Items where Author is "Wehrmann, Heidi"

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Number of items: 76.

Article in a Scientific Journal - peer-reviewed


Kutterolf, S., Hansteen, T. H., Appel, K., Freundt, A., Krüger, K., Perez, W. and Wehrmann, H. (In Press / Accepted) Combined bromine and chlorine release from large explosive volcanic eruptions: A threat to stratospheric ozone? Geology . DOI 10.1130/G34044.1.


Wehrmann, H., Hoernle, K., Garbe-Schönberg, D., Jacques, G., Mahlke, J. and Schumann, K. (Submitted) Insights from trace element geochemistry as to the roles of subduction zone geometry and subduction input on the chemistry of arc magmas International Journal of Earth Sciences .

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Dzierma, Y., Rabbel, W., Thorwart, M., Koulakov, I., Wehrmann, H., Hoernle, K. and Comte, D. (2012) Seismic velocity structure of the slab and continental plate in the region of the 1960 Valdivia (Chile) slip maximum - insights into fluid release and plate coupling Earth and Planetary Science Letters, 331-332 . pp. 164-176. DOI 10.1016/j.epsl.2012.02.006.


Wehrmann, H., Hoernle, K., Jacques, G., Garbe-Schönberg, D., Schumann, K., Mahlke, J. and Lara, L. (Submitted) Sulphur and chlorine geochemistry of mafic to intermediate tephras from the Chilean Southern Volcanic Zone (33-43°S) compared with those from the Central American Volcanic Arc International Journal of Earth Sciences .

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Völker, D., Kutterolf, S. and Wehrmann, H. (2011) Comparative mass balance of volcanic edifices at the Southern Volcanic Zone of the Andes between 33°S and 46°S Journal of Volcanology and Geothermal Research, 205 . pp. 114-129. DOI 10.1016/j.jvolgeores.2011.03.011.

Wehrmann, H., Hoernle, K., Portnyagin, M., Wiedenbeck, M. and Heydolph, K. (2011) Volcanic CO2 output at the Central American subduction zone inferred from melt inclusions in olivine crystals from mafic tephras Geochemistry, Geophysics, Geosystems, 12 . Q06003. DOI 10.1029/2010GC003412.

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Costantini, L., Bonadonna, C., Houghton, B. F. and Wehrmann, H. (2009) New physical characterization of the Fontana Lapilli basaltic Plinian eruption, Nicaragua Bulletin of Volcanology, 71 (3). pp. 337-355. DOI 10.1007/s00445-008-0227-9.


Kutterolf, S., Freundt, A., Perez, W., Mörz, T., Schacht, U., Wehrmann, H. and Schmincke, H. U. (2008) Pacific offshore record of plinian arc volcanism in Central America: 1. Along-arc correlations Geochemistry Geophysics Geosystems, 9 . DOI 10.1029/2007GC001631.


Kutterolf, S., Freundt, A., Perez, W., Wehrmann, H. and Schmincke, H. U. (2007) Late Pleistocene to Holocene temporal succession and magnitudes of highly-explosive volcanic eruptions in west-central Nicaragua Journal of Volcanology and Geothermal Research, 163 . pp. 55-82. DOI 10.1016/j.jvolgeores.2007.02.006.


Freundt, A., Kutterolf, S., Wehrmann, H., Schmincke, H. U. and Strauch, W. (2006) Eruption of the dacite to andesite zoned Mateare Tephra, and associated tsunamis in Lake Managua, Nicaragua Journal of Volcanology and Geothermal Research, 149 (1-2). pp. 103-123.

