BEGIN:VCALENDAR VERSION:2.0 PRODID:-//Laboratoire Magmas et Volcans - ECPv6.15.20//NONSGML v1.0//EN CALSCALE:GREGORIAN METHOD:PUBLISH X-WR-CALNAME:Laboratoire Magmas et Volcans X-ORIGINAL-URL:https://lmv.uca.fr X-WR-CALDESC:Évènements pour Laboratoire Magmas et Volcans REFRESH-INTERVAL;VALUE=DURATION:PT1H X-Robots-Tag:noindex X-PUBLISHED-TTL:PT1H BEGIN:VTIMEZONE TZID:Europe/Paris BEGIN:DAYLIGHT TZOFFSETFROM:+0100 TZOFFSETTO:+0200 TZNAME:CEST DTSTART:20160327T010000 END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:+0200 TZOFFSETTO:+0100 TZNAME:CET DTSTART:20161030T010000 END:STANDARD BEGIN:DAYLIGHT TZOFFSETFROM:+0100 TZOFFSETTO:+0200 TZNAME:CEST DTSTART:20170326T010000 END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:+0200 TZOFFSETTO:+0100 TZNAME:CET DTSTART:20171029T010000 END:STANDARD BEGIN:DAYLIGHT TZOFFSETFROM:+0100 TZOFFSETTO:+0200 TZNAME:CEST DTSTART:20180325T010000 END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:+0200 TZOFFSETTO:+0100 TZNAME:CET DTSTART:20181028T010000 END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTART;VALUE=DATE:20170605 DTEND;VALUE=DATE:20170610 DTSTAMP:20260506T170202 CREATED:20170509T160655Z LAST-MODIFIED:20170512T073902Z UID:12854-1496620800-1497052799@lmv.uca.fr SUMMARY:Mike Higgins prof invité Clervolc DESCRIPTION:Michael D. Higgins (Université du Québec à Chicoutimi\, Canada) sera présent au laboratoire du 5 au 9 Juin 2017. URL:https://lmv.uca.fr/agenda/mike-higgins-prof-invite-clervolc/ ATTACH;FMTTYPE=image/jpeg:https://lmv.uca.fr/wp-content/uploads/2017/05/higgins.jpg END:VEVENT BEGIN:VEVENT DTSTART;TZID=Europe/Paris:20170606T140000 DTEND;TZID=Europe/Paris:20170606T150000 DTSTAMP:20260506T170202 CREATED:20170412T121958Z LAST-MODIFIED:20170607T123003Z UID:12728-1496757600-1496761200@lmv.uca.fr SUMMARY:Séminaire de Paolo Sossi DESCRIPTION:Mardi 30 Mai à 14h dans la salle des séminaires (1.10) : Paolo Sossi (IPG Paris) \n  \n \n  \nModerately-volatile element depletion and the formation of the terrestrial planets: Insights from isotopes and experiments \n  \n  \nModerately Volatile Elements (MVEs) in chondritic meteorites vary as a smooth function of their condensation temperatures\, calculated for a gas of nebular composition (Tc). However\, their abundances in differentiated bodies (e.g.\, Earth) do not vary systematically with Tc\, and are variably depleted relative to the solar (CI) composition. Unlike in chondrites\, volatile depletion in planetary bodies may also arise from accretion of volatile-poor material\, evaporation following giant impacts\, core formation and collisional erosion. These processes occur at conditions different to those of the solar nebula\, rendering Tc alone inappropriate in understanding the behaviour and origin of volatile elements in the terrestrial planets. Here\, we adopt a two-pronged experimenal and isotopic approach: \nElement volatilies are measured directly in controlled-atmosphere furnace experiments over a range of oxygen fugacities (fO2) and temperatures. Although most elemental vapour pressures increase at low fO­­2 and high T\, their relative volatilities change with both parameters\, such that they differ significantly from their Tc. As a result\, the signature of volatile depletion occurring under more oxidising conditions (i.e.