Results 31 to 40 of about 6,498 (271)
Geophysical Research Letters, 2023 A pyroclastic density current (PDC) is characterized by its strong stratification of particle concentration; it consists of upper dilute and lower dense currents, which generally control the dynamics and deposits of PDCs, respectively.
Hiroyuki A. Shimizu +2 more
doaj +1 more source
A theoretical model of Surtseyan bomb fragmentation [PDF]
, 2021 Surtseyan eruptions are an important class of mostly basaltic volcanic eruptions first identified in the 1960s, where erupting magma at an air-water interface interacts with large quantities of slurry, a mixture of previously ejected tephra that re-enters the crater together with water.
arxiv +1 more source
Gaussberg: volcanology and petrology
, 2020 Photomicrographs of representative lamproite lavas and enclaves from ...
J.L. Smellie (9004769) +1 more
openaire +2 more sources
Exploring and Modeling the Magma–Hydrothermal Regime
Geosciences, 2020 This special issue comprises 12 papers from authors in 10 countries with new insights on the close coupling between magma as an energy and fluid source with hydrothermal systems as a primary control of magmatic behavior.
John Eichelberger +4 more
doaj +1 more source
Записки Горного института, 2023 The temperature in the Valley of Geysers (Kamchatka) geothermal reservoir calculated using the feldspar Na-K-geothermometer has been steadily increasing over the past 10 years on average from 165 to 235 °C, which is close to the temperature values of a ...
Anastasia V. Sergeeva +6 more
doaj
Volcanica, 2023 We modelled ground deformation at Soufrière Hills Volcano (SHV), using data collected by the Montserrat Volcano Observatory from 2010–2019. We investigate the combined use of Electronic Distance Measuring (EDM) and Global Positioning System (GPS) to ...
Alexander Johnson +4 more
doaj +1 more source
Volcanic Geological Sites in UGGp European Geoparks: Special Issue [PDF]
Geoconservation Research, 2023 In this Special Issue, we present 11 of the 15 geoparks that show key aspects of the past and current volcanic development of Europe. The sites include currently active locations along the mid-Atlantic ridge, from the Canary Islands and the Azores in the
João Carlos Nunes, Michael Benton
doaj +1 more source
Chapter 5.4a Marie Byrd Land and Ellsworth Land: volcanology
Memoirs, 2021 Nineteen large (2348–4285 m above sea level) central polygenetic alkaline shield-like composite volcanoes and numerous smaller volcanoes in Marie Byrd Land (MBL) and western Ellsworth Land rise above the West Antarctic Ice Sheet (WAIS) and comprise the ...
T. Wilch, W. Mcintosh, K. Panter
semanticscholar +1 more source
Ionospheric seismology and volcanology
Proceedings of the XXXVth URSI General Assembly and Scientific Symposium – GASS 2023, 2023 Large earthquakes and volcanic eruptions disturb ionosphere in various ways, and we can observe them with global navigation satellite system receivers as changes in total electron content (TEC), number of electrons along the line-of-sights connecting the receivers and the satellites. I first review ionospheric disturbances related to earthquakes.
openaire +2 more sources
Chapter 4.1a Antarctic Peninsula: volcanology
Memoirs, 2021 The Antarctic Peninsula is distinguished by late Neogene volcanic activity related to a series of northerly younging ridge crest–trench collisions and the progressive opening of ‘slab windows’ in the subjacent mantle.
J. Smellie, M. Hole
semanticscholar +1 more source