Book chapter


Kutterolf, S., Schacht, U., Wehrmann, H., Freundt, A. and Mörz, T. (2007) Onshore to offshore tephrostratigraphy and marine ash layer diagenesis in Central America Central America: geology, resources, hazards. Taylor & Francis, London, pp. 395-421. ISBN 978-0-415-41648-1


Wehrmann, H., Bonadonna, C., Freundt, A., Houghton, B. F. and Kutterolf, S. (2006) Fontana Tephra: A basaltic plinian eruption in Nicaragua Volcanic hazards in Central America. Geological Society of America Special Paper, 412 . Geological Society of America, Boulder, Colorado, pp. 209-223.


Freundt, A., Kutterolf, S., Schmincke, H. U., Hansteen, T., Wehrmann, H., Perez, W., Strauch, W. and Navarro, M. (2006) Volcanic hazards in Nicaragua: Past, present, and future Volcanic hazards in Central America. Geological Society of America Special Paper, 412 . Geological Society of America, Boulder, Colorado, pp. 141-165. DOI 10.1130/2006.2412(08).

Conference presentation


Kutterolf, S., Hansteen, T., Appel, K., Freundt, A., Krüger, K., Peréz Fern´andez, W. and Wehrmann, H. (2012) Bromine in Plininan eruptions: A paleo-ozone killer? [Talk] In: The Lübeck Retreat, Collaborative Research SFB 574 Volatiles and Fluids in Subduction Zones: Climate Feedback and Trigger Mechanisms for Natural Disasters, 23.-25.05.2012, Lübeck . The Lübeck Retreat: final colloquium of SFB 574; May 23-25, 2012: program & abstracts ; p. 16 .


Rabbel, W., Dzierma, Y., Thorwart, M., Wunderlich, T., Koulakov, I., Hoernle, K. and Wehrmann, H. (2012) From the Valdivia Fracture Zone to the Villarrica volcanic complex - seismic evidence of a link between subducted oceanic faults and volcanism [Talk] In: The Lübeck Retreat, Collaborative Research SFB 574 Volatiles and Fluids in Subduction Zones: Climate Feedback and Trigger Mechanisms for Natural Disasters, 23.-25.05.2012, Lübeck . The Lübeck Retreat: final colloquium of SFB 574; May 23-25, 2012: program & abstracts ; p. 25 .


Wehrmann, H., Dzierma, Y., Kutterolf, S. and Schaller, T. (2012) On the probability of future plinian eruptions at the Central American Volcanic Arc: a statistical time series analysis [Talk] In: The Lübeck Retreat, Collaborative Research SFB 574 Volatiles and Fluids in Subduction Zones: Climate Feedback and Trigger Mechanisms for Natural Disasters, 23.-25.05.2012, Lübeck . The Lübeck Retreat: final colloquium of SFB 574; May 23-25, 2012: program & abstracts ; pp. 36-37 .


Rivera, R., Wehrmann, H. and Hoernle, K. (2012) Variations of S and Cl from melt inclusions of tephras across the Andean Arc, between 34°21’ and 37° 17’ S, Southern Volcanic Zone [Talk] In: 13. Congreso Geologico Chileno, 05.-09.08.2012, Antofagasta, Chile .


Krüger, K., Kutterolf, S., Hansteen, T., Appel, K., Freundt, A., Perez, W. and Wehrmann, H. (2012) The combined bromine and chlorine release from large explosive volcanic eruptions: a threat to stratospheric ozone [Talk] In: AGU Chapman Conference on Volcanism and the Atmosphere, 10.-15.06.2012, Selfoss, Iceland .


Wehrmann, H., Dzierma, Y., Kutterolf, S. and Schaller, T. (2012) The probability of future plinian eruptions at the Central American Volcanic Arc: a statistical time series analysis [Talk] In: 8. Alexander von Humboldt International Conference, Natural Disasters, Global Change, and the Preservation of World Heritage Sites, 12.-16.11.2012, Cusco, Peru .

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Jacques, G., Hoernle, K., Wehrmann, H., Garbe-Schönberg, D., van den Bogaard, P., Hauff, F. and Lara, L. (2011) Along-Arc geochemical variations in the Southern Volcanic Zone, Chile [Talk] In: Goldschmidt Conference 2011, 14.-19.08.2011, Prague, Czech Republic ; p. 1096 .

