Results 51 to 60 of about 128,965 (257)

Magma transfer at Campi Flegrei caldera (Italy) before the 1538 AD eruption

open access: yesScientific Reports, 2016
Calderas are collapse structures related to the emptying of magmatic reservoirs, often associated with large eruptions from long-lived magmatic systems.
M. D. Di Vito   +11 more
semanticscholar   +1 more source

Seismological Evidence of Multiple Crustal Magma Reservoirs Beneath Mt. Wrangell in Southcentral Alaska

open access: yesGeophysical Research Letters
Recent studies have challenged the classical view of magma chambers as ephemeral, melt‐rich bodies confined to shallow depths beneath arc volcanoes at subduction zones.
Qili Andy Dai   +4 more
doaj   +1 more source

Quantifying Microstructural Evolution in Moving Magma

open access: yesFrontiers in Earth Science, 2020
Many of the grand challenges in volcanic and magmatic research are focused on understanding the dynamics of highly heterogeneous systems and the critical conditions that enable magmas to move or eruptions to initiate.
Katherine J. Dobson   +42 more
doaj   +1 more source

The magma thermal field and the shallow-level gas accumulation of tight gas reservoirs in the middle-eastern parts of the Qinshui Basin

open access: yesEarth Sciences Research Journal, 2019
In this study, the metal-non-metal mineral gas-water hydrothermal concept is used to analyze the movement channels of magmatic heating water. Further, the concept of fractures-faults-cracks microfissures hierarchical configuration of the movement ...
Ke Sun   +4 more
doaj   +1 more source

Ductility and Compressibility Accommodate High Magma Flux Beneath a Silicic Continental Rift Caldera: Insights From Corbetti Caldera (Ethiopia)

open access: yesGeochemistry, Geophysics, Geosystems, 2020
Large silicic magma reservoirs preferentially form in the upper crust of extensional continental environments. However, our quantitative understanding of the link between mantle magmatism, silicic reservoirs, and surface deformation during rifting is ...
J. Gottsmann   +4 more
doaj   +1 more source

Lateral Magma Flow in Mafic Sill‐complexes

open access: yes, 2016
The structure of upper crustal magma plumbing systems controls the distribution of volcanism and influences tectonic processes. However, delineating the structure and volume of plumbing systems is difficult because (1) active intrusion networks cannot be
C. Magee   +10 more
semanticscholar   +1 more source

Computadores aplicados a la clasificación química de las rocas ígneas. Métodos C.l.P.W. y NIGGLI

open access: yesBoletín Geológico, 1972
Existen diversos métodos para clasificar las rocas de acuerdo a su análisis químico. Uno de los más empleados ha sido el de C.I.P. W. que da una composición teórica calculada o normativa. Al contrario de la composición actual o modal de la misma. Esta
Humberto González lregui
doaj   +1 more source

Towards a Generalized Cayley–Dickson Construction through Involutive Dimagmas

open access: yesMathematics
A generalized construction procedure for algebraic number systems is hereby presented. This procedure offers an efficient representation and computation method for complex numbers, quaternions, and other algebraic structures.
Nelson Martins-Ferreira   +1 more
doaj   +1 more source

Copper Isotope Studies of a Deep Ore Body in the Xinliaodong Copper-Polymetallic Deposit, Eastern Guangdong Province

open access: yesYankuang ceshi, 2017
The Xinliaodong copper-polymetallic deposit of Eastern Guangdong Province is one of newly discovered deposits. The ore district belongs to tin, tungsten, and copper ore cluster in the southeast coast, which have a very good ore-forming geological ...
FAN Fei-peng   +8 more
doaj   +1 more source

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