\, during late-stage planetary accretion) should be distinct from that arising due to nebular depletion. \nHowever\, this relationship is complicated by the dual siderophile/lithophile character of some MVEs\, making it difficult to ascertain whether depletion arose due to core formation or volatile depletion. To that end\, the stable isotopes of heavy elements in planetary basalts may record the fingeprints of such processes. The Fe isotope compositions of inner solar system bodies point to the influence of volatile depletion under nebular conditions\, a view consisent with the Zn isotope composition of the Earth\, which falls on the carbonaceous chondrite array. However\, the step-wise depletion in volatile elements in the Moon\, combined with its heavy Zn isotopes\, suggest that it underwent additional volatile loss under more oxidising conditions\, likely during the giant impact. URL:https://lmv.uca.fr/agenda/seminaire-de-paolo-sossi/ ATTACH;FMTTYPE=image/jpeg:https://lmv.uca.fr/wp-content/uploads/2017/04/paolo-sossi.jpeg END:VEVENT BEGIN:VEVENT DTSTART;TZID=Europe/Paris:20170608T090000 DTEND;TZID=Europe/Paris:20170608T110000 DTSTAMP:20260506T170202 CREATED:20170420T130840Z LAST-MODIFIED:20170420T130840Z UID:12793-1496912400-1496919600@lmv.uca.fr SUMMARY:Comité de direction DESCRIPTION: URL:https://lmv.uca.fr/agenda/comite-de-direction-2/ END:VEVENT BEGIN:VEVENT DTSTART;TZID=Europe/Paris:20170612T080000 DTEND;TZID=Europe/Paris:20170625T170000 DTSTAMP:20260506T170202 CREATED:20170509T160903Z LAST-MODIFIED:20170509T160903Z UID:12857-1497254400-1498410000@lmv.uca.fr SUMMARY:Daniele Pinti\, prof invité ClerVolc DESCRIPTION:Daniele Pinti (Université du Québec à Montréal) sera au laboratoire du 12 au 25 Juin 2017. URL:https://lmv.uca.fr/agenda/daniele-pinti-prof-invite-clervolc/ ATTACH;FMTTYPE=image/jpeg:https://lmv.uca.fr/wp-content/uploads/2017/04/et_2015_Pinti_Daniele-085.jpg END:VEVENT BEGIN:VEVENT DTSTART;TZID=Europe/Paris:20170614T100000 DTEND;TZID=Europe/Paris:20170614T120000 DTSTAMP:20260506T170202 CREATED:20170424T084846Z LAST-MODIFIED:20170614T151857Z UID:12808-1497434400-1497441600@lmv.uca.fr SUMMARY:Short Course Daniele Pinti DESCRIPTION:Cours donné par Daniele Pinti (Géotop\, Université du Québec à Montréal) le Mercredi 14 Juin de 10 à 12h dans la salle des séminaires (1.10). \nTitre : Les isotopes des gaz rares comme traceurs des systèmes hydrothermales URL:https://lmv.uca.fr/agenda/short-course-daniele-pinti/ ATTACH;FMTTYPE=image/jpeg:https://lmv.uca.fr/wp-content/uploads/2017/04/et_2015_Pinti_Daniele-085.jpg END:VEVENT BEGIN:VEVENT DTSTART;TZID=Europe/Paris:20170619T090000 DTEND;TZID=Europe/Paris:20170619T120000 DTSTAMP:20260506T170202 CREATED:20170420T130939Z LAST-MODIFIED:20170420T130939Z UID:12795-1497862800-1497873600@lmv.uca.fr SUMMARY:Conseil de laboratoire 2 DESCRIPTION: URL:https://lmv.uca.fr/agenda/conseil-de-laboratoire-2/ END:VEVENT BEGIN:VEVENT DTSTART;TZID=Europe/Paris:20170619T140000 DTEND;TZID=Europe/Paris:20170619T150000 DTSTAMP:20260506T170202 CREATED:20170412T122948Z LAST-MODIFIED:20170620T082804Z UID:12734-1497880800-1497884400@lmv.uca.fr SUMMARY:Séminaire de Daniele Pinti DESCRIPTION:Lundi 19 Juin à 14h dans la salle des séminaires (1.10) : Daniele Pinti (Université du Québec à Montréal\, Centre GEOTOP) \n  \nExploring xenon isotopes for understanding the primitive Earth URL:https://lmv.uca.fr/agenda/seminaire-de-daniele-pinti/ ATTACH;FMTTYPE=image/jpeg:https://lmv.uca.fr/wp-content/uploads/2017/04/et_2015_Pinti_Daniele-085.jpg END:VEVENT BEGIN:VEVENT DTSTART;TZID=Europe/Paris:20170620T140000 DTEND;TZID=Europe/Paris:20170620T150000 DTSTAMP:20260506T170202 CREATED:20170424T083406Z LAST-MODIFIED:20170620T150521Z UID:12804-1497967200-1497970800@lmv.uca.fr SUMMARY:Séminaire Alberto Saal DESCRIPTION:Salle des séminaires Mardi 20 juin à 14h. \n  \n \n  \n« Magmatic Degassing and the Volatile Budget of the Moon » \n  \nAbstract \nEstablishing the origin of water and other volatiles\, and how and when the budgets of these elements were set in planetary bodies during the earliest stages of Solar System evolution has important implications for understanding the genesis and evolution of the terrestrial planets and the origin of life. The Moon provides a frozen record of the first few hundred million years of Solar System evolution and\, thus\, offers a unique opportunity to establish the origin\, budget and timing of the water\, and other volatiles\, delivery to the terrestrial planets. Presently\, there are two distinct views: one\, suggesting that the Moon is “bone-dry”\, 100 to 1000 times more depleted in highly volatile elements (e.g.