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  1. Scopes of the IAVCEI Commission on Monogenetic Volcanism

    27 Jul 2011 | Contributor(s): Karoly Nemeth

    The term monogenetic as applied to volcanic systems carries with it the concept of eruptions of batches of magma within short timescales. Monogenetic volcanism is commonly expressed as clusters of individual volcanoes forming fields of small cones which are a consequence of dispersed plumbing...

  2. Spread sheet to calculate tephra volume for exponential thinning

    10 Apr 2015 | Contributor(s): Manuel Nathenson, Judy Fierstein

    An Excel spread sheet and instructions are provided to calculate tephra volume for exponential thinning on a log(thickness) versus square root of area plot. The spread sheet calculates volumes for a single straight line and for two straight lines. The equations for the calculations are from...

  3. Tephra 2014 - Maximizing the potential of tephra for multidisciplinary science

    09 Jan 2014 | Contributor(s): Steven Kuehn, Solene Pouget, Marcus I Bursik

    Tephra deposits are used by diverse communities: volcanologists, petrologists, tephrochronologists, paleoclimatologists, paleoecologists and archaeologists. To perhaps be too reductionist, volcanologists are generally interested in tephra to understand eruption behavior, frequency, and hazards;...

  4. 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.

  5. 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...

  6. Tephra 2017 Workshop : Best practices in tephra collection, analysis, and reporting leading toward better tephra databases

    15 Jun 2017 | Contributor(s): Marcus I Bursik, Stephen C Kuehn, Kristi L Wallace, Andrei V Kurbatov

    Best practices in tephra collection, analysis, and reporting: Leading toward better tephra databasesThis is a page for the Tephra 2017 workshop, held in Portland, OR, 19 August 2017.  The workshop was a follow-on to the Tephra 2014 workshop, held 3-7 August 2014, also in...

  7. Tephra in Quaternary Science 2011 Edinburgh Workshop Report: The Eyjafjallajökull eruptions of 2010

    18 Aug 2011 | Contributor(s): Andrew Julian Dugmore, Anthony Newton, Kate Taylor Smith

    Report and Community Statement from the workshop on the Eyjafjallajokull eruptions of 2010 and implications for tephrochronology, volcanology and Quaternary studies, Institute of Geography, University of Edinburgh, 5th‐6th May 2011. The first meeting of Tephra in Quaternary Science (TIQS), the...

  8. Tephra inversion with Tephra2 and the Metropolis-Hastings algorithm

    21 Jun 2020 | Contributor(s): Qingyuan Yang, E Bruce Pitman, Marcus I Bursik, Susanna Jenkins

    We couple the Metropolis-Hastings algorithm (Hastings, 1970) with the volcanic ash transport model Tephra2 (Bonadonna et al, 2005; 2010), and present the coupled algorithm as a new method to estimate the Eruption Source Parameters (ESPs) of volcanic eruptions based on mass per unit area...

  9. Tephra isopach, extent and volume calculation in R

    04 Mar 2016 | Contributor(s): Qingyuan Yang, Marcus I Bursik

    The method presented here is used to interpolate the thickness distribution of tephra fall deposits from point measurements. It first reconstructs the general thickness decay pattern, or "trend," and then models the residuals that cannot be explained by the trend with...

  10. Tephra2

    20 Apr 2010 | *Tools | Contributor(s): Costanza Bonadonna, Laura Connor, Chuck B Connor, Leah Michelle Courtland

    Tephra2 uses the advection diffusion equation to forecast tephra dispersion in a given location based on a user-defined set of eruptive conditions.

  11. Tephra2 Source Code

    14 Jul 2010 | Offline Tools | Contributor(s): Chuck B Connor, Leah Michelle Courtland

    Tephra2 uses the advection diffusion equation to forecast tephra dispersion in a given location based on a user-defined set of eruptive conditions.Tephra2 codes are now maintained on GitHub: https://github.com/geoscience-community-codes/tephra2 Available are:1-processor...

  12. Tephra2: Student Version

    21 Feb 2011 | *Tools | Contributor(s): Leah Michelle Courtland, Chuck B Connor, Laura Connor, Costanza Bonadonna

    The Tephra2 ash dispersion model run via a GUI designed for student use.

  13. TephraProb: a Matlab package for probabilistic hazard assessments of tephra fallout

    15 Sep 2016 | Offline Tools | Contributor(s): Sebastien Biass, Costanza Bonadonna, Laura J Connor, Chuck B Connor

    Download the code on GitHub: https://github.com/e5k/TephraProbFollow updates on: https://e5k.github.io/TephraProb is a toolbox of Matlab functions designed to produce scenario–based probabilistic hazard assessments for ground tephra accumulation. The toolbox includes a series of...

  14. The role of collapsing and rafting of scoria cones on eruption style changes and final cone morphology: los morados scoria cone, Mendoza, Argentina.

    27 Jul 2011 | Presentations | Contributor(s): Karoly Nemeth

    K Nemeth, C Risso, F Nullo, G Kereszturi , 2011. The role of collapsing and rafting of scoria cones on eruption style changes and final cone morphology: los morados scoria cone, Mendoza, Argentina. XXV IUGG General Assembly "Earth on the Edge: Science for a Sustainable Planet" 28 June - 7 July...

  15. TOTGS: Total grainsize distribution of tephra fallout

    20 Jan 2014 | Offline Tools | Contributor(s): Seb Biass, Costanza Bonadonna

    NOTE The code is now maintained on GitHub: https://github.com/e5k/TOTGS Follow updates on: https://e5k.github.io/  Quantifying the total grainsize distribution (TGSD) is a necessary step to achieve a thorough characterization of a given tephra deposit. Several methods exist to...

  16. Volcanic glass textures supporting extensive phreatomagmatic fragmentation of basaltic magma during the formation of the mio/pleistocene monogenetic volcanic fields of Western Hungary.

    27 Jul 2011 | Presentations | Contributor(s): Karoly Nemeth

    K Nemeth, 2011. Volcanic glass textures supporting extensive phreatomagmatic fragmentation of basaltic magma during the formation of the mio/pleistocene monogenetic volcanic fields of Western Hungary. XXV IUGG General Assembly "Earth on the Edge: Science for a Sustainable Planet" 28 June - 7 July...

  17. ZDGG Band 157. 2006. Heft 3 - Proceedings of the 2nd International Maar Conference: 337-511.

    27 Jul 2011 | Publications | Contributor(s): Karoly Nemeth