Results 51 to 60 of about 18,299,024 (255)

The feeder system of the Toba supervolcano from the slab to the shallow reservoir

open access: yesNature Communications, 2016
The Toba Caldera is the site of the largest Pleistocene eruption at 74,000 years ago, yet the magmatic plumbing system remains poorly understood. Here, Koulakov et al.
Ivan Koulakov   +7 more
doaj   +1 more source

Using Apatite to Track Volatile Evolution in the Shallow Magma Chamber below the Yonaguni Knoll IV Hydrothermal Field in the Southwestern Okinawa Trough

open access: yesJournal of Marine Science and Engineering, 2023
The Yonaguni Knoll IV is an active seafloor hydrothermal system associated with submarine silicic volcanism located in the “cross back-arc volcanic trail” (CBVT) in the southwestern Okinawa Trough.
Zuxing Chen   +5 more
doaj   +1 more source

Magmatic-Hydrothermal Origin of Mercury in Carlin-style and Epithermal Gold Deposits in China: Evidence from Mercury Stable Isotopes

open access: yes, 2019
Carlin-style (sediment-hosted, “invisible” gold) and epithermal gold deposits are commonly enriched in mercury (Hg), but the source of this metal is not well-known.
Chenghai Zhao (506698)   +10 more
core   +1 more source

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

open access: yesDeep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu   +8 more
wiley   +1 more source

Magma storage in a strike-slip caldera

open access: yesNature Communications, 2016
The Ilopango caldera, El Salvador has had a number of large explosive eruptions, but its magmatic plumbing system is unclear. Here, Saxby et al. image a strike-slip faulted low-density structure under the caldera and interpret it as a gas-charged ...
J. Saxby   +3 more
doaj   +1 more source

Volatile elements in magmatic systems

open access: yesEos, Transactions American Geophysical Union, 1992
At four sessions on volatile elements in magmatic systems, held at the AGU 1992 Spring Meeting in Montreal, a diverse group of researchers discussed the various roles of volatiles in igneous systems, from the solution of volatiles into silicate crystals and melts to the quantitative modeling of volatile exsolution resulting in volcanic eruptions or ...
Don R. Baker, John Stix
openaire   +1 more source

Structural evolution of a crustal-scale seismogenic fault in a magmatic arc: The Bolfin Fault Zone (Atacama Fault System)

open access: yes, 2021
Attitude and kinematics of the different structural elements (magmatic foliations, dykes, joints, faults and ductile shear zones) from the Bolfin Fault Zone and the Cerro Cristales Shear Zone (Atacama Fault System ...
Masoch, Simone
core   +1 more source

Combination of CO 2 ${\text{CO}}_{2}$ storage and geothermal energy production in porous and fractured superhot geothermal systems

open access: yesDeep Underground Science and Engineering, EarlyView.
The graphical abstract depicts the workflow for porous‐ and fractured‐media simulations, where stochastically generated discrete natural fractures are required for the fracture‐media simulation. Abstract CO 2 ${\text{CO}}_{2}$ leakage is one of the main risks and barriers to geologic carbon storage. However, under the high‐temperature and high‐pressure
Christoph Scherounigg   +3 more
wiley   +1 more source

Major engineering breakthrough of Well XA‐1, the deepest ten‐thousand‐meter well in a global sedimentary basin

open access: yesDeep Underground Science and Engineering, EarlyView.
Well XA‐1, completed at a true vertical depth of 11 156 m in the Shawan Sag of the Junggar Basin, is the deepest predominantly near‐vertical well drilled in a sedimentary basin. The figure shows the basin's tectonic framework and well location (a), a structural cross‐section spanning the Shawan Sag and adjacent uplifts (b), and the stratigraphic column
Fangkai Liu   +3 more
wiley   +1 more source

Insights from Fumarole Gas Geochemistry on the Recent Volcanic Unrest of Pico do Fogo, Cape Verde

open access: yesFrontiers in Earth Science, 2021
We report the results of the geochemical monitoring of the fumarolic discharges at the Pico do Fogo volcano in Cape Verde from 2007 to 2016. During this period Pico do Fogo experienced a volcanic eruption (November 23, 2014) that lasted 77 days, from a ...
Gladys V. Melián   +25 more
doaj   +1 more source

Home - About - Disclaimer - Privacy