\, water) than Earth. The second view suggests that the Moon is only 5 to 10 times more depleted in highly volatile elements than Earth. Therefore\, the estimated extent of the Moon’s volatile depletion differs between the two views by a factor of 20 to 200. We show that  the 20 to 200 factor in the estimated Moon’s volatile depletion might originate from the fact that the degassing of volatile elements during lunar magmatic processes has not been carefully considered.  We have to account for the effect of magmatic degassing  before we can  estimate the extent of volatile depletion of the Moon.\n \n  URL:https://lmv.uca.fr/agenda/seminaire-alberto-saal/ ATTACH;FMTTYPE=image/jpeg:https://lmv.uca.fr/wp-content/uploads/2017/04/Saal.jpg END:VEVENT BEGIN:VEVENT DTSTART;VALUE=DATE:20170627 DTEND;VALUE=DATE:20170628 DTSTAMP:20260506T170202 CREATED:20170620T131642Z LAST-MODIFIED:20170720T120156Z UID:13087-1498521600-1498607999@lmv.uca.fr SUMMARY:Journée laboratoire Margeride DESCRIPTION:Intervenants scientifiques :\n\nJean-Pierre Couturié\, Jean-François Moyen\, Bernard Barbarin et Gérard Torrent.\n\n Les aspects géologiques abordés  :\n\nPétrologie et structure du massif granitique de la Margeride (un des 3 plus vastes en France)\nBassin oligocène du Malzieu\nFilon de microgranite de St léger du Malzieu\nGranite orbiculaire du Signal de Randon\n\nLeucogranites recoupant le granite de la Margeride\,  structure et mécanisme de mise en place\, à Tatula (sortie ouest de St Chély sur la route de Chaudes-Aigues)\n\nPseudo filon à tourmaline et nodules à tourmaline de Saint-Juéry\, formés par l’action métasomatique du bore des leucogranites.\nLe thermalisme  de Chaudes-Aigues\, structure géologique profonde\, origine de la minéralisation et de la température de l’eau.\n\nItinéraire  :\n\n\n\n\n\nClermont –> le Malzieu (48) par l’A75 –> Saint Chély\n–> St Amans par la N106 pour atteindre les sommets\ndes monts de la Margeride\n(Signal de Randon et Truc de Fortunio accessibles en car).\nRetour à St Chély –> St Juery –>Chaudes -Aigues par la N 989\nRetour par St Flour et l’A75\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n \n \n \n \n \n \n \n\n\n\nLes photos :\n « ‹ of 3 › » \nMerci à tous pour les contributions photos. URL:https://lmv.uca.fr/agenda/journee-laboratoire-margeride/ ATTACH;FMTTYPE=image/jpeg:https://lmv.uca.fr/wp-content/uploads/2017/06/souriot_20170627_102254.jpg END:VEVENT BEGIN:VEVENT DTSTART;VALUE=DATE:20170627 DTEND;VALUE=DATE:20170628 DTSTAMP:20260506T170202 CREATED:20170626T132557Z LAST-MODIFIED:20170626T132622Z UID:13101-1498521600-1498607999@lmv.uca.fr SUMMARY:Workshop “Muon Radiography on active volcanoes: Vesuvius and Stromboli” DESCRIPTION:Dans le cadre des journées de réunion de la collaboration MIVAS (Muon\nImaging of Vesuvio and Stromboli; INFN Naples & Florence\,  INGV Naples &\nCatania\, IPNLyon\, LPC\,  LMV-OPGC)\, qui se tiennent à Clermont du 24 au 28\njuin 2017\, un Workshop d’une journée est organisé\,  mardi 27 juin\, pour\nprésenter et discuter les différentes problématiques scientifiques autour\ndes futures expériences de Muographie au Vésuve et au Stromboli. \nCe