Results 51 to 60 of about 85,438 (161)

Stratospheric Aerosol Plumes

Journal of Geophysical Research: Atmospheres, Volume 130, Issue 23, 16 December 2025.
Abstract Aerosol eruption plumes in the tropical lower stratosphere appear to rise whereas extra‐tropical plumes do not. We show that this occurs because the Brewer‐Dobson transport circulation is upward in the tropics, and the circulation lifts the tropical aerosol plumes.
M. R. Schoeberl, Y. Wang, R. Ueyama
wiley   +1 more source

Validation of the FALL3D model for the 2008 Chaitén eruption using field and satellite data

Andean Geology, 2013
The 2008 Chaitén Volcano eruption began on 2 May 2008 with an explosive phase that injected large amounts of tephra into the atmosphere. During the first week of the eruption, volcanic ash clouds were transported for hundreds of kilometres over Argentina
María Soledad Osores, Arnau Folch, Estela Collini, Gustavo Villarosa, Adam Durant, Gloria Pujol, José G. Viramonte   +6 more
doaj   +1 more source

On the likelihood of future eruptions in the Chilean Southern Volcanic Zone: interpreting the past century's eruption record based on statistical analyses [PDF]

, 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 eruption
Dzierma, Yvonne, Wehrmann, Heidi
core   +2 more sources

Numerically Efficient Model for the Nucleation, Growth, and Coalescence of Bubbles in Magma

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 11, November 2025.
Abstract We present a numerical model to describe the nucleation, growth, and coalescence of bubbles in a decompressed magma. The new model enables us to calculate the bubble size distribution (BSD) at a low computational cost by taking the bubble mass as a variable.
Masatoshi Ohashi
wiley   +1 more source

A Search for the Near‐Surface Particulate Layer Using Venera 13 In Situ Spectroscopic Observations

Journal of Geophysical Research: Planets, Volume 130, Issue 4, April 2025.
Abstract Whether or not there is a particulate layer in the lowest 10 km of the Venusian atmosphere is still an open question. Some of the past in situ experiments showed the presence of a detached particulate layer, and a few suggested the existence of finely dispersed aerosols, while other instruments supported the idea of no particulate matter in ...
Shubham V. Kulkarni, Patrick G. J. Irwin, Colin F. Wilson, Nikolai I. Ignatiev   +3 more
wiley   +1 more source

Puyehue Cordón -Caulle: post-eruption analysis of changes in stream benthic fauna of Patagonia [PDF]

, 2014
Las erupciones volcánicas son los fenómenos naturales con las consecuencias más variadas y complejas, y tienen efectos importantes en ambientes tanto terrestres como acuáticos.
Juárez, Santiago Martín, Lallement, Mailén Elizabeth, Macchi, Patricio Jorge, Vigliano, Pablo Horacio   +3 more
core  

Wood jam mobility in a morphologically active river in northern Chilean Patagonia

Earth Surface Processes and Landforms, Volume 50, Issue 3, 15 March 2025.
This study examined post‐eruption wood jam mobility and channel changes in the Blanco River. Floodplain collapses led to large sediment yields. High wood jam mobility rates were reported. Larger, less compact wood jams persist in stable areas; new and missing jams are smaller and linked to deposition and erosion, respectively.
Lorenzo Martini, Alberto Paredes, Karla Sánchez, Andrés Iroumé, Lorenzo Picco   +4 more
wiley   +1 more source

The Chaitén rhyolite lava dome: Eruption sequence, lava dome volumes, rapid effusion rates and source of the rhyolite magma

Andean Geology, 2013
We use geologic field mapping and sampling, photogrammetric analysis of oblique aerial photographs, and digital elevation models to document the 2008-2009 eruptive sequence at Chaitén Volcano and to estimate volumes and effusion rates for the lava dome ...
John Stith Pallister, Angela K. Diefenbach, William C. Burton, Jorge Muñoz, Julia P. Griswold, Luis E. Lara, Jacob B. Lowenstern, Carolina E. Valenzuela   +7 more
doaj   +1 more source

Geochemical variations in the Central Southern Volcanic Zone, Chile (38-43°S): The role of fluids in generating arc magmas [PDF]

, 2014
We present new Sr-Nd-Pb-Hf-O isotope data from the volcanic arc (VA, volcanic front and rear arc) in Chile and the backarc (BA) in Argentina of the Central Southern Volcanic Zone in Chile (CSVZ; 38-43°S).
Amante, Andres, Angermann, Bach, Bindeman, Bindeman, Bindeman, Blichert-Toft, Cembrano, Contreras-Reyes, Contreras-Reyes, Douglass, Dungan, Dungan, Dzierma, Dzierma, Eiler, Ewart, Fontignie, Fontignie, Futa, G. Jacques, Geldmacher, Gerlach, Gill, Grevemeyer, H. Wehrmann, Haase, Hamelin, Hanan, Hanan, Harmon, Hermann, Herron, Heydolph, Hickey, Hickey, Hickey-Vargas, Hickey-Vargas, Hildreth, Hoernle, Hoernle, Hofmann, I. Bindeman, Ito, Ito, J. Gill, Jacques, Jicha, K. Hoernle, Kay, Kay, Kay, Kelley, Kimura, Kimura, Kingsley, Klein, Krolikowska-Ciaglo, Le Maitre, Lucassen, Lucassen, Luis E. Lara, López-Escobar, MacDougall, Mahoney, Massaferro, Mattey, McMillan, Morris, Naranjo, Newsom, Norabuena, Pearce, Plank, Pécskay, Ranero, Ranero, Ranero, Reubi, Roy-Barman, Rüpke, Rüpke, Sellés, Sigmarsson, Sigmarsson, Stern, Stern, Sturm, Sun, Tagiri, Tassara, Tebbens, Tebbens, Tormey, Turner, Valley, Vallier, Van Keken, Varekamp, Völker, Völker, Wade, Watt, Wehrmann, Wehrmann, White, Workman   +107 more
core   +1 more source

Hydrologic remobilisation of tephra‐fall deposits: A sedimentological analysis throughout fluvio‐lacustrine systems of North‐West Patagonia

The Depositional Record, Volume 10, Issue 5, Page 670-684, November 2024.
Fluvio‐lacustrine response to tephra‐fall events in proximal to mid‐volcanic settings. Characterisation of volcaniclastic remobilisation processes. The differentiation of downstream tephra transportation by floating processes from secondary lahars. Abstract This paper explores the response to Holocene ash inundation in different sub‐environments of two
Nahuel Losano, Gustavo Villarosa, Débora Beigt, Pablo Amat, Julieta Cottet, Valeria Outes   +5 more
wiley   +1 more source