obiettivoSpecifico | 1.2. TTC - Sorveglianza geochimica delle aree vulcaniche attive | en |
dc.description.obiettivoSpecifico | 2.4. TTC - Laboratori di geochimica dei fluidi | en |
dc.description.obiettivoSpecifico | 4.5. Studi sul degassamento naturale e sui gas petroliferi | en |
dc.description.journalType | JCR Journal | en |
dc.description.fulltext | restricted | en |
dc.relation.issn | 0012-821X | en |
dc.relation.eissn | 1385-013X | en |
dc.contributor.author | Parks, M. M. | en |
dc.contributor.author | Caliro, S. | en |
dc.contributor.author | Chiodini, G. | en |
dc.contributor.author | Pyle, D. M. | en |
dc.contributor.author | Mather, T. A. | en |
dc.contributor.author | Berlo, K. | en |
dc.contributor.author | Edmonds, M. | en |
dc.contributor.author | Biggs, J. | en |
dc.contributor.author | Nomikou, P. | en |
dc.contributor.author | Raptakis, C. | en |
dc.contributor.department | COMET+,Department of Earth Sciences,Oxford,OX13AN,UK | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia | en |
dc.contributor.department | COMET+,Department of Earth Sciences,Oxford,OX13AN,UK | en |
dc.contributor.department | COMET+,Departmentb of Earth Sciences,Oxford,OX13AN,UK | en |
dc.contributor.department | COMET+,Department of Earth Sciences,Oxford,OX13AN,UK | en |
dc.contributor.department | COMET+,Department of EarthSciences,Cambridge,CB23EQ,UK | en |
dc.contributor.department | COMET+,School of Earth Sciences,UniversityofBristol,BristolBS81RJ,UK | en |
dc.contributor.department | Department of Geology and Geoenvironment,University of Athens,Athens,Greece | en |
dc.contributor.department | Higher Geodesy Laboratory,National Technical University,Athens,Greece | 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 | Nordic Volcanological Center, Institute of Earth Sciences, University of Iceland | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OV, Napoli, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Bologna, Bologna, Italia | - |
crisitem.author.dept | Earth Science Department, University of Oxford, UK | - |
crisitem.author.dept | Department of Earth Sciences, University of Oxford | - |
crisitem.author.dept | McGill University | - |
crisitem.author.dept | Montserrat Volcano Observatory, Montserrat, West Indies | - |
crisitem.author.dept | Higher Geodesy Laboratory,National Technical University,Athens,Greece | - |
crisitem.author.orcid | 0000-0002-1793-5633 | - |
crisitem.author.orcid | 0000-0002-8522-6695 | - |
crisitem.author.orcid | 0000-0002-0628-8055 | - |
crisitem.author.orcid | 0000-0003-4259-7303 | - |
crisitem.author.orcid | 0000-0003-1243-137X | - |
crisitem.author.orcid | 0000-0002-4855-039X | - |
crisitem.author.orcid | 0000-0001-8842-9730 | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.classification.parent | 03. Hydrosphere | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.classification.parent | 04. Solid Earth | - |
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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6 Parks et al Santorini degassing EPSL.pdf | 2.29 MB | Adobe PDF |
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