Results 121 to 130 of about 146,104 (239)

Time Varying Crustal Anisotropy at Whakaari/White Island Volcano

open access: yesGeophysical Research Letters
Whakaari/White Island has been the most active New Zealand volcano in the 21st century, producing small phreatic and phreatomagmatic eruptions, which are hard to predict.
D. Y. Mengesha   +3 more
doaj   +1 more source

Surface eruptive dynamics of 2018 small phreatic eruption of Iwo-Yama volcano, Japan: Constraints from seismo-acoustic observation and mud suspension rheology

open access: yesJournal of Volcanology and Geothermal Research, 2021
Dan Muramatsu   +4 more
semanticscholar   +1 more source

Polynesian settlement of New Zealand and the impacts of volcanism on early Maori society: An update [PDF]

open access: yes, 2008
Presents an overview of the timing of Polynesian settlement in New Zealand, discussing the application of tephrochronology and rat and avian bone dating to the problem.
Lowe, David J.
core   +1 more source

A numerical model for precursory time sequences of the phreatic eruptions of Mt. Ontake, central Japan

open access: yesEarth, Planets and Space
The 2014 phreatic eruption of Mt. Ontake was preceded by increased volcano-tectonic (VT) seismicity, but all other types of precursors were obscure. A subsurface process leading to eruption with few precursors has yet to be identified.
Yuta Maeda
doaj   +1 more source

Phreatomagmatic eruption during the buildup of a Triassic carbonate platform (Oman Exotics): eruptive style, associated deformations, and implications on CO2 release by volcanism [PDF]

open access: yes, 2006
Oman exotics represent remnants of a Triassic carbonate platform (Misfah Formation). Within these carbonates, and coeval with the sedimentation, several basaltic magmatic events occurred mainly as intrusions, also as lava flows and projections.
Basile, Christophe, Chauvet, François
core   +1 more source

Volcanic impact on stratospheric aerosol chemistry [PDF]

open access: yes
Samples collected by the National Center for Atmospheric Research (NCAR) using the multiple-filter sampler on the U-2 were analyzed. The sampler is capable of exposing a number of 110 mm filters in sequence to ram air flow.
Zoller, W. H.
core   +1 more source

Geological study of phreatic eruptions

open access: yesThe Journal of the Geological Society of Japan, 2018
Teruki Oikawa   +3 more
openaire   +2 more sources

Decrypting the sediment record of very late stage volcanic activities in Tatun volcano group, Northern Taiwan: evidence from ashy deposits

open access: yesTerrestrial, Atmospheric and Oceanic Sciences
The Tatun Volcano Group (TVG) is an active volcano on Taiwan and poses a potential threat to public safety in northern Taiwan. Currently, the youngest eruption records among the TVG occurred around Mt. Chihsing in the late Pleistocene.
Guo-Teng Hong   +4 more
doaj   +1 more source

Seismic background level (SBL) growth can reveal slowly developing long-term eruption precursors. [PDF]

open access: yesSci Rep, 2023
Ichihara M   +5 more
europepmc   +1 more source

Monitoring of magmatic-hydrothermal system by noble gas and carbon isotopic compositions of fumarolic gases. [PDF]

open access: yesSci Rep, 2022
Obase T   +7 more
europepmc   +1 more source

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