Results 1 to 10 of about 418,217 (192)

Magma convection favors ephemeral melt-rich bodies within mushy reservoirs [PDF]

open access: yesNature Communications
Magma convection is a mechanism that greatly enhances heat transfer from mobilizable, crystal-poor magma bodies to the surrounding immobile, crystal-rich mush reservoir of Earth’s igneous systems.
Jie Chen   +2 more
doaj   +3 more sources

The Prevalence and Significance of Offset Magma Reservoirs at Arc Volcanoes

open access: yesGeophysical Research Letters, 2020
Determining the spatial relations between volcanic edifices and their underlying magma storage zones is fundamental for characterizing long‐term evolution and short‐term unrest.
Shaul Hurwitz   +2 more
exaly   +2 more sources

Magma reservoir growth and ground deformation preceding the 79 CE Plinian eruption of Vesuvius [PDF]

open access: yesCommunications Earth & Environment, 2023
The 79 CE eruption of Vesuvius is the first documented Plinian eruption, also famous for the archaeological ruins of Pompeii and Herculaneum. Although much is known regarding the eruption dynamics and magma reservoir, little is known about the reservoir ...
Domenico M. Doronzo   +7 more
doaj   +2 more sources

Long-period microseismicity reveals cryptic earthquake-triggered fluid activity can facilitate caldera eruptions [PDF]

open access: yesNature Communications
Spatiotemporal correlations between moderate-to-large earthquakes and volcanic eruptions indicate that earthquake-induced stress changes can trigger eruptions.
Zilin Song   +7 more
doaj   +2 more sources

Redox and magma recharge controls on excess sulfur build-up at Mount Samalas, 1257 CE [PDF]

open access: yesNature Communications
The 1257 CE eruption of Mount Samalas (Indonesia) caused the largest stratospheric sulfur injection of the Common Era, as recorded by Greenland and Antarctic ice cores, and led to strong climate perturbations.
Shuo Ding   +6 more
doaj   +2 more sources

Scenario-based forecast of the evolution of 75 years of unrest at Campi Flegrei caldera (Italy) [PDF]

open access: yesCommunications Earth & Environment
Campi Flegrei last erupted in 1538 and periods of increased seismicity, gas emission and ground deformation occurred in the 50’s, 70’s 80’s and are ongoing since 2005.
Luca Caricchi   +4 more
doaj   +2 more sources

Composition of Magma and Characteristics of the Hydrothermal System of Newberry Volcano, Oregon, From Magnetotellurics

open access: yesGeochemistry, Geophysics, Geosystems, 2020
We use 3‐D magnetotellurics to improve our understanding of the structure and magma composition of Newberry Volcano in Oregon, USA. Newberry is a broad shield volcano with a summit caldera and strongly bimodal magmatism.
E. Bowles‐Martinez, A. Schultz
doaj   +1 more source

The crustal magma reservoir geometry and seismic activity beneath the Wudalianchi volcano in northeast China: implications for the multilevel magmatic system [PDF]

open access: yesSolid Earth
Understanding the spatial correlation between crustal magma reservoirs and seismicity is crucial for investigating the dynamics of volcanic systems. However, due to the relatively low resolution of existing crustal tomography, especially for the middle ...
Z. Lü, Q. Kong, J. Lei, Y. Ai
doaj   +1 more source

Mount St. Helens Retrospective: Lessons Learned Since 1980 and Remaining Challenges

open access: yesFrontiers in Earth Science, 2018
Since awakening from a 123-year repose in 1980, Mount St. Helens has provided an opportunity to study changes in crustal magma storage at an active arc volcano—a process of fundamental importance to eruption forecasting and hazards mitigation.
Daniel Dzurisin
doaj   +1 more source

Magma reservoir beneath Azumayama Volcano, NE Japan, as inferred from a three-dimensional electrical resistivity model explored by means of magnetotelluric method

open access: yesEarth, Planets and Space, 2021
An electrical resistivity model beneath Azumayama Volcano, NE Japan, is explored using magnetotelluric method to probe the magma/hydrothermal fluid distribution.
Masahiro Ichiki   +6 more
doaj   +1 more source

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