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1461“…Explosive volcanic super-eruptions of several hundred cubic kilometres or more generate long run-out pyroclastic density currents the dynamics of which are poorly understood and controversial. …”
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1462por Guzzetti, Fausto“…This is similar to other natural hazards, including hurricanes, earthquakes, volcanic eruptions, floods, and droughts. Due to the severe impact of landslides on the population, the environment, and the economy, forecasting landslides is of scientific interest and of societal relevance, and scientists attempting to forecast landslides face known and new problems intrinsic to the multifaceted interactions between science, decision-making, and the society. …”
Publicado 2016
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1463por Mucek, Adonara E., Danišík, Martin, de Silva, Shanaka L., Schmitt, Axel K., Pratomo, Indyo, Coble, Matthew A.“…Toba Caldera, Indonesia, caused the greatest volcanic catastrophe of the last 100 kyr, climactically erupting ∼74 ka. …”
Publicado 2017
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1464por Ripepe, Maurizio, Pistolesi, Marco, Coppola, Diego, Delle Donne, Dario, Genco, Riccardo, Lacanna, Giorgio, Laiolo, Marco, Marchetti, Emanuele, Ulivieri, Giacomo, Valade, Sébastien“…We suggest that a gravity-driven model can shed light on similar cases of lateral effusive eruptions in other volcanic systems and can provide evidence of the roles of slow decompression rates in triggering violent paroxysmal explosive eruptions, which occasionally punctuate the effusive phases at basaltic volcanoes.…”
Publicado 2017
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1465por Paulatto, Michele, Laigle, Mireille, Galve, Audrey, Charvis, Philippe, Sapin, Martine, Bayrakci, Gaye, Evain, Mikael, Kopp, Heidrun“…Clustering of seismicity at 120–160 km depth suggests that the slab’s mantle dehydrates beneath the volcanic arc, and may be the main source of fluids triggering arc magma generation. …”
Publicado 2017
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1466“…We propose that the source of the nickel anomalies at the P-T boundary were Ni-rich volatiles released by the Siberian volcanism, and by coeval Ni-rich magma intrusions. …”
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1467por Becraft, Eric D., Woyke, Tanja, Jarett, Jessica, Ivanova, Natalia, Godoy-Vitorino, Filipa, Poulton, Nicole, Brown, Julia M., Brown, Joseph, Lau, M. C. Y., Onstott, Tullis, Eisen, Jonathan A., Moser, Duane, Stepanauskas, Ramunas“…Our analyses suggest that Rokubacteria are distributed globally in diverse terrestrial ecosystems, including soils, the rhizosphere, volcanic mud, oil wells, aquifers, and the deep subsurface, with no reports from marine environments to date.…”
Publicado 2017
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1468“…Convection provides the mechanism behind plate tectonics, which allows oceanic lithosphere to be subducted into the mantle as “slabs” and new rock to be generated by volcanism. Stagnation of subducting slabs and deflection of rising plumes in Earth’s shallow lower mantle have been suggested to result from a viscosity increase at those depths. …”
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1469por Zhang, L. Q., Zhang, C. H., Li, J. J., Meng, Y. C., Yang, Y. T., Song, Y., Ding, Z. N., Yan, T. X.“…SEM images display that the Al, O, and C elements appear on the GaN surface, along with a spiral-like, layered volcanic-cone structure formed at the highest-fluence irradiation. …”
Publicado 2018
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1470por Lamur, Anthony, Lavallée, Yan, Iddon, Fiona E., Hornby, Adrian J., Kendrick, Jackie E., von Aulock, Felix W., Wadsworth, Fabian B.“…We demonstrate that columnar jointing takes place well within the solid state of volcanic rocks, and is followed by a nonlinear increase in system permeability of <9 orders of magnitude during cooling. …”
Publicado 2018
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1471por Guieu, Cécile, Bonnet, Sophie, Petrenko, Anne, Menkes, Christophe, Chavagnac, Valérie, Desboeufs, Karine, Maes, Christophe, Moutin, Thierry“…In the Western Tropical South Pacific, patches of high chlorophyll concentrations linked to the occurrence of N(2)-fixing organisms are found in the vicinity of volcanic islands. The survival of these organisms relies on a high bioavailable iron supply whose origin and fluxes remain unknown. …”
Publicado 2018
