Results 51 to 60 of about 22,175 (200)

Joint inversion of muon tomography and gravimetry - a resolving kernel approach [PDF]

open access: yes, 2014
Both muon tomography and gravimetry are geophysical methods that provide information on the density structure of the Earth's subsurface. Muon tomography measures the natural flux of cosmic muons and its attenuation produced by the screening effect of the
Gibert, Dominique   +2 more
core   +7 more sources

Volcano remote sensing with ground-based spectroscopy [PDF]

open access: yes, 2005
The chemical compositions and emission rates of volcanic gases carry important information about underground magmatic and hydrothermal conditions, with application in eruption forecasting.
Burton M.R   +5 more
core   +1 more source

Multi-method constraints on the age and timescale of silicic small-volume eruptions of Puketerata Volcanic Complex, Taupō Volcanic Zone, New Zealand

open access: yesEarth, Planets and Space, 2023
Accurate dating of young eruptions from explosive volcanoes is essential for forecasting future eruptions and for defining the hazardscape of volcanic fields.
Szabolcs Kósik   +6 more
doaj   +1 more source

Deformations and Morphology Changes Associated with the 2016–2017 Eruption Sequence at Bezymianny Volcano, Kamchatka

open access: yesRemote Sensing, 2019
Lava domes grow by extrusions and intrusions of viscous magma often initiating from a central volcanic vent, and they are frequently defining the source region of hazardous explosive eruptions and pyroclastic density currents.
René Mania   +4 more
doaj   +1 more source

Topography and Volcanology of the Huangtsuishan Volcano Subgroup, Northern Taiwan

open access: yesTerrestrial, Atmospheric and Oceanic Sciences, 2010
Combining the shaded relief topography model and the slope map from the Digital Terrain Model (DTM) images, toporaphical map, field occurrences and petrography, the volcanic sequences of the Huangtsuishan Volcano Subgroup (HVS) can be constructed.
Yu-Ming Lai   +5 more
doaj   +1 more source

Indikasi munculnya Kubah Lava berdasarkan Rekaman Seismik

open access: yesIndonesian Journal on Geoscience, 2014
http://dx.doi.org/10.17014/ijog.vol4no2.20092In the last two decades, there are six volcanoes erupting and are ended up with the growth of lava dome at the crater. Among them, formerly there are three volcanoes that have crater lakes.
S. R. Wittiri
doaj   +1 more source

Breathing and Coughing: The Extraordinarily High Degassing of Popocatépetl Volcano Investigated With an SO2 Camera

open access: yesFrontiers in Earth Science, 2018
How do lava domes release volcanic gases? Studying this problem is crucial to understand, and potentially anticipate, the generation of the sudden and dangerous explosive eruptions that frequently accompany dome extrusions.
Robin Campion   +7 more
doaj   +1 more source

Post-Caldera Eruptions at Chalupas Caldera, Ecuador: Determining the Timing of Lava Dome Collapse, Hummock Emplacement and Dome Rejuvenation

open access: yesFrontiers in Earth Science, 2020
Determining the lithology, extent, origin, and age of hummocks can be challenging, especially if these are covered by successive deposits and lush vegetation. At Chalupas caldera, a late-Pleistocene silicic center that lies astride the Eastern Cordillera
Marco D. Córdova   +3 more
doaj   +1 more source

Effect of temperature on the permeability of lava dome rocks from the 2004–2008 eruption of Mount St. Helens [PDF]

open access: yes, 2016
As magma ascends to shallow levels in the volcanic conduit, volatile exsolution can produce a dramatic increase in the crystal content of the magma.
Chadderton, A   +3 more
core   +1 more source

Observation of the seismic mode «drumbeats» on volcanoes of the world and Kizimen volcano (Russia) [PDF]

open access: yesE3S Web of Conferences, 2019
The squeezing of viscous lava flows or blocks on an extrusive dome during eruptions of andesitic and dacitic volcanoes is accompanied by volcanic earthquakes the seismic mode «drumbeats».
Shakirova Alexandra, Firstov Pavel
doaj   +1 more source

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