Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Mathieu Colombier"'
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:
Fabian Ben Wadsworth, Holly E Unwin, Jérémie Vasseur, Ben M Kennedy, Julia Holzmueller, Bettina Scheu, Taylor Witcher, Janina Adolf, Francisco Cáceres, Ana S Casas, Valeria Cigala, Alexandra Clement, Mathieu Colombier, Shane Cronin, Marcel Cronin, Donald B Dingwell, Leticia F Guimarães, Laura Höltgen, Ulrich Kueppers, Gilles Seropian, Sönke Stern, Adrien Teissier, Caron Vossen, Natalie Weichselgartner
Publikováno v:
Volcanica, Vol 1, Iss 2, Pp 107-126 (2018)
Accurate predictions of volcanological phenomena, such as the trajectory of blocks accelerated by volcanic explosions, require quantitative skills training. Large outdoor experiments can be useful to convey concepts of volcanic processes to students
Externí odkaz:
https://doaj.org/article/b04cdf0194fe4e8898d5250a602a0198
Autor:
Mathieu Colombier, Heather Wright, Michael Manga, Benjamin Bernard, Pablo Samaniego, Francisco Cáceres, Jeremie Vasseur, Kudakwashe Jakata, Donald Dingwell
Breadcrust bombs are typical products of Vulcanian eruptions. The exteriors of such pyroclasts experience rapid quenching after fragmentation and hence preserve a dense crust with no or limited textural change. The core of breadcrust bombs can instea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c1451a73fd336153d3a335a28e58933a
https://doi.org/10.5194/egusphere-egu23-11641
https://doi.org/10.5194/egusphere-egu23-11641
Autor:
Francisco Cáceres, Jacopo Taddeucci, Mathieu Colombier, Javiera Terán, Joaquin Flores, Kai-Uwe Hess, Caron E.J. Vossen, Donald B. Dingwell
All magmas form crystals upon cooling and volatile loss, following shifts in the melt liquidus during both decompressive ascent and eruption. Crystallisation modifies the melt chemistry and adds solid particles (crystals) in suspension in a magma. Bo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::000bf3716fc9e6fdbd05323d3efd4e26
https://doi.org/10.5194/egusphere-egu23-17320
https://doi.org/10.5194/egusphere-egu23-17320
Autor:
Mathieu Colombier, Benjamin Bernard, Heather Wright, Jean-Luc Le Pennec, Francisco Cáceres, Corrado Cimarelli, Michael J. Heap, Pablo Samaniego, Jérémie Vasseur, Donald B. Dingwell
Stratovolcanoes are often characterized by cyclic eruptive activity marked by effusive-explosive transitions between dome-forming and Plinian eruptions. Guagua Pichincha volcano (Ecuador) has been a location of such cyclicity for the past ~2000 years
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7617b4ad1bddf71e03c34b6f621fd03
https://doi.org/10.5194/egusphere-egu22-4160
https://doi.org/10.5194/egusphere-egu22-4160
Autor:
Donald B. Dingwell, Bernhard Ruthensteiner, Corrado Cimarelli, Francisco Cáceres, Bettina Scheu, Melanie Kaliwoda, Kai-Uwe Hess, Claudio Madonna, Mathieu Colombier, Fabian B. Wadsworth
Publikováno v:
Geology, 2020, Vol.48(10), pp.997-1001 [Peer Reviewed Journal]
Geology
Geology
Degassing dynamics play a crucial role in controlling the explosivity of magma at erupting volcanoes. Degassing of magmatic water typically involves bubble nucleation and growth, which drive magma ascent. Crystals suspended in magma may influence bot
Autor:
Caron E. J. Vossen, Bettina Scheu, Donald B. Dingwell, Michael J. Heap, Fabian B. Wadsworth, Diana Schmid, Mathieu Colombier
Publikováno v:
American journal of physics, 2020, Vol.88(1), pp.20-24 [Peer Reviewed Journal]
American Journal of Physics
American Journal of Physics, American Association of Physics Teachers, 2019, 88 (1), pp.20-24. ⟨10.1119/10.0000296⟩
American Journal of Physics
American Journal of Physics, American Association of Physics Teachers, 2019, 88 (1), pp.20-24. ⟨10.1119/10.0000296⟩
Permeability is a macroscopic property of materials with a percolating pore phase, such as many rocks and filters. We describe a simple experiment for the empirical determination of permeability using a low-cost method similar to that used by Darcy.
Autor:
Donald B. Dingwell, Mathieu Colombier, Bernhard Ruthensteiner, Kai-Uwe Hess, Yves Feisel, Bettina Scheu, Francisco Cáceres
Publikováno v:
Earth and Planetary Science Letters
Silicic magmas span a wide range of eruptive styles between explosive and effusive, and transitions between these styles are commonplace. Yet the triggers of switches in eruptive style remain poorly understood. Eruptions are mostly driven by degassin
Autor:
Shane J. Cronin, Donald B. Dingwell, Bernhard Ruthensteiner, Manuela Tost, Mathieu Colombier, Katherine J. Dobson, Kai-Uwe Hess, Sebastian Mueller, Fabian B. Wadsworth, Ulrich Kueppers, Bettina Scheu
Publikováno v:
Geology, 2019, Vol.47(2), pp.179-182 [Peer Reviewed Journal]
Some of the most complex volcanic thermodynamic processes occur when erupting magma interacts with water. In shallow water, “Surtseyan” eruptions are spectacular, and they efficiently fragment magma into fine ash particles. The aviation hazard fr
Previous studies of Vulcanian eruptive products have shown that the respective volcanic conduits were filled for themost part with low-porosity magma prior to eruption. Comparison with the theoretical porosity distributionexpected from closed-system
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c300df5a72542030ca49c1e675602b4
https://doi.org/10.5194/egusphere-egu21-15923
https://doi.org/10.5194/egusphere-egu21-15923