Cost/benefit Analysis: Guidelines for quantitative protocols for volcanic risk reduction
24 Aug 2015 | Contributor(s): dmitri rouwet
The goal of this deliverable is to provide guidelines that may allow scientists and decision makers tobridge the gap between volcanological knowledge and a rational decision making. Part of thecontent of this document has been published on the paper W. Marzocchi, C.G. Newhall, G. Woo(2012). The...
Tephra 2014-2020 Document Repository
01 Jul 2015 | Contributor(s): Marcus I Bursik, Solene Pouget, Stephen C Kuehn, Kristi L Wallace, Andrei V Kurbatov
Beginning with the consensus document (with three appendices) resulting from the Tephra 2014 Workshop, this is the document repository for the Tephra 2014, 2017 and 2019 Workshops on standardization.The immediate goal of the tephra standardization effort is to translate checklists...
Timescales of mingling in shallow magmatic reservoirs
12 Jun 2015 | Contributor(s): Chiara Paola Montagna, paolo papale, antonella longo
Arrival of magma from depth into shallow reservoirs has been documented as one of thepossible processes leading to eruption. Magma intruding and rising to the surface interacts with thealready emplaced, degassed magmas residing at shallower depths, leaving chemical signatures inthe erupted...
Sequential fragmentation/transport model applied to Irazu volcano, Costa Rica. Positive dispersion case
21 Mar 2015 | Contributor(s): Jose Brenes
Sequential fragmentation/transport model was applied to ash deposits of 1723 eruption of Irazu volcano, Costa Rica. Some 25% of the sub-populations showed positive dispersion values, which were associated to a new fractal dimension,. With the help of Mandelbrot fractal relationship...
Use of SFT in Irazu volcano. Negative dispersion case
21 Mar 2015 | Contributor(s): Jose Brenes
Sequential fragmentation/transport model was applied to Irazu volcano, Costa Rica. Fragmentation coefficient line was treated under a new light
Fallout tephra simulation for free
06 Jan 2015 | Contributor(s): Jose Brenes
GreetingsI am a retired Physics professor at Universidad de Costa Rica who is now tackling some volcanlogical issues, although my original field of study was superconductivity!!! QUITE A CHANGEAdjoint you will find some ideas I have being testing. You are encourage to give me your frank...
AGU Poster: Results of the Tephra 2014 Workshop on Maximizing the Potential of Tephra for Multidisciplinary Science
11 Dec 2014 | Contributor(s): Stephen C Kuehn, Solene Pouget, Kristi L Wallace, Marcus I Bursik
Poster presentation from the 2014 AGU Fall Meeting reporting on results and conclusions of the Tephra 2014 workshop
Tephra 2014 Field Trip Guide
08 Dec 2014 | Contributor(s): Stephen C Kuehn
Guidebook for the field trip to Mount Saint Helens conducted 4-August-2014 as part of the Tephra 2014 workshop.
Monogenetic volcanism of the Michoacán-Guanajuato Volcanic Field: Maar craters of the Zacapu basin and domes, shields, and scoria cones of the Tarascan highlands (Paracho-Paricutin region) Pre-meeting field guide for the 5th International Maar Confer
01 Dec 2014 | Contributor(s): Claus Siebe, Marie-Noëlle Guilbaud, Sergio Salinas, Pooja Kshirsagar, Magdalena Oryaëlle Chevrel, Juan Ramón de la Fuente, Athziri Hernández Jiménez, Lourdes Godínez
Monogenetic volcanism of the Michoacán-Guanajuato Volcanic Field: Maar craters of the Zacapu basin and domes, shields, and scoria cones of the Tarascan highlands (Paracho-Paricutin region)A pre-meeting fieldtrip (November 13-17) prior to the 5th International Maar Conference...
Contrasting eruptive styles of late Pleistocene-to-Holocene monogenetic volcanism from maars to domes in the Serdán-Oriental basin, eastern Mexican Volcanic Belt Post-meeting field guide for the 5th International Maar Conference, Querétaro, México
01 Dec 2014 | Contributor(s): Gerardo Carrasco-Núñez, Michael H. Ort, Nancy R. Riggs, Brian Zimmer, Lorena De León-Barragán, Mario López-Rojas
Contrasting eruptive styles of late Pleistocene-to-Holocene monogenetic volcanism from maars to domes in theSerdán-Oriental basin, eastern Mexican Volcanic BeltGerardo Carrasco-Núñez1,*, Michael H. Ort2, Nancy R. Riggs2, Brian Zimmer3,, Lorena De...