workshop\, dont vous trouverez le programme en bas de la page\, se\ntiendra dans la salle chaîne des Puys\, au LMV. \nPour plus de détails\, contacter P. Labazuy \n  \nAgenda of the Workshop  \n“Muon Radiography on active volcanoes: Vesuvius and Stromboli”  \nTuesday – 27 June 2017  \nObservatoire de Physique du Globe de Clermont-Ferrand \nLaboratoire Magmas et Volcans\, “Chaîne des Puys” room \n9:00-9:15 \nCristina Carloganu and Giovanni Macedonio – IN2P3/INGV  \nWelcome \n9:15-10:15 \nSonia Calvari and Giovanni Macedonio – INGV\, Italy  \nThe feeding system of Vesuvius and Stromboli volcanoes \n10:15-11:00 \nNiklas Linde – Institute of Earth Sciences\, University of Lausanne\, Switzerland  \n3-D absolute density model of Stromboli edifice obtained by gravity inversion \n11:00-11:30 Break  \n11:30-12:30 \nPhilippe Labazuy – Observatoire de Physique du Globe de Clermont Ferrand\, France  \nGeophysical imaging of volcano structure: case study of Puy de Dôme \n12:30-14:00 Lunch  \n14:00-14:45 \nNiklas Linde – Institute of Earth Sciences\, University of Lausanne\, Switzerland  \n3-D absolute density model of Somma-Vesuvius edifice obtained by gravity inversion \n14:45-15:45 \nOliver Coutant – University of Grenoble\, France  \nVolcano seismology \n15:45-16:15 Break  \n16:15-17:15 \nAnne Barnoud – IN2P3 Clermont-Ferrand\, France  \nJoint inversion of muographic and gravimetric data \n17:15-18:00 \nFinal discussion  URL:https://lmv.uca.fr/agenda/workshop-muon-radiography-on-active-volcanoes-vesuvius-and-stromboli/ ATTACH;FMTTYPE=image/jpeg:https://lmv.uca.fr/wp-content/uploads/2017/06/230777-stromboli-le-volcan-stromboli.jpg END:VEVENT BEGIN:VEVENT DTSTART;TZID=Europe/Paris:20170628T170000 DTEND;TZID=Europe/Paris:20170628T190000 DTSTAMP:20260506T170202 CREATED:20170626T133414Z LAST-MODIFIED:20170626T133414Z UID:13105-1498669200-1498676400@lmv.uca.fr SUMMARY:Présentation Revue d'Auvergne DESCRIPTION:La présentation du numéro de la revue d’Auvergne consacré à l’OPGC aura lieu le mercredi 28 juin à 17h. \n  \nProgramme \nInterventions de Mathias Bernard\, Président de l’Université Clermont Auvergne et de Jean-Paul Fanget \, Directeur de la Revue \nD’Auvergne \nPrésentations \nPatrick Bachèlery\, Directeur de l’OPGC \n«L’OPGC : Un Observatoire des Sciences de l’Univers au sein de l’Université Clermont Auvergne.» \nNathalie Vidal\, attachée de conservation\, muséum Henri-Lecoq\, Clermont Auvergne Métropole \n«Histoire de l’Observatoire\, de la première idée (Emile Alluard\, 1869) à nos jours.» \nDidier Laporte\, Directeur du Laboratoire Magmas et Volcans\, LMV \n«Origine et histoire de la pétrologie expérimentale au LMV» \nJoel Van Baelen\, Directeur du Laboratoire Météorologie Physique\, LaMP \n« De l’air à la pluie… ou la vie du nuage sous un climat changeant» \nPierre Schiano\, Directeur du Laboratoire d’excellence ClerVolc \nPrésentation du laboratoire d’excellence ClerVolc : «la recherche moderne sur les volcans et le volcanisme.» \nCocktail URL:https://lmv.uca.fr/agenda/presentation-revue-dauvergne/ ATTACH;FMTTYPE=image/jpeg:https://lmv.uca.fr/wp-content/uploads/2017/06/1-logo-OPGC-2.jpg END:VEVENT BEGIN:VEVENT DTSTART;TZID=Europe/Paris:20170630T120000 DTEND;TZID=Europe/Paris:20170630T170000 DTSTAMP:20260506T170202 CREATED:20170620T131510Z LAST-MODIFIED:20170620T131510Z UID:13083-1498824000-1498842000@lmv.uca.fr SUMMARY:Paella OPGC DESCRIPTION:Cette année le repas « Barbecue » aura lieu le Vendredi 30 juin 2017 à 12h. \nNous allons peut-être changer cette année et faire une Paella géante. URL:https://lmv.uca.fr/agenda/paella-opgc/ ATTACH;FMTTYPE=image/png:https://lmv.uca.fr/wp-content/uploads/2017/06/pdgdphpbndjlmanl.png END:VEVENT END:VCALENDAR