Volcanic eruptions are associated with a wide range of electrostatic effects. Increasing evidence suggests that high-altitude discharges (lightning) in maturing plumes are driven by electrification processes that require the formation of ice (analogous to processes underpinning meteorological thunderstorms). ...
Explosive eruptions are generally characterized by high-noise seismic wavefields produced by strong seismic tremor, explosions, collapses, and many other sources of seismic excitation, causing the surviving, on-scale seismograms in the near-field (<20 km) to be covered with continuous waves that ...
Not all volcanoes currently have eruptions associated with them but have been included to allow for easy expansion of the database as more data are found. Data fields include: magnitude, Volcanic Explosivity Index (VEI), deposit volumes, eruption dates, and rock type. The scientific community ...
Factors controlling the temporal evolution of explosive eruptions A simple model, based on observations of recent explosive eruptions, is proposed for the patterns of variable discharge rate during explosive eruptions. Su... Roberto Scandone - 《Journal of Volcanology & Geothermal Research》 被引量: ...
These studies have focused on subaerial eruptions but whether nanolites exist and can similarly promote increased melt viscosity and enhance eruption explosivity for deep sea eruptions remains unknown. Large pumice rafts are typically associated with explosive eruptions23,24,25,26,27. The 18 July ...
are usually associated with more continuous lava fountaining activity7,10,11. The permeable flow regime, instead, is not associated with a specific style of activity, as effusive, fountaining or highly explosive (sub-Plinian or Plinian) eruptions can occur3depending on the efficiency of gas flow ...
are usually associated with more continuous lava fountaining activity7,10,11. The permeable flow regime, instead, is not associated with a specific style of activity, as effusive, fountaining or highly explosive (sub-Plinian or Plinian) eruptions can occur3depending on the efficiency of gas flow ...
Ash layers in the Lower Tithonian Longing Member (Ameghino Formation) on the Antarctic Peninsula are derived from the fallout of tephra associated with explosive eruptions. These layers are preserved in a complete and continuous sedimentary record formed in a deep, anoxic marine environment, with high...
are illustrated in Table1. The ranges for inlet pressure, inlet temperature, and total crystal content are set to account for uncertainty based on literature data for these parameters46,48,49,50,53. For the conduit radius, we set values to produce MERs consistent with high intensity eruptions ...
Explosive volcanic eruptions of Sakurajima, which were observed in 1981 1999, are analyzed where the time interval τ between two successive explosions is considered as a dynamical variable. Correlation dimensions of the time series τshows that it can not be regarded as a genuine low-dimensional ...