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Hoernle, K., Jacques, G., Wehrmann, H., Dzierma, Y., Garbe-Schönberg, D., van den Bogaard, P., Lara, L., Völker, D., Kutterolf, S. and Iyer, K. (2011) Geochemical, Geophysical and Morphological Results from the Chilean Southern Volcanic Zone: The Role of Fluids in Generating the Highest Magmatic Output [Talk] In: AGU Fall Meeting 2011, 05.-09.12.2011, San Francisco, USA .

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Jacques, G., Hoernle, K., Wehrmann, H., Garbe-Schönberg, C. D., van den Bogaard, P., Hauff, F. and Lara, L. (2010) Along- and Across-Arc Variations in the Southern Volcanic Zone, Chile [Talk] In: 88. Jahrestagung der Deutschen Mineralogischen Gesellschaft, DMG, From Dust to Dust, 19.09.-22.09.2010, Münster . From Dust to Dust : 88. Jahrestagung der Deutschen Mineralogischen Gesellschaft, DMG ; Abstracts ; 122, S09-T08 .


Jacques, G., Hoernle, K. A., Wehrmann, H., Garbe-Schönberg, D., van den Bogaard, P., Hauff, F. and Lara, L. (2010) Along- and Across-Arc Variations in the Southern Volcanic Zone, Chile [Talk] In: SFB 574 Subduction Workshop, 04.-07.11.2010, Pucon, Chile .


Kutterolf, S., Hansteen, T., Appel, K., Freundt, A., Perez, W. and Wehrmann, H. (2010) Bromine release during Plinian eruptions along the Central American Volcanic Arc [Talk] In: SFB 574 Subduction Workshop, 04.-07.11.2010, Pucon, Chile .


Hansteen, T., Kutterolf, S., Appel, K., Freundt, A., Perez, W. and Wehrmann, H. (2010) Bromine release during Plinian eruptions along the Central American Volcanic Arc [Talk] In: AGU Fall Meeting 2010, 13.-17.12.2010, San Francisco, USA .


Dzierma, Y. and Wehrmann, H. (2010) Eruption time series statistically examined: Probabilities of future eruptions in the Chilean Southern Volcanic Zone [Talk] In: SFB 574 Subduction Workshop, 04.-07.11.2010, Pucon, Chile .


Frische, M., Fietzke, J., Wehrmann, H., Hansteen, T. and Kutterolf, S. (2010) High-precision determination of stable chlorine isotopes: Insights into recycling processes beneath volcanic arcs [Talk] In: SFB 574 Subduction Workshop, 04.-07.11.2010, Pucon, Chile .


Kutterolf, S., Hansteen, T., Rickers-Appel, K., Freundt, A., Perez, W., Wehrmann, H. and Frische, M. (2010) Magmatic heavy halogen concentrations and degassed masses in late Pleistocene to Holocene Plinian eruptions of Nicaragua [Talk] In: European Geosciences Union General Assembly, 02.-07.05.2010, Vienna, Austria .


Hansteen, T., Kutterolf, S., Freundt, A., Frische, M., Wehrmann, H., Schmincke, H. U. and Horn, S. (2009) Stratospheric input of heavy halogens (Br, I) from large explosive eruptions: Information from melt inclusions [Talk] In: Goldschmidt Conference 2009, 21.-26.06.2009, Davos, Switzerland ; A493 .


Wehrmann, H., Hoernle, K., Portnyagin, M., Wiedenbeck, M., Heydolph, K. and van den Bogaard, P. (2008) CO2-turnover at the Central American subduction zone - insights from melt inclusions in mafic tephras [Other] In: IAVCEI General Assembly, 18.08.-25.08, Reykjavik, Iceland .


