Results 81 to 90 of about 22,175 (200)

Factors controlling lava dome morphology [PDF]

open access: yes
Research suggests that variations in lava dome morphology on different planets will depend much more critically on local gravity and the style of eruption than on the magma composition, ambient temperature, or the relative roles of convective and ...
Bridges, Nathan   +2 more
core   +1 more source

Observations of two special kinds of tremor at Galeras volcano, Colombia(1989-1991)

open access: yesAnnals of Geophysics, 1999
Since the reactivation of Galeras volcano in 1988 its seismic activity has been dominated by a variety of LP waveforms and tremor events. Some of these signals occurred as a response to volcanic activity.
F. Gil-Cruz
doaj   +1 more source

The Eruption of Submarine Rhyolite Lavas and Domes in the Deep Ocean – Havre 2012, Kermadec Arc

open access: yesFrontiers in Earth Science, 2018
Silicic effusive eruptions in deep submarine environments have not yet been directly observed and very few modern submarine silicic lavas and domes have been described.
Fumihiko Ikegami   +5 more
doaj   +1 more source

Advanced Applications of Synthetic Aperture Radar (SAR) Remote Sensing for Detecting Pre- and Syn-eruption Signatures at Mount Sinabung, North Sumatra, Indonesia

open access: yesIndonesian Journal on Geoscience, 2019
Mount Sinabung was re-activated at August 28th, 2010 after a long repose interval. The early stage of a phreatic eruption was then followed by magmatic eruptions at September 15th, 2013 for years until now.
Asep Saepuloh   +2 more
doaj   +1 more source

The Nature of Cima Dome [PDF]

open access: yes, 1954
In the Mojave Desert of southeasternmost California is a remarkably smooth, symmetrical rock-alluvial dome which takes its name from Cima on the Union Pacific Railroad. Lawson (1915, pp.
Sharp, Robert P.
core  

Dating Lava Domes in California's Salton Trough

open access: yesEos, 2015
Scientists use a trio of techniques to resolve the age and duration of rhyolite volcanism of the Salton Buttes.
openaire   +1 more source

Deformasi Gunung Kelud Pascapembentukan Kubah Lava November 2007

open access: yesIndonesian Journal on Geoscience, 2014
DOI: 10.17014/ijog.v5i1.90The eruption of Kelud Volcano in 2007 was started with an increase in the seismic activity on September 2007. It was ended with a lava dome formation inside the crater lake on 3 November 2007.
Nia Haerani, M. Hendrasto, H. Z. Abidin
doaj   +1 more source

A volcano's pulse [PDF]

open access: yes, 2010
Before the 1995 Soufrière Hills eruption began, there had been seismic crises approximately every 30 years since the late 1890s; each crisis lasted months to years and involved thousands of small earthquakes. In 1935, some earthquakes were large enough
Loughlin, Sue
core  

The geometric spectrum of lava domes and spines

open access: yesVolcanica
Extrusion of viscous lava produces domes and spines, collapses of which pose a significant local hazard. Understanding extrusion processes and probabilistic hazard estimation require comprehensive datasets of geometric parameters. We introduce Morphology of Viscous Extrusions (MoVE), a collation of 323 observations of height and width from 80 ...
Myers, Amy   +4 more
openaire   +4 more sources

Muons tomography applied to geosciences and volcanology

open access: yes, 2012
Imaging the inner part of large geological targets is an important issue in geosciences with various applications. Dif- ferent approaches already exist (e.g.
Acquafredda   +26 more
core   +3 more sources

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