The Valle de Santiago maars, México: the record of magma-water fluctuations during the formation of a basaltic maar (La Alberca) and active post-desiccation subsidence at the bottom of a maar lake (Rincón de Parangueo) Intra-conference Field trip 5th
01 Dec 2014 | Contributor(s): José Jorge Aranda-Gómez, Gerardo Carrasco-Núñez
The Valle de Santiago maars, México: the record of magma-water fluctuations during the formation of a basaltic maar (La Alberca) and active post-desiccation subsidence at the bottom of a maar lake (Rincón de Parangueo)Jóse Jorge Aranda-Gómez* and Gerardo...
Maars associated with fracture- and/or conduit-controlled aquifers in folded limestone in San Luis Potosí, México Pre-conference Field trip 5th International Maar Conference, Querétaro, México
01 Dec 2014 | Contributor(s): José Jorge Aranda-Gómez, Pablo Dávila-Harris
Maars associated with fracture- and/or conduit-controlled aquifers in folded limestone in San Luis Potosí, MéxicoJosé Jorge Aranda-Gómez1,*, Pablo Dávila-Harris2, **1 Centro de Geociencias, Universidad Nacional autónoma de México, UNAM Campus...
5th International Maar Conference - Abstract Book - 2014
01 Dec 2014 | Contributor(s): Carrasco-Núñez G., Aranda-Gómez J.J., Ort M.H., Silva-Corona J.J.
Contribution of methane to total gas pressure in deep waters at lakes Nyos and Monoun (Cameroon, West Africa)
17 Jul 2014 | Contributor(s): Issa, Takeshi Ohba, Wilson Fangtong, Alain Fouepe, CHAKO TCHAMABE Boris, Yukata Yoshida, Minoru Kusakabe, Sigha Kamdjou, Urumu TSUNOGAI, Yu Uginuma, Greg Zinkeng Tanyileke, Hell J.V.
MeMoVolc workshop on the "Dynamics of volcanic explosive eruptions", Consensual Document
15 Jul 2014 | Publications | Contributor(s): Costanza Bonadonna, Raffaello Cioni, Antonio Costa, Tim Druitt, Jeremy Phillips, Laura Pioli
This workshop served to assess the main advantages and shortcomings of existing eruption classification schemes and to identify open questions and research priorities that could help improve our understanding of volcanic explosive eruptions. We identified the main parameters and processes...
Pyroclastic density currents and local topography as seen with the conveyer model
15 Apr 2014 | Publications | Contributor(s): Domenico M. Doronzo
Pyroclastic density currents (PDCs) are multiphase flows generated during explosive volcanic eruptions, and they move down the volcano, and over the surrounding topography. The flow-topography interaction can play a fundamental role in the sedimentary processes, and in the resulting deposit...
Towards a probabilistic scheme: How can we recognize and track non-magmatic unrest and related hazards?
18 Feb 2014 | Publications | Contributor(s): dmitri rouwet, Laura Sandri, Warner Marzocchi, Jo Gottsmann
Eruption forecasting is a major goal in volcanology. The intrinsic complexity and non-linearity of volcanic systems has recently led to an intertwining of deterministic to probabilistic eruption forecasting methods. However, many volcanoes often pass states of non-eruptive and non-magmatic unrest...
CVS Newsletter (Sept 2004)
22 Oct 2013 | Publications | Contributor(s): Vern Manville, Richard James Brown
Estimating Volcanic Risk in the Lesser Antilles
26 Sep 2013 | Publications | Contributor(s): Michal Camejo, Richard E.A. Robertson
The potential catastrophic effects of future volcanic eruptions in the Lesser Antilles can be decreased by the utilisation of effective risk quantification measures and their subsequent incorporation into disaster risk reduction strategies. A volcanic risk study conducted by the Norwegian...
Spherulites and thundereggs from pitchstones of the Deccan Traps: geology, petrochemistry, and emplacement environments
18 Sep 2013 | Publications | Contributor(s): Pooja Vinod Kshirsagar
Spherulites and thundereggs are rounded, typically spherical, polycrystalline objects found in glassy silicic rocks. Spherulites are dominantly made up of radiating microscopic fibers of alkali feldspar and a silica mineral (commonly quartz). They form due to heterogeneous nucleation in highly...