Recycled ejecta modulating Strombolian explosions
نویسندگان
چکیده
منابع مشابه
An analytical model for gas overpressure in slug-driven explosions: Insights into Strombolian volcanic eruptions
[1] Strombolian eruptions, common at basaltic volcanoes, are mildly explosive events that are driven by a large bubble of magmatic gas (a slug) rising up the conduit and bursting at the surface. Gas overpressure within the bursting slug governs explosion dynamics and vigor and is the main factor controlling associated acoustic and seismic signals. We present a theoretical investigation of slug ...
متن کاملLeidenfrost explosions
We present a fluid dynamics video showing the behavior of Leidenfrost droplets composed by a mixture of water and surfactant (SDS, Sodium Dodecyl sulfate). When a droplet is released on a plate heated above a given temperature a thin layer of vapor isolates the droplet from the plate. The droplet levitates over the plate. This is called the Leidenfrost effect. In this work we study the influenc...
متن کاملRelative partitioning of acoustic and seismic energy during Strombolian eruptions
The relative elastic energy partitioning during Strombolian eruptions can be estimated from acoustic pressure and seismic velocity records. We outline methods for determining acoustic and seismic energies for sensors deployed within several kilometers of erupting vents. We use these energies to introduce the concept of the volcano acoustic–seismic ratio (g, or VASR), which is the ratio of elast...
متن کاملModeling Strombolian eruptions of Karymsky volcano, Kamchatka, Russia
A model is proposed to explain temporal patterns of activity in a class of periodically exploding Stromboliantype andesite volcanoes. These patterns include major events (explosions) which occur every 3^30 min and subsequent tremor with a typical period of 1 s. This two-periodic activity is thought to be caused by two distinct mechanisms of accumulation of the elastic energy in the moving magma...
متن کاملStronger or longer: Discriminating between Hawaiian and Strombolian eruption styles
The weakest explosive volcanic eruptions globally, Strombolian explosions and Hawaiian fountaining, are also the most common. Yet, despite over a hundred years of observations, no classifications have offered a convincing, quantitative way of demarcating these two styles. New observations show that the two styles are distinct in their eruptive time scale, with the duration of Hawaiian fountaini...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Bulletin of Volcanology
سال: 2016
ISSN: 0258-8900,1432-0819
DOI: 10.1007/s00445-016-1001-z