Results 41 to 50 of about 45,330 (119)
Earth, Planets and SpaceVulcanian eruptions, characterized by intermediate magma compositions, pose significant hazards due to their potential for both magmatic and phreatomagmatic fragmentation.
Wildan N. Hamzah +8 more
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Pyroclastic deposits and volcanic history of Mayor Island [PDF]
, 1981 The emergent summit of Mayor Island, Bay of Plenty, New Zealand, is a peralkaline rhyolite volcano constructed by: a sequence of lava flows, the Tutaretare Rhyolite Formation(new); and pyroclastic deposits, the Oira Pyroclastite Formation (new).
Nelson, Campbell S. +2 more
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Advective structures of the bottom of lake Natron and its surroundings (Tanzania)
Руды и металлы, 2022 In this study we consider the features of the development of weakly lithified bottom sediments and the general structure of lake Natron against the background of its seasonal drying and watering.
Alexander N. Baryshev
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VolcanicaDespite involving no fresh magma, phreatic eruptions are increasingly found to contain juvenile material. This study seeks to determine whether the glass is the result of an input of new magma or shallow stalled magma passively entrained.
Emily Mick, Geoffroy Avard, John Stix
doaj +1 more source
JGEET: Journal of Geoscience, Engineering, Environment and Technology, 2022 The Dieng volcanic complex (DVC) has one of the densest post-caldera volcanisms activity presents in Indonesia, yet its population density is considerably high.
Indranova Suhendro +2 more
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Geophysical Research Letters, 2016 In 2012, two phreatic eruptions occurred at New Zealand's Tongariro volcano for the first time in over a century. Interferometric Synthetic Aperture Radar data collected by the Italian Space Agency's COSMO‐SkyMed satellite constellation, indicates up to ...
I. J. Hamling +2 more
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Aeromagnetic survey in Kusatsu-Shirane volcano, central Japan, by using an unmanned helicopter
Earth, Planets and Space, 2021 Kusatsu-Shirane volcano is one of the active volcanoes in Japan. Phreatic explosions occurred in Mt. Shirane in 1983 and most recently, in 2018, in Mt. Motoshirane.
Takao Koyama +9 more
doaj +1 more source
The August 2010 Phreatic Eruption of Mount Sinabung, North Sumatra
Indonesian Journal on Geoscience, 2013 DOI: 10.17014/ijog.v8i1.155Mount Sinabung, located in Karo Regency, North Sumatra Province, is a strato volcano having four active craters. Since its latest eruption about 1,200 year ago, a phreatic eruption occurred on August 27th, 2010. The eruption took place in Crater-I, which was initiated by a greyish white plume and then followed by black plumes
Igan S. Sutawidjaja +2 more
openaire +3 more sources
Accurate hindcasting of explosive eruptions at Whakaari, New Zealand
VolcanicaPhreatic eruptions are small, sudden events, commonly with few precursory signals. They are driven by interactions between magmatic and hydrothermal processes at shallow levels beneath the surface.
John Stix, Craig Miller, Yajing Liu
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Hydrothermal alteration and sealing at Turrialba as a mechanism for phreatic eruption triggering
, 2021 <p>Turrialba is a basaltic to andesitic Holocene stratovolcano that after decades of quiescence re-activated in 1996 and has been highly active ever since. Turrialba is characterized by a highly active magmatic-hydrothermal system, and we propose that hydrothermal sealing and volatile accumulation are the mechanisms responsible for the ...
Emily Mick +3 more
openaire +2 more sources