Results 11 to 20 of about 1,147,354 (242)

Feeding of a magma chamber by an ascending magma bubble [PDF]

open access: yesGeophysical Journal International, 2021
SUMMARY There is evidence that magma chambers are not fed by a continuous flow, but in the form of discrete magma batches. The possibility is considered that the chamber is fed by a magma bubble ascending through the region underneath, driven by buoyancy force.
Dragoni M.
openaire   +2 more sources

Volatile resorption expedites eruption onset in large silicic systems [PDF]

open access: yesNature Communications
Silicic caldera-forming eruptions are among the most hazardous natural phenomena on Earth, yet their triggering mechanisms remain poorly understood. While volatile exsolution is widely recognized as a potential eruption driver in large silicic systems ...
Franziska Keller   +3 more
doaj   +2 more sources

Shallow magma chamber under the Wudalianchi Volcanic Field unveiled by seismic imaging with dense array

open access: yesGeophysical Research Letters, 2016
The Wudalianchi Volcano Field (WDF) is a typical intraplate volcano in northeast China with generation mechanism not yet well understood. As its last eruption was around 300 years ago, the present risk for volcano eruption is of particular public ...
Zhiwei Li   +6 more
doaj   +2 more sources

Micro-analytical Perspectives on the Bishop Tuff and its Magma Chamber [PDF]

open access: yes, 2015
New in situ major and trace element analytical data are presented for crystals (sanidine, plagioclase, biotite, orthopyroxene, clinopyroxene) and matrix glasses from juvenile materials representing the full Bishop Tuff sequence from the earliest fall ...
K. Chamberlain   +3 more
semanticscholar   +2 more sources

Radiometric Constraints on the Timing, Tempo, and Effects of Large Igneous Province Emplacement

open access: yesGeophysical Monograph Series, Page 27-82., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jennifer Kasbohm   +2 more
wiley  

+2 more sources

Geodetic monitoring of the Changbaishan volcano activity and its relationship with earthquakes, 1999–2017

open access: yesGeodesy and Geodynamics, 2021
The major earthquakes often trigger unrest of surrounding volcanic magma chambers. In recent years, three major earthquakes occurred around the Changbaishan volcano, but it was unclear whether these earthquakes triggered the unrest of the magma chamber ...
Dongzhen Wang   +4 more
doaj   +1 more source

Magma chamber decompression during explosive caldera-forming eruption of Aira caldera

open access: yesCommunications Earth & Environment, 2021
Decompression of a magma chamber is a fundamental condition of caldera collapse. Although theoretical models have predicted the decompression of magma chambers before caldera collapse, few previous studies have demonstrated the amount of magma chamber ...
N. Geshi   +3 more
semanticscholar   +1 more source

Magma chamber stratification of the 1815 Tambora caldera-forming eruption

open access: yesBulletin of Volcanology, 2021
The eruption of the Tambora volcano in 1815 was initiated by two precursory Plinian falls and formed two generations of pyroclastic density current (PDC) deposits. In this study, we found slight changes in phenocrysts (modal mineralogy, content, and size)
I. Suhendro   +4 more
semanticscholar   +1 more source

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