Kutterolf, S., Freundt, A., Perez, W., Wehrmann, H. and Schmincke, H. U. (2008) Mafic Plinian eruptions: A common phenomenon at the Central American volcanic arc [Talk] In: IAVCEI International Meeting, 18.-22.08, Reykjavik, Iceland .


Perez, W., Kutterolf, S., Freundt, A., Wehrmann, H. and Schmincke, H. U. (2007) CAVA magma production rates and volcanic hazards: Some aspects based on widespread tephras [Talk] In: Workshop to Integrate Subduction Factory and Seismogenic Zone Studies in Central America, 18.- 22.06, Heredia, Costa Rica .


Freundt, A., Kutterolf, S., Perez, W., Wehrmann, H. and Schmincke, H. U. (2007) CAVA magma production rates and volcanic hazards: Some aspects based on widespread tephras [Talk] In: US-MARGINS/SFB574 Workshop, 18.-22.06, San Jose, Costa Rica .


Freundt, A., Kutterolf, S., Perez, W., Wehrmann, H. and Schmincke, H. U. (2007) Magma production rates along the Central American Volcanic Arc [Talk] In: 97th Annual Meeting of the Geologische Vereinigung (GV) - The Oceans in the Earth System, International Conference 2007, 03.-05.10, Bremen .


Hoernle, K., Portnyagin, M., Wehrmann, H., Heydolph, K., Kutterolf, S., Freundt, A., Abt, D., Fischer, K., Grevemeyer, I., Ivandic, M., Rabbel, W., Thorwart, M. and Dinc-Akdogan, N. (2007) An overview of Volatile and Isotopic variations along the Central American Volcanic Front [Invited talk] In: AGU Fall Meeting 2007, 10.-14.12, San Francisco, USA .


Wehrmann, H. and Freundt, A. (2005) Bromine and iodine concentrations in volcanic glasses determined by Synchrotron-XRF: origin and partitioning of heavy halogens during basaltic-andesitic and rhyolitic arc magma formation at the Central American subduction zone [Talk] In: ECROFI XVIII (European Current Research on Fluid Inclusions) International Meeting, 06.-09.07, Siena, Italy .


Kutterolf, S., Schacht, U., Freundt, A., Wehrmann, H., Mörz, T., Schmidt, M. and Schmincke, H. U. (2005) Vulkanische Aschen im pazifischen Ozean vor Nicaragua und Costa Rica - Ergebnisse der Sonne Ausfahrt SO 173/3 [Talk] In: SONNE Statusseminar, 09.-11.03, Rostock-Warnemünde .


Kutterolf, S., Schacht, U., Freundt, A., Wehrmann, H., Mörz, T., Schmidt, M. and Schmincke, H. U. (2004) Marine Tephras offshore Nicaragua and Costa Rica - Determination of sedimentation rates, eruption volumes, marine stratigraphy [Talk] In: IAVCEI Generally Assembly, 14.-20.11, Pucon, Chile .


Freundt, A., Kutterolf, S., Wehrmann, H., Schmincke, H. U. and Strauch, W. (2004) Tsunami in Lake Managua, Nicaragua, triggered by a compositionally zoned plinian eruption [Talk] In: IAVCEI Generally Assembly, 14.-20.11, Pucon, Chile .


Freundt, A., Kutterolf, S., Wehrmann, H., Perez, W., Schmincke, H. U. and Strauch, W. (2004) Volatile masses put into the stratosphere by arc-volcano plinian eruptions: Along-term record from Nicaragua [Talk] In: IAVCEI Generally Assembly, 14.-20.11, Pucon, Chile .


Kutterolf, S., Wehrmann, H., Schacht, U., Freundt, A. and Schmincke, H. U. (2003) Alteration, distribution, and correlation of ash layers in the pacific seafloor off Nicaragua with on-land tephras - Implications for Volatile release and eruption parameters [Talk] In: IAVCEI/IUGG international meeting, 09.-13.07, Sapporo, Japan .


