Zobrazeno 1 - 10
of 26
pro vyhledávání: '"David W. McGarvie"'
Austurfjoll is the largest basaltic glaciovolcanic massif at Askja volcano (Central Iceland), and through detailed studies of its volcanological and geochemical characteristics, we provide a detailed account of the sequence and structure of the ice-c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5247227ca2a14d0667e311c24d8b0b58
https://doi.org/10.1007/s00445-019-1269-x
https://doi.org/10.1007/s00445-019-1269-x
Autor:
Kirby D. Young, Richard S. Williams, Gretar Ívarsson, Benedikt Steingrímsson, James L. Aronson, Leo Kristjansson, Freysteinn Sigmundsson, Magnús Á. Sigurgeirsson, Horst Noll, Guðrún Sigríður Jónsdóttir, Sigríður Pálmadóttir, Árni Hjartarson, Karl Grönvold, Amy E. Clifton, David W. McGarvie, Barry Voight, Ólafur G. Flóvenz, Ian McDougall, Roger Buck, Magnús Tumi Guðmundsson, Guðmundur Ómar Friðleifsson, Ingibjörg Kaldal, Jeffrey A. Karson, Carolina Rodríguez, Walter L. Friedrich, Páll Einarsson, G. Larsen, Ingvar Birgir Friðleifsson, Bryndís Brandsdóttir, Mark Jancin
Publikováno v:
Voight, B, Clifton, A, Hjartarson, Á, Steingrímsson, B, Brandsdóttir, B, Rodríguez, C, McGarvie, D, Sigmundsson, F, Ívarsson, G, Friðleifsson, G Ó, Larsen, G, Jónsdóttir, G S, Noll, H, McDougall, I, Kaldal, I, Friðleifsson, I B, Aronson, J L, Karson, J A, Grönvold, K, Young, K D, Kristjánsson, L, Sigurgeirsson, M, Guðmundsson, M T, Jancin, M, Flóvenz, Ó G, Einarsson, P, Williams, R S, Buck, R, Pálmadóttir, S & Friedrich, W 2020, ' A half-century of geologic and geothermic investigations in Iceland : The legacy of Kristján Sæmundsson ', Journal of Volcanology and Geothermal Research, vol. 391, 106434 . https://doi.org/10.1016/j.jvolgeores.2018.08.012
One of the World's premier field geologists, Kristjan Saemundsson led immense geological mapping programs and authored or co-authored nearly all geological maps of Iceland during the past half century, including the first modern bedrock and tectonic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9a1bd08bcf220f23ae8da71af9c8830a
https://doi.org/10.1016/j.jvolgeores.2018.08.012
https://doi.org/10.1016/j.jvolgeores.2018.08.012
Autor:
P. L. Clay, Tiffany L. Barry, David W. McGarvie, Sarah C. Sherlock, Simon P. Kelley, Henner Busemann
Publikováno v:
Chemical Geology. 403:99-110
Major volatile contents (H 2 O, CO 2 , F, Cl, and S) and 40 Ar/ 39 Ar ages have been determined in variably degassed rhyolite obsidians from Pleistocene–Holocene aged subaerial and subglacial eruption environments from the Torfajokull volcanic cent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ea8717c01743da988749833260b5001
https://doi.org/10.1016/j.chemgeo.2015.02.041
https://doi.org/10.1016/j.chemgeo.2015.02.041
Autor:
Christopher Hughes, R. J. Lee, Michael S. Ramsey, Alison Graettinger, I. P. Skilling, David W. McGarvie, K. Reath, M. K. Ellis
Publikováno v:
International Journal of Remote Sensing. 34:7178-7198
The surface geology of the Northern Volcanic Zone in Iceland is dominated by volcanic ridges, central volcanoes, shield volcanoes, and tuyas. The largest features are typically ice-confined glaciovolcanic in origin, and are overlain by voluminous Hol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c3aee0296961452f0b661df510232d8
https://doi.org/10.1080/01431161.2013.817716
https://doi.org/10.1080/01431161.2013.817716
Publikováno v:
Journal of Volcanology and Geothermal Research. 258:143-162
Many volcanoes express a variety of contrasting eruptive styles with behavioural transitions between explosive and effusive activities. Understanding eruptive mechanisms is of key importance but we currently have little insight into the behavioural c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c5d2c2fa22bf147aae353b6b432aa50a
https://doi.org/10.1016/j.jvolgeores.2013.03.021
https://doi.org/10.1016/j.jvolgeores.2013.03.021
Publikováno v:
Bulletin of Volcanology
Smellie, J, Walker, A, McGarvie, D W & Burgess, R 2016, ' Complex circular subsidence structures in tephra deposited on large blocks of ice: Varða tuff cone, Öræfajökull, Iceland ', Bulletin of Volcanology, vol. 78, 56 . https://doi.org/10.1007/s00445-016-1048-x
Smellie, J, Walker, A, McGarvie, D W & Burgess, R 2016, ' Complex circular subsidence structures in tephra deposited on large blocks of ice: Varða tuff cone, Öræfajökull, Iceland ', Bulletin of Volcanology, vol. 78, 56 . https://doi.org/10.1007/s00445-016-1048-x
Several broadly circular structures up to 16 m in diameter, into which higher strata have sagged and locally collapsed, are present in a tephra outcrop on southwest Öræfajökull, southern Iceland. The tephra was sourced in a nearby basaltic tuff co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::98c28c22c26ba2220e06fcc2190a6cf9
http://europepmc.org/articles/PMC7175720
http://europepmc.org/articles/PMC7175720
Publikováno v:
Journal of Volcanology and Geothermal Research. :68-80
Detailed field observations of structures within the flow front of a Holocene trachyandesite lava from Snaefellsnes, Iceland, are presented. The lava provides exceptional three-dimensional exposure of complex brittle and ductile deformation textures
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4aa58b26388fe83caaf48056f5dd046c
https://doi.org/10.1016/j.jvolgeores.2012.07.007
https://doi.org/10.1016/j.jvolgeores.2012.07.007
Publikováno v:
Quaternary Science Reviews. 30:192-209
Rhyolite eruptions in Iceland mostly take place at long-lived central volcanoes, examples of which are found associated with each of the present-day rift-zone ice caps. Subglacial eruptions at Kerlingarfjoll central volcano produced rhyolite tuyas th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4fffe48d2c12de9c53a7d34a49be4f69
https://doi.org/10.1016/j.quascirev.2010.10.011
https://doi.org/10.1016/j.quascirev.2010.10.011
Publikováno v:
Bulletin of Volcanology. 72:523-538
Kerlingarfjoll central volcano is Iceland’s second largest outcrop of Quaternary rhyolite and is part of the Icelandic Western Rift Zone. Geochemical and Ar/Ar age data show that at least 21 different rhyolite eruptions have taken place at Kerlinga
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::31cfe835ae5ff0ccfa557f52335067c5
https://doi.org/10.1007/s00445-010-0344-0
https://doi.org/10.1007/s00445-010-0344-0
Publikováno v:
Journal of Volcanology and Geothermal Research. 185:337-351
The products of andesite and dacite glaciovolcanism at Kerlingarfjoll are unlike others previously described in the literature. Three sequences of lithofacies are described and interpreted here. The andesitic deposits at “Campsite Gully” are divi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eaf5d98033a7deff5763c4515bad7412
https://doi.org/10.1016/j.jvolgeores.2008.12.016
https://doi.org/10.1016/j.jvolgeores.2008.12.016