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Mafic alkalic magmatism in central Kachchh, India- a monogenetic volcanic field in the northwestern Deccan Traps
18 Sep 2013 | Contributor(s): Pooja Vinod Kshirsagar, Badre Alam shaikh, Hetu Sheth
Magmatism in Kachchh, in the northwestern Deccan continental flood basalt province, is represented not only by typical tholeiitic flows and dikes, but also plug-like bodies, in Mesozoic sandstone, of alkali basalt, basanite, melanephelinite and nephelinite, containing mantle nodules. They form...
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Global volcanic unrest in the 21st century: An analysis of the first decade
16 Sep 2013 | Contributor(s): Jo Gottsmann, Rosa Sobradelo
We define volcanic unrest as the deviation from the background or baseline behaviour of a volcano towards a behaviour which is a cause for concern in the short-term because it might prelude an eruption. When unrest is preceded by periods of quiescence over centuries or millennia it is...
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September 4th notes from PWW
04 Sep 2013 | Contributor(s): Peter W Webley
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Correlation of Magma Evolution and Geophysical Monitoring during the 2011^2012 El Hierro (Canary Islands) Submarine Eruption
04 Sep 2013 | Contributor(s): Joan Marti, Antonio Castro, Carmen Rodriguez, Fidel Costa, Sandra Carrasquilla, Rocio Pedreira, Xavier Bolos
The application of petrography, mineral chemistry, geochemistry, and xperimental petrology, including mineral^melt thermodynamic and diffusion modelling, on quenched basanitic magma samples from the recent (2011^2012) submarine eruption of El Hierro (Canary Islands) has permitted the...
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Electrical resistivity tomography revealing the internal structure of monogenetic volcanoes
04 Sep 2013 | Contributor(s): Stephanie Barde-Cabusson, Xavier Bolos, Dario Pedrazzi, Raul Lovera, Guillem Serra, Joan Marti, Albert Casas
Eruptive activity of individual monogenetic volcanoes usually lasts a few days or weeks. However, their short lifetime does not always mean that their dynamics andstructure are simple. Monogenetic cones construction is rarely witnessed from the beginning to the end, and conditions for observing...
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40Ar/39Ar Geochronology Results for Lunar Crater Volcanic Field Basalts, Nevada
21 May 2013 | Contributor(s): Matthew T Heizler
Full references (two reports):Heizler MT (2013) 40Ar/39Ar Geochronology Results for Lunar Crater Volcanic Field Basalts, Nevada. New Mexico Geochronological Research Laboratory internal report NMGRL-IR-792, https://vhub.org.resources/2503.Heizler MT (2014) 40Ar/39Ar Geochronology Results for...
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Basalt 2013 - Cenozoic Magmatism in Central Europe: Abstracts and Excursion Guides
16 May 2013 | Contributor(s): Karoly Nemeth
Full abstract volume of the Basalt 2013 conference (24-28 April 2013, Goerlitz, Germany).The conference was supported by IAVCEI and it was an event of the Commission on Monogenetic Volcanism.
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Tool Migration to Wheezy
06 May 2013 | Contributor(s): Erich Huebner
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Bubble nucleation in H2O-CO2 bearing basaltic melts: results of high temperature decompression experiments
26 Apr 2013 | Contributor(s): Nolwenn Le Gall, Michel Pichavant, Alain Burgisser
AGU Meeting, San Francisco 2012Previous experiments have shown that mechanisms of basalt degassing are strongly contrasted when gas bubbles are present or when they are absent. Thus, experimental information on the kinetics of bubble nucleation in basaltic melts is needed, and high temperature...
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CO2-rich melts generated during basalt magma ascent and degassing
26 Apr 2013 | Contributor(s): Michel Pichavant, Ida Di Carlo, Silvio Rotolo, Bruno Scaillet, Alain Burgisser, Nolwenn Le Gall, Caroline Martel
AGU Meeting San Francisco 2012To test mechanisms of basaltic magma degassing, experimental decompressions of volatile-bearing (2.7-3.8 wt% H2O, 600-1300 ppm CO2) Stromboli melts have been performed from 250-200 to 50-25 MPa at 1180-1140°C. Ascent rates were varied from 0.25 to ~ 1.5 m/s. Both the...
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Volcanic Threat in Central America
14 Apr 2013 | Contributor(s): Jose L. Palma
(Presented at AGU Fall Meeting in 2008)This presentation shows an assessment of the volcanic threat posed by the 23 most active and best documented volcanoes in Central America. It also includes a preliminary evaluation for all volcanoes in Guatemala. The results are compared to the threat posed...
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ICCS'13 paper
29 Mar 2013 | Contributor(s): Abani Patra
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M.E. Thomas COV7 Presentation. Can we use seismicity to predict volcanic activity without understanding it?
20 Mar 2013 | Contributor(s): Mark Thomas, Jurgen Neuberg
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How conduit models can be used to interpret volcano monitoring data. Geophysical Research Abstracts Vol. 14, EGU2012-8615, 2012
20 Mar 2013 | Contributor(s): Mark Thomas, Jurgen Neuberg, Sandra Karl, Amy Collinson, Karen Pascal
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Georgia Phillipson, Jo Gottsmann COV7 Colima abstract and presentation
20 Mar 2013 | Contributor(s): Jo Gottsmann
Global volcanic unrest in the 21st Century: An analysis of the first decadeVolcanic unrest is perhaps best defined as the deviation from the background or baseline behaviour of a volcano towards a level of activity, which is cause for concern in the short-term because it might be a prelude to an...
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The sensitivity of conduit flow models to basic input parameters: there is no need for magma trolls! Geophysical Research Abstracts Vol.14, EGU2012-8467, 2012.
20 Mar 2013 | Contributor(s): Mark Thomas, Jurgen Neuberg
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Phillipson and Gottsmann EGU2012 Vol. 14, EGU2012-3695, 2012
20 Mar 2013 | Contributor(s): Jo Gottsmann
Volcanic unrest is the deviation from the background or baseline behaviour of a volcano towards a level of activity, which is cause for concern in the short term because it might be a prelude to an eruption. When volcanic unrest is preceded by lengthy periods of quiescence it is particularly...
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J. Gottsmann EGU 2012 Abstract Vol. 14, EGU2012-2353, 2012
20 Mar 2013 | Publications | Contributor(s): Jo Gottsmann
In this presentation I explore magma chamber stress conditions prior to a large-magnitude andesitic eruption and associated pre-eruptive ground deformation and gravity field perturbations. The analyis is informed by constraints from multi-disciplinary investigations of the data-rich and ongoing...
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Abstracts of presentations at the VUELCO conference (March 7 and 8, 2013 (Barcelona, Spain)
12 Mar 2013 | Publications | Contributor(s): Jo Gottsmann
This pdf files contains all abstracts submitted for presentation at the conference.
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Handbook for Volcanic Risk Management - Prevention, Crisis Management, Resilience
01 Mar 2013 | Publications
The EU project MIAVITA has produced the "Handbook for Volcanic Risk Management - prevention, crisis management, resilience".This free handbook is mainly addressed to civil protection stakeholders, scientists and in general to all the Institutions/people that deal with the management of volcanic...