Results 21 to 30 of about 392,695 (199)

Optimization of Reservoir Waterflooding [PDF]

open access: yes, 2014
Waterflooding is a common type of oil recovery techniques where water is pumped into the reservoir for increased productivity. Reservoir states change with time, as such, different injection and production settings will be required to lead the process
Grema, Alhaji Shehu
core   +7 more sources

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

Coupled subdaily and multiweek cycles during the lava dome erupt of Soufriere Hills Volcano, Montserrat [PDF]

open access: yes, 2013
Observations of volcanoes extruding andesitic lava to produce lava domes often reveal cyclic behaviour. At Soufriere Hills Volcano, Montserrat, cycles with sub-daily and multi-week periods have been recognised on many occasions.
Costa, A.   +12 more
core   +1 more source

The incrementally zoned Miocene Ayagaures ignimbrite (Gran Canaria, Canary Islands) [PDF]

open access: yes, 2010
The 20–25 m thick trachyphonolitic Ayagaures ignimbrite cooling unit [(AY); 11.8 Ma] exposed over 250 km2 (onshore volume ca. 4.5 km3 DRE) is the uppermost and most voluminous cooling unit of the Middle Fataga Formation (MFF), part of the Fataga Group ...
Hans-Ulrich Schmincke   +5 more
core   +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

Silicic magma reservoirs in the Earth’s crust [PDF]

open access: yesAmerican Mineralogist, 2016
![][1] Magma reservoirs play a key role in controlling numerous processes in planetary evolution, including igneous differentiation and degassing, crustal construction, and volcanism. For decades, scientists have tried to understand what happens in these reservoirs, using an array of techniques such as field mapping/petrology/geochemistry ...
Olivier Bachmann, Christian Huber
openaire   +1 more source

Magma Pathways and Their Interactions Inferred from InSAR and Stress Modeling at Nyamulagira Volcano, D.R. Congo

open access: yesRemote Sensing, 2015
A summit and upper flank eruption occurred at Nyamulagira volcano, Democratic Republic of Congo, from 2–27 January 2010. Eruptions at Nyamulagira during 1996–2010 occurred from eruptive fissures on the upper flanks or within the summit caldera and were ...
Christelle Wauthier   +4 more
doaj   +1 more source

Vault-housed extensometers recorded a rapid initial pulse before precursory magma reservoir inflation related to the 2011 eruption of Shinmoe-dake, Japan

open access: yesEarth, Planets and Space, 2020
Previous studies of the major eruption at Shinmoe-dake volcano, Japan, in January 2011 suggested that gradual injection of magma from a deep source into a shallow reservoir began in December 2009 and led to the major eruption.
Ken’ichi Yamazaki   +2 more
doaj   +1 more source

Determining the current size and state of subvolcanic magma reservoirs [PDF]

open access: yesNature Communications, 2020
AbstractDetermining the state of magma reservoirs is essential to mitigate volcanic hazards. However, geophysical methods lack the spatial resolution to quantify the volume of eruptible magma present in the system, and the study of the eruptive history of a volcano does not constrain the current state of the magma reservoir.
Gregor Weber   +3 more
openaire   +5 more sources

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