Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/3243
DC FieldValueLanguage
dc.contributor.authorallWiersberg, T.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italiaen
dc.contributor.authorallSomma, R.en
dc.contributor.authorallRocco, A.en
dc.contributor.authorallDe Rosa, M.en
dc.contributor.authorallZimmer, M.en
dc.contributor.authorallQuattrocchi, F.en
dc.contributor.authorallDe Natale, G.en
dc.contributor.authorallDe Natale, P.en
dc.contributor.editorallEGU General Assemblyen
dc.date.accessioned2007-12-13T18:24:48Zen
dc.date.available2007-12-13T18:24:48Zen
dc.date.issued2007-04en
dc.identifier.urihttp://hdl.handle.net/2122/3243en
dc.description.abstractTemperature measurements and gas extraction were done at the fumarole very close to the “Bocca Grande”. The temperature measurements were performed with a temperature probe (K-type thermocouple), which was let about 30 cm into the fumarole. For better comparison of temperature and gas data, the gas tube was directly connected with the temperature probe, to make sure that temperature measurement and gas extraction were carried out at the same place. After having adjusted a continuous gas flow with diaphragm pump and a needle valve, the gas was piped through a 10 m Teflon© tube for more than 40 hours. The gas phase primary consists of water gas, which was condensed in a trap, installed in a refrigerator. The amount of water in the trap was determined in regular intervals (every 3-4 hours). At the beginning of the monitoring experiment, the Teflon© tube was heated in order to avoid condensation of the water in the tube before getting trapped. Although the tube was not heated for the whole time of the experiment, it turns out that the amount of water, condensed in the water trap per hour, does not significantly change when the tube was not heated. Hence, the amount of water, condensing in the tube before getting trapped, seems negligible. The remaining, almost water-free gas phase was finally dried over Fe in a filter, and then continuously analysed with a quadrupole mass spectrometer (Balzers Omnistar) for the following components: H2, H2S, CH4, N2, O2, Ar, He, and CO2. To make sure that the final drying process does not influence the gas composition in particular for H2 and H2S, a comparison measurement was done without the filter, which only revealed somewhat higher water content. During the second half of the monitoring, additionally a laser-optical CO2 sensor was installed (not shown in the sketch). Gas samples were taken from the gas line for laboratory gas-chromatographic analysis.en
dc.description.sponsorshipEGU Genaral Assemblyen
dc.language.isoEnglishen
dc.relation.ispartofProceedings European Geoscience Union (EGU) General Assembly 2007, Wien, Austria, 15-30 April, 2007. (CD-ROM).en
dc.subjectPhlagrean Fields, Pozzuoli Soffionissimo fumaroleen
dc.subjectContinuous Mass specrometry monitoringen
dc.titleContinuous in-situ measurements of gases (H2, H2S, CH4, N2, O2, He and CO2) at the fumarole “Soffionissimo” (Solfatara volcano, Southern Italy).en
dc.typeExtended abstracten
dc.description.statusPublisheden
dc.subject.INGV04. Solid Earth::04.05. Geomagnetism::04.05.08. Instruments and techniquesen
dc.description.ConferenceLocationVienna, Austriaen
dc.description.obiettivoSpecifico4.5. Degassamento naturaleen
dc.description.fulltextopenen
dc.contributor.authorWiersberg, T.en
dc.contributor.authorSomma, R.en
dc.contributor.authorRocco, A.en
dc.contributor.authorDe Rosa, M.en
dc.contributor.authorZimmer, M.en
dc.contributor.authorQuattrocchi, F.en
dc.contributor.authorDe Natale, G.en
dc.contributor.authorDe Natale, P.en
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italiaen
item.openairetypeExtended abstract-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextopen-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OV, Napoli, Italia-
crisitem.author.deptIstituto Nazionale di Ottica Applicata, Comprensorio Olivetti, Pozzuoli (NA), Italy-
crisitem.author.deptCNR, Istituto Nazionale di Ottica Applicata, Sezione di Napoli, I-80078 Pozzuoli (NA), Italy-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OV, Napoli, Italia-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OV, Napoli, Italia-
crisitem.author.orcid0000-0002-2227-6054-
crisitem.author.orcid0000-0002-7822-1394-
crisitem.author.orcid0000-0001-8391-2846-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.classification.parent04. Solid Earth-
Appears in Collections:Conference materials
Files in This Item:
File Description SizeFormat
Preliminary reportSolfatara.pdffile pdf of the paper241.89 kBAdobe PDFView/Open
Show simple item record

Page view(s) 50

234
checked on Mar 27, 2024

Download(s)

96
checked on Mar 27, 2024

Google ScholarTM

Check