Wehrmann, H., Kutterolf, S., Freundt, A. and Schmincke, H. U. (2003) Stratigraphy and Eruption Dynamics of, and volatile release from highly explosive volcanic eruptions in central Nicaragua during the last 30 ka [Talk] In: IUGG, 09.- 13.07, Sapporo, Japan .


Wehrmann, H., Kutterolf, S., Freundt, A. and Schmincke, H. U. (2003) Stratigraphy and eruption dynamics of, and volatile release from, highly explosive eruptions of the Central Nicaraguan volcanic front over the last 30ka [Talk] In: IAVCEI/IUGG international meeting, 09.-13.07, Sapporo, Japan .


Wehrmann, H., Freundt, A., Kutterolf, S., Schmincke, H. U. and Strauch, W. (2003) Volatile Release and Eruption Dynamics of a Basaltic Plinian Eruption From Masaya Caldera, Nicaragua [Talk] In: AGU - Fall Meeting, 08.- 12.12, San Francisco, USA .


Freundt, A., Wehrmann, H., Kutterolf, S. and Schmincke, H. U. (2003) Volatile injection into atmosphere from highly explosive arc-volcanoes: A ~5000 years record from Nicaragua [Talk] In: DMG-GV-DGG-Tagung, 22.-25.09 .


Wehrmann, H., Freundt, A., Kutterolf, S. and Schmincke, H. U. (2003) Volatile release and eruption dynamics of the basaltic-andesitic Fontana Tephra, Nicaragua [Talk] In: AGU international meeting, 08.-12.12, San Francisco, USA .

Conference poster


Wehrmann, H., Dzierma, Y., Kutterolf, S. and Schaller, T. (2013) The probability of future plinian eruptions at the Central American Volcanic Arc: a statistical time series analysis [Poster] In: 73. Jahrestagung der Deutschen Geophysikalischen Gesellschaft, 04.-07.03.2013, Leipzig, Germany .

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Jacques, G., Hoernle, K., Hauff, F., Wehrmann, H., Gill, J., Garbe-Schönberg, D., van den Bogaard, P., Bindeman, I. and Lara, L. E. (2012) Across-arc geochemical variations in the Southern Volcanic Zone, Chile (34.5- 38.0°S): Constraints on Mantle Wedge and Input Compositions [Poster] In: AGU Fall Meeting 2012, 03.-07.12.2012, San Francisco, USA .


Jacques, G., Hoernle, K. A., Wehrmann, H., Garbe-Schönberg, D., van den Bogaard, P., Hauff, F., Mahlke, J., Schumann, K., Bindeman, I. and Lara, L. E. (2012) Along- and across-arc geochemical variations in the Southern Volcanic Zone, Chile [Poster] In: The Lübeck Retreat, Collaborative Research SFB 574 Volatiles and Fluids in Subduction Zones: Climate Feedback and Trigger Mechanisms for Natural Disasters, 23.05.-25.05.2012, Lübeck . The Lübeck Retreat: final colloquium of SFB 574; May 23-25, 2012: program & abstracts ; pp. 13-14 .


Kutterolf, S., Heydolph, K., Freundt, A., Hoernle, K., Hauff, F., Perez, W., Wehrmann, H., Garbe-Schönberg, D. and Schmincke, H. U. (2012) Comparing felsic and mafic volcanics along Central America with implications for interaction with continental crust [Poster] In: Goldschmidt Conference 2012, 24.-29.06.2012, Montreal, Canada .


Rabbel, W., Dzierma, Y., Thorwart, M., Wunderlich, T., Koulakov, I., Hoernle, K. and Wehrmann, H. (2012) From the Valdivia Fracture Zone to the Villarrica volcanic complex - seismic evidence of a link between subducted oceanic faults and volcanism [Poster] In: The Lübeck Retreat, Collaborative Research SFB 574 Volatiles and Fluids in Subduction Zones: Climate Feedback and Trigger Mechanisms for Natural Disasters, 23.-25.05.2012, Lübeck . The Lübeck Retreat: final colloquium of SFB 574; May 23-25, 2012: program & abstracts ; p. 25 .


