Search Results - "Valentine, G. A."

Slow-moving and far-travelled dense pyroclastic flows during the Peach Spring super-eruption by Roche, O., Buesch, D. C., Valentine, G. A.

“…Explosive volcanic super-eruptions of several hundred cubic kilometres or more generate long run-out pyroclastic density currents the dynamics of which are…”
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Experimental birth of a maar–diatreme volcano by Ross, P.-S., White, J.D.L., Valentine, G.A., Taddeucci, J., Sonder, I., Andrews, R.G.

“…Maar–diatreme eruptions are hazardous to people and infrastructure, and are also linked to the formation of the kimberlitic variety of diatremes, which is…”
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Groundwater drainage from fissures as a source for lahars by Johnson, P. J., Valentine, G. A., Stauffer, P. H., Lowry, C. S., Sonder, I., Pulgarín, B. A., Santacoloma, C. C., Agudelo, A.

“…One mechanism for generating lahars at volcanoes experiencing unrest is the disruption of internal aquifers. These disruptions can trigger releases of large…”
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Towards Quantitative Volcanic Risk of Pyroclastic Density Currents: Probabilistic Hazard Curves and Maps Around Somma‐Vesuvius (Italy) by Tierz, P., Stefanescu, E. R., Sandri, L., Sulpizio, R., Valentine, G. A., Marzocchi, W., Patra, A. K.

“…Pyroclastic density currents (PDCs) are hot flowing mixtures of gas and pyroclasts that can cause widespread loss of life and structural damage around the…”
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Basaltic tephra from monogenetic Marcath Volcano, central Nevada by Johnson, P.J., Valentine, G.A., Cortés, J.A., Tadini, A.

“…Monogenetic volcanic eruptions are generally assumed to last to tens of years and produce frequent, intermittent explosive activity that creates eruption…”
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Multiphase magmatic flows at Yucca Mountain, Nevada by Dartevelle, S., Valentine, G. A.

“…The proposed Yucca Mountain radioactive waste repository is sited in southern Nevada in a region that has experienced sporadic basaltic volcanism since the…”
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Early-time multiphase interactions between basaltic magma and underground openings at the proposed Yucca Mountain radioactive waste repository by Dartevelle, S., Valentine, G. A.

“…We investigate the interaction between Yucca Mountain repository drifts (horizontal emplacement tunnels) and a hawaiitic magma in three scenarios: (1) a single…”
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Continental basaltic volcanoes — Processes and problems by Valentine, G.A., Gregg, T.K.P.

“…Monogenetic basaltic volcanoes are the most common volcanic landforms on the continents. They encompass a range of morphologies from small pyroclastic…”
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A framework for validation and benchmarking of pyroclastic current models by Esposti Ongaro, T., Cerminara, M., Charbonnier, S. J., Lube, G., Valentine, G. A.

“…Numerical models of pyroclastic currents are widely used for fundamental research and for hazard and risk modeling that supports decision-making and crisis…”
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Emplacement controls for the basaltic-andesitic radial dikes of Summer Coon volcano and implications for flank vents at stratovolcanoes by Harp, A. G., Valentine, G. A.

“…Mafic flank eruptions are common events that pose a serious hazard to the communities and infrastructure often encroaching on the slopes of stratovolcanoes…”
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Shallow plumbing and eruptive processes of a scoria cone built on steep terrain by Harp, A.G., Valentine, G.A.

“…Dark Peak (Lunar Crater Volcanic Field, central Nevada, USA) is an eroded Pliocene, monogenetic basaltic volcano that exposes intrusions while preserving some…”
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Correction to: Emplacement controls for the basaltic-andesitic radial dikes of Summer Coon volcano and implications for flank vents at stratovolcanoes by Harp, A. G., Valentine, G. A.

“…In the article “Emplacement controls for the basaltic-andesitic radial dikes of Summer Coon volcano and implications for flank vents at stratovolcanoes”, the…”
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The effect of pre-existing craters on the initial development of explosive volcanic eruptions: An experimental investigation by Taddeucci, J., Valentine, G. A., Sonder, I., White, J. D. L., Ross, P.-S., Scarlato, P.

“…Most volcanic eruptions occur in craters formed by previous activity. The presence of a crater implies specific confinement geometries, variably filled by…”
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Spatial distribution and structural analysis of vents in the Lunar Crater Volcanic Field (Nevada, USA) by Tadini, A., Bonali, F. L., Corazzato, C., Cortés, J. A., Tibaldi, A., Valentine, G. A.

“…Volcanoes within monogenetic volcanic fields often are arranged in alignments and clusters, which are related to effects of magma source geometry in the upper…”
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Facies distribution of ejecta in analog tephra rings from experiments with single and multiple subsurface explosions by Graettinger, A. H., Valentine, G. A., Sonder, I., Ross, P. -S., White, J. D. L.

“…The volume, grain size, and depositional facies of material deposited outside an explosion crater, ejecta, are sensitive to the depth of the explosion, the…”
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Origin of chemical and isotopic heterogeneity in a mafic, monogenetic volcanic field: A case study of the Lunar Crater Volcanic Field, Nevada by Rasoazanamparany, C., Widom, E., Valentine, G.A., Smith, E.I., Cortés, J.A., Kuentz, D., Johnsen, R.

“…Major and trace element geochemistry and Sr, Nd, Pb, Hf and Os isotope signatures of basaltic lavas and tephra from volcanic centers in the northern Lunar…”
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Transport and deposition processes of the hydrothermal blast of the 6 August 2012 Te Maari eruption, Mt. Tongariro by Breard, E. C. P., Lube, G., Cronin, S. J., Valentine, G. A.

“…The 2012 eruption of Tongariro volcano (New Zealand) produced highly mobile, low-temperature, blast-derived pyroclastic density currents after partial collapse…”
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Scaling multiblast craters: General approach and application to volcanic craters by Sonder, I., Graettinger, A. H., Valentine, G. A.

“…Most volcanic explosions leave a crater in the surface around the center of the explosions. Such craters differ from products of single events like meteorite…”
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Decreasing magmatic footprints of individual volcanoes in a waning basaltic field by Valentine, G. A., Perry, F. V.

“…The distribution and characteristics of individual basaltic volcanoes in the waning Southwestern Nevada Volcanic Field provide insight into the changing…”
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Assessing future vent opening locations at the Somma‐Vesuvio volcanic complex: 2. Probability maps of the caldera for a future Plinian/sub‐Plinian event with uncertainty quantification by Tadini, A., Bevilacqua, A., Neri, A., Cioni, R., Aspinall, W. P., Bisson, M., Isaia, R., Mazzarini, F., Valentine, G. A., Vitale, S., Baxter, P. J., Bertagnini, A., Cerminara, M., Michieli Vitturi, M., Di Roberto, A., Engwell, S., Esposti Ongaro, T., Flandoli, F., Pistolesi, M.

“…In this study, we combine reconstructions of volcanological data sets and inputs from a structured expert judgment to produce a first long‐term probability map…”
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