Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Heidi Wehrmann"'
Autor:
Yvonne Dzierma, Heidi Wehrmann
Publikováno v:
Andean Geology, Vol 39, Iss 3, Pp 380-393 (2012)
A sequence of 150 explosive eruptions recorded during the past century at the Chilean Southern Volcanic Zone (SVZ) is subjected to statistical time series analysis. The exponential, Weibull, and log-logistic distribution functions are fit to the erup
Externí odkaz:
https://doaj.org/article/181d25730ea34177bb33fe34c2ff3dd4
Publikováno v:
Quaternary Research. 87:386-406
The recent volcanic eruptions of Eyjafjallajökull 2010 and Grímsvötn 2011 demonstrated the risks that mediumsized explosive Icelandic eruptions pose to the North Atlantic region. Using the Eyjafjallajökull 2010 eruption as a case study, we assess
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::51925e953dd7f71719a1f5e1ae4b26de
https://doi.org/10.1017/qua.2017.15
https://doi.org/10.1017/qua.2017.15
Autor:
Heidi Wehrmann, Kirstin Krüger, Karen Appel, Wendy Perez, Armin Freundt, Thor H. Hansteen, Steffen Kutterolf
Publikováno v:
Earth and Planetary Science Letters. 429:234-246
Highlights • Data set of Br and Cl emissions from 29 large CAVA eruptions (VEI > 5). • Melt inclusions are strongly enriched in chlorine and bromine compared to their respective matrix glasses. • Fluid partitioning is 4 to 68 times more efficie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::249167397a07ce3cec4ae6df62e2bc15
https://doi.org/10.1016/j.epsl.2015.07.064
https://doi.org/10.1016/j.epsl.2015.07.064
Autor:
Dieter Garbe-Schönberg, Kaj Hoernle, Kai Schumann, Guillaume Jacques, Julia Mahlke, Heidi Wehrmann
Publikováno v:
International Journal of Earth Sciences. 103:1929-1944
Subduction zones of continental, transitional, and oceanic settings, relative to the nature of the overriding plate, are compared in terms of trace element compositions of mafic to intermediate arc rocks, in order to evaluate the relationship between
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c1487149320a0d7b8b9c666df0789408
https://doi.org/10.1007/s00531-013-0917-1
https://doi.org/10.1007/s00531-013-0917-1
Autor:
Kai Schumann, Guillaume Jacques, Luis E. Lara, Kaj Hoernle, Heidi Wehrmann, Julia Mahlke, Dieter Garbe-Schönberg
Publikováno v:
International Journal of Earth Sciences. 103:1945-1962
Here we present the first systematic investigation of volatile geochemistry along the Southern Volcanic Zone (SVZ) of Chile. Holocene olivine-hosted melt inclusions in the most mafic tephras sampled from 16 volcanoes along the volcanic front of the S
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6734c7beb8cbb720f9e65a04491b737
https://doi.org/10.1007/s00531-014-1006-9
https://doi.org/10.1007/s00531-014-1006-9
Autor:
Heidi Wehrmann, Wolfgang Rabbel, Steffen Kutterolf, Karthik Iyer, David Völker, Kaj Hoernle, Jacob Geersen
Publikováno v:
International Journal of Earth Sciences. 103:2129-2153
In this paper, we constrain the input and output fluxes of H2O, Cl and S into the southern-central Chilean subduction zone (31°S–46°S). We determine the input flux by calculating the amounts of water, chlorine and sulfur that are carried into the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a733974aa5e78b00ba759e744c01fe06
https://doi.org/10.1007/s00531-014-1002-0
https://doi.org/10.1007/s00531-014-1002-0
Autor:
Kaj Hoernle, Ilya N. Bindeman, Guillaume Jacques, P. van den Bogaard, Luis E. Lara, Heidi Wehrmann, Folkmar Hauff, James B. Gill, Dieter Garbe-Schönberg
Publikováno v:
Geochimica et Cosmochimica Acta. 123:218-243
Crustal assimilation (e.g. Hildreth and Moorbath, 1988) and/or subduction erosion (e.g. Stern, 1991; Kay et al., 2005) are believed to control the geochemical variations along the northern portion of the Chilean Southern Volcanic Zone. In order to ev
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2387edcfcab66ef4ed0b3b111818fe58
https://doi.org/10.1016/j.gca.2013.05.016
https://doi.org/10.1016/j.gca.2013.05.016
Highly-explosive plinian eruptions belong to the most devastating phenomena of volcanic activity. Upper Apoyeque Tephra (UAq), erupted in close vicinity of the Managua city region in west-central Nicaragua with two million inhabitants, was formed by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2299268eb1a3e270c690a7cb59d70e58
https://oceanrep.geomar.de/id/eprint/32274/
https://oceanrep.geomar.de/id/eprint/32274/
Autor:
Yvonne Dzierma, Heidi Wehrmann
Publikováno v:
International Journal of Earth Sciences. 103:2029-2042
A probabilistic eruption forecast is provided for seven historically active volcanoes along the Central American Volcanic Arc (CAVA), as a pivotal empirical contribution to multi-disciplinary volcanic hazards assessment. The eruption probabilities ar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::847b37e5dc4f2c005c7744c04155490a
https://doi.org/10.1007/s00531-012-0803-2
https://doi.org/10.1007/s00531-012-0803-2
Autor:
Heidi Wehrmann, Yvonne Dzierma
Publikováno v:
Journal of Volcanology and Geothermal Research. 200:99-115
Standard stochastic failure-analysis techniques are applied to the geological eruption records of Villarrica and Lanin volcanoes in the Chilean Southern Volcanic Zone. These statistical methods are used to estimate the probabilities of eruptions larg
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb62cda271173fff7fad6783bcb2a811
https://doi.org/10.1016/j.jvolgeores.2010.11.009
https://doi.org/10.1016/j.jvolgeores.2010.11.009