Wehrmann, H., Halama, R., Garbe-Schönberg, D., Hoernle, K., Jacques, G., Heydolph, K., Mahlke, J. and Schumann, K. (2012) On the fluid-mobility of molybdenum, tungsten, and antimony in subduction systems [Poster] In: The Lübeck Retreat, Collaborative Research SFB 574 Volatiles and Fluids in Subduction Zones: Climate Feedback and Trigger Mechanisms for Natural Disasters, 23.-25.05.2012, Lübeck . The Lübeck Retreat: final colloquium of SFB 574; May 23-25, 2012: program & abstracts ; p. 37 .


Hoernle, K., Wehrmann, H., Jacques, G., Rivera, R. and Gill, J. (2012) Phreatomagmatic volcanism in the area of Cerro Azul, 35.7°S, Southern Volcanic Zone, Chile: La Resolana and Los Hornitos Cinder Cones and Maars [Poster] In: Hopi Buttes Volcanic Field Workshop: Interpreting Maar-Diatreme Volcanism using base to top exposures, syn-eruptive surface deposits and country-rock strata, 21.10.-27.10.2012, Flagstaff, Arizona, USA .

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Rabbel, W., Dzierma, Y., Thorwart, M., Wunderlich, T., Koulakov, I., Hoernle, K. and Wehrmann, H. (2012) Seismic evidence of a link between subducted oceanic faults and volcanism: A case study from South Central Chile [Poster] In: EGU General Assembly 2012, 22.-27.04.2012, Vienna, Austria .


Wehrmann, H., Hoernle, K., Jacques, G., Garbe-Schönberg, D., Schumann, K., Mahlke, J. and Lara, L. (2012) Sulphur and chlorine geochemistry of mafic to intermediate tephras from the Chilean Southern Volcanic Zone (33-43°S) compared with those from the Central American Volcanic Arc [Poster] In: The Lübeck Retreat, Collaborative Research SFB 574 Volatiles and Fluids in Subduction Zones: Climate Feedback and Trigger Mechanisms for Natural Disasters, 23.-25.05.2012, Lübeck . The Lübeck Retreat: final colloquium of SFB 574; May 23-25, 2012: program & abstracts ; pp. 37-38 .

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Wehrmann, H., Halama, R., Garbe-Schönberg, D., Hoernle, K., Jacques, G., Heydolph, K., Mahlke, J. and Schumann, K. (2011) On the fluid-mobility of molybdenum, tungsten, and antimony in subduction systems [Poster] In: Goldschmidt Conference 2011, 14.-19.08.2011, Prague, Czech Republic ; p. 2140 .


Wehrmann, H., Garbe-Schönberg, D., Hoernle, K., Jacques, G., Mahlke, J., Schumann, K. and van den Bogaard, P. (2010) On the fluid-mobility of molybdenum and tungsten in subduction zone volcanics: a comparative study of the Chilean Southern Volcanic Zone and the Central American Volcanic Arc [Poster] In: SFB 574 Subduction Workshop, 04.-07.11.2010, Pucon, Chile .


Wehrmann, H., Garbe-Schönberg, C. D., Jacques, G., Hoernle, K., Mahlke, J. and Schumann, K. (2010) Tephras from the Southern Chilean-Argentinian subduction system: high-resolution trace element analyses by LA-ICP-MS [Poster] In: 10th European Workshop on Laser Ablation, 29.06.-01.07.2010, Kiel, Germany .


Dzierma, Y. and Wehrmann, H. (2010) Young volcanoes in the Chilean Southern Volcanic Zone: A statistical approach to eruption prediction based on time series [Poster] In: 6th Alexander von Humboldt International Conference on Climate Change, Natural Hazards, and Societies, 14.-19.03.2010, Merida, Mexico .