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1472por Postberg, Frank, Khawaja, Nozair, Abel, Bernd, Choblet, Gael, Glein, Christopher R., Gudipati, Murthy S., Henderson, Bryana L., Hsu, Hsiang-Wen, Kempf, Sascha, Klenner, Fabian, Moragas-Klostermeyer, Georg, Magee, Brian, Nölle, Lenz, Perry, Mark, Reviol, René, Schmidt, Jürgen, Srama, Ralf, Stolz, Ferdinand, Tobie, Gabriel, Trieloff, Mario, Waite, J. Hunter“…Through warm cracks in the crust(3) a cryo-volcanic plume ejects ice grains and vapour into space(4–7), providing access to materials originating from the ocean(8,9). …”
Publicado 2018
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1473por Girault, Frédéric, Adhikari, Lok Bijaya, France-Lanord, Christian, Agrinier, Pierre, Koirala, Bharat P., Bhattarai, Mukunda, Mahat, Sudhan S., Groppo, Chiara, Rolfo, Franco, Bollinger, Laurent, Perrier, Frédéric“…Here we report spectacular non-volcanic CO(2) emissions and hydrothermal disturbances at the front of the Nepal Himalayas following the deadly 25 April 2015 Gorkha earthquake (moment magnitude M(w) = 7.8). …”
Publicado 2018
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1474The influence of water in silicate melt on aluminium excess in plagioclase as a potential hygrometerpor Fiedrich, Alina M., Martin, Lukas H. J., Storck, Julian-C., Ulmer, Peter, Heinrich, Christoph A., Bachmann, Olivier“…Measuring water contents of magmas is fundamental to resolving a number of geological questions, such as the mechanisms of silicic magma evolution, the triggering of volcanic eruptions, and the formation of porphyry copper deposits. …”
Publicado 2018
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1475“…Prehistoric timescales, volcanic hazard assessment, and understanding of volcanogenic climate events rely on accurate dating of prehistoric eruptions. …”
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1476por Day, James M. D., Tait, Kimberly T., Udry, Arya, Moynier, Frédéric, Liu, Yang, Neal, Clive R.“…Shergottites have lower Nb/Y at a given Zr/Y than nakhlites or chassignites, a relationship nearly identical to terrestrial Hawaiian main shield and rejuvenated volcanism. Nakhlite and chassignite compositions are consistent with melting of hydrated and metasomatized depleted mantle lithosphere, whereas shergottite melts originate from deep mantle sources. …”
Publicado 2018
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1477por Delrieu-Trottin, Erwan, Williams, Jeffrey T., Pitassy, Diane, Driskell, Amy, Hubert, Nicolas, Viviani, Jérémie, Cribb, Thomas H., Espiau, Benoit, Galzin, René, Kulbicki, Michel, Lison de Loma, Thierry, Meyer, Christopher, Mourier, Johann, Mou-Tham, Gérard, Parravicini, Valeriano, Plantard, Patrick, Sasal, Pierre, Siu, Gilles, Tolou, Nathalie, Veuille, Michel, Weigt, Lee, Planes, Serge“…This dataset is a DNA barcode reference library (fragment of Cytochrome Oxydase I gene) for 2,190 specimens representing at least 540 species of shore fishes collected over 10 years at 154 sites across the four volcanic archipelagos of French Polynesia; the Austral, Gambier, Marquesas and Society Islands, a 5,000,000 km(2) area. …”
Publicado 2019
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1478por Botté, Emmanuelle S., Nielsen, Shaun, Abdul Wahab, Muhammad Azmi, Webster, John, Robbins, Steven, Thomas, Torsten, Webster, Nicole S.“…Here we assess the possible effects of ocean acidification on the metabolic potential of sponge symbionts, inferred by metagenomic analyses of the microbiomes of two sponge species sampled at a shallow volcanic CO(2) seep and a nearby control reef. When comparing microbial functions between the seep and control sites, the microbiome of the sponge Stylissa flabelliformis (which is more abundant at the control site) exhibits at the seep reduced potential for uptake of exogenous carbohydrates and amino acids, and for degradation of host-derived creatine, creatinine and taurine. …”
Publicado 2019
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1479por Hutchison, William, Babiel, Rainer J., Finch, Adrian A., Marks, Michael A. W., Markl, Gregor, Boyce, Adrian J., Stüeken, Eva E., Friis, Henrik, Borst, Anouk M., Horsburgh, Nicola J.“…Earth’s surface and mantle sulphur reservoirs are connected via subduction, crustal recycling and volcanism. Although oceanic hotspot lavas currently provide the best constraints on the deep sulphur cycle, their restricted age range (<200 Ma) means they cannot reveal temporal variations in crustal recycling over Earth history. …”
Publicado 2019
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1480“…Radiocarbon dating of terrestrial plant fossils reveals that the investigated catchment was unglaciated and vegetated between 30 and 20 ka B.P. during the global Last Glacial Maximum. The presence of volcanic ash from a contemporaneous Azorean eruption also provides evidence for ice-free conditions. …”
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