Zobrazeno 1 - 10
of 493
pro vyhledávání: '"Donald B, Dingwell"'
Publikováno v:
Communications Earth & Environment, Vol 5, Iss 1, Pp 1-11 (2024)
Abstract In the Earth, the flow of crystal-bearing magma is thought to be non-Newtonian and shear thinning, but the physical origin for this is poorly understood. We use hydro-granular theory to show that the decoupled migration of crystals toward co
Externí odkaz:
https://doaj.org/article/9b2fc4a51cbc449fb8394bb7dc5c53e0
Publikováno v:
Frontiers in Earth Science, Vol 12 (2024)
Externí odkaz:
https://doaj.org/article/8d12575de41845588b4009d923eda6b2
Autor:
Adrian J. Hornby, Paul M. Ayris, David E. Damby, Spyridon Diplas, Julia Eychenne, Jackie E. Kendrick, Corrado Cimarelli, Ulrich Kueppers, Bettina Scheu, James E. P. Utley, Donald B. Dingwell
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-10 (2024)
Abstract Explosive volcanic eruptions produce vast quantities of silicate ash, whose surfaces are subsequently altered during atmospheric transit. These altered surfaces mediate environmental interactions, including atmospheric ice nucleation, and to
Externí odkaz:
https://doaj.org/article/31558132eac1448cbf981379327ba1fb
Autor:
Francisco Cáceres, Kai-Uwe Hess, Michael Eitel, Markus Döblinger, Kelly N. McCartney, Mathieu Colombier, Stuart A. Gilder, Bettina Scheu, Melanie Kaliwoda, Donald B. Dingwell
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-11 (2024)
Abstract Explosivity in erupting volcanoes is controlled by the degassing dynamics and the viscosity of the ascending magma in the conduit. Magma crystallisation enhances both heterogeneous bubble nucleation and increases in magma bulk viscosity. Nan
Externí odkaz:
https://doaj.org/article/b3cb2557194a4c2eb830534b4631399b
Autor:
Simon Thivet, Luiz Pereira, Nicolas Menguy, Étienne Médard, Pauline Verdurme, Carole Berthod, David Troadec, Kai-Uwe Hess, Donald B. Dingwell, Jean-Christophe Komorowski
Publikováno v:
Communications Earth & Environment, Vol 4, Iss 1, Pp 1-14 (2023)
Abstract Nanoscale liquid immiscibility is observed in the 2018–2021 Fani Maoré submarine lavas (Comoros archipelago). Heat transfer calculations, Raman spectroscopy, scanning and transmission electron microscopy reveal that in contrast to thin (5
Externí odkaz:
https://doaj.org/article/103caffecef84c8f8e0fb9fe04b5d4c9
Autor:
Christina Springsklee, Bettina Scheu, Christoph Seifert, Michael Manga, Corrado Cimarelli, Damian Gaudin, Oliver Trapp, Donald B. Dingwell
Publikováno v:
Volcanica, Vol 6, Iss 2, Pp 437-445 (2023)
Explosive volcanic eruptions generate electrical discharges, a phenomenon termed volcanic lightning (VL). VL is increasingly well-investigated and monitored for modern eruptions, however volcanism has been active since Earth’s origin. Thus, investi
Externí odkaz:
https://doaj.org/article/d38729f91ebf40f5955b3e7ae947cfac
Autor:
A. Zeynep Çalışkanoğlu, Alessandra S. B. Camara, Corrado Cimarelli, Donald B. Dingwell, Kai-Uwe Hess
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-10 (2023)
Abstract Fulgurites have been documented in geological deposits from throughout Earth's history. They have also been assigned a potential role in prebiotic chemistry as a source of reactants. Fulgurites are generated in nature by cloud-to-ground ligh
Externí odkaz:
https://doaj.org/article/99f8feb4442a43d69f70642a953a8d57
Publikováno v:
Volcanica, Vol 6, Iss 1, Pp 95-106 (2023)
Observations and measurements on active volcanoes are commonly conducted at a distance considered safe from the inherent dangers linked to volcanic explosions. This reduction in proximity adds a degree of uncertainty to the interpretation of monitori
Externí odkaz:
https://doaj.org/article/111b4dfc911a473899adcbadffe28190
Autor:
Tobias Keller, Fernando Tornos, John M. Hanchar, Dorota K. Pietruszka, Arianna Soldati, Donald B. Dingwell, Jenny Suckale
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-14 (2022)
Can volcanoes erupt ore deposits? This study combines observations, experiments, and simulations to show that iron ore deposits on El Laco volcano formed by eruption of melt sourced from separation of Fe-rich melt from a silicate magma body beneath.
Externí odkaz:
https://doaj.org/article/74a48b924b834e22b1d13dda0cc93c19
Autor:
Luiz Pereira, Fabian B. Wadsworth, Jérémie Vasseur, Markus Schmid, Simon Thivet, Rafael B. Nuernberg, Donald B. Dingwell
Publikováno v:
Royal Society Open Science, Vol 10, Iss 6 (2023)
In Argentina, some people add peanuts to their beer. Once immersed, the peanuts initially sink part way down into the beer before bubbles nucleate and grow on the peanut surfaces and remain attached. The peanuts move up and down within the beer glass
Externí odkaz:
https://doaj.org/article/537395a2eeaa4949abbbd45304a000da