Schumann, K., Wehrmann, H. and Friese, K. (2009) Geochemical investigation of the three volcanoes, Casablanca, Osorno and Cabeza de Vaca, Southern Volcanic Zone, Chile [Poster] In: 87. Tagung der Deutschen Mineralogischen Gesellschaft, 13.-16.09., Halle .


Völker, D., Kutterolf, S. and Wehrmann, H. (2009) The Southern Volcanic Zone of Chile: calculations of Holocene and Pleistocene volcano volumes and relations between volume distribution and subduction parameters [Poster] In: Lateinamerika-Kolloquium 2009, 06.04.-09.04, Göttingen .


Völker, D., Kutterolf, S. and Wehrmann, H. (2008) Comparative mass balance of volcanic edifices at the Southern Volcanic Zone of the Andes between 33°S and 46°S [Poster] In: 4th EGU Alexander von Humboldt International Conference - The Andes: Challenge for Geosciences, 24.-28.11, Santiago de Chile, Chile .


Wehrmann, H., Kutterolf, S., Hoernle, K., Freundt, A., Portnyagin, M. and Heydolph, K. (2008) Continental subduction settings: reduced volatile transport of Cl and S to the surface? [Poster] In: AGU Fall Meeting 2008, 15.-19.12.2008, San Francisco, USA .


Hansteen, T., Kutterolf, S., Freundt, A., Frische, M., Wehrmann, H., Schmincke, H. U. and Kluegel, A. (2008) Heavy Halogen (Br, I) Injections into the Stratosphere from Large Explosive Volcanic Eruptions: Information from Melt Inclusions [Poster] In: AGU International Meeting 2008, 15.-19.12.2008, San Francisco, USA .


Kutterolf, S., Völker, D., Wehrmann, H. and Hansteen, T. (2008) Volume Distribution of Volcanic Edifices at the Southern Volcanic Zone of the Andes Between 33°S and 46°S [Poster] In: AGU Fall Meeting 2008, 15.-19.12.2008, San Francisco, USA .


Wehrmann, H., Freundt, A. and Kutterolf, S. (2007) Exsolution of magmatic volatiles governing unususal eruptions: constraints on fragmentation and eruptive style of the mafic plinian Fontana eruption, Nicaragua [Poster] In: SubFac-SEIZE Workshop, 18.-22.06, Heredia, Costa Rica .


Wehrmann, H., Freundt, A. and Kutterolf, S. (2007) Magmatic volatile degassing governing unususal eruptions: constraints on fragmentation and eruptive style of the mafic plinian Fontana eruption, Nicaragua [Poster] In: 97th Annual Meeting of the Geologische Vereinigung (GV) - The Oceans in the Earth System, International Conference 2007, 01.-05.10, Bremen .


Wehrmann, H., Freundt, A., Kutterolf, S., Bonadonna, C., Houghton, B. F. and Schmincke, H. U. (2004) Dynamics of the basaltic Plinian Fontana eruption, Nicaragua [Poster] In: IAVCEI Generally Assembly, 14.-20.11, Pucon, Chile .


Kutterolf, S., Freundt, A., Wehrmann, H., Schmincke, H. U. and Strauch, W. (2004) Varying volatile release during dacitic Chiltepe Pumice eruption (Nicaragua): Response to compositional changes and magma mixing? [Poster] In: IAVCEI Generally Assembly, 14.-20.11, Pucon, Chile .

Thesis - not published by a publisher

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Wehrmann, H. (2005) Volatile degassing and plinian eruption dynamics of the mafic Fontana Tephra, Nicaragua (Doctoral thesis/PhD), Christian-Albrechts-Universität, Kiel, 111 pp

This list was generated on Sat May 25 14:49:34 2013 CEST.