Results 61 to 70 of about 128,965 (257)

Magmatic system of the Klyuchevskoy volcano according to seismic data and their geomechanical interpretation

Записки Горного института, 2023
3D analysis of the magma transport and accumulation mechanism in the structure and basement of the Klyuchevskoy volcano preceding 11 eruptions in 2003-2021 has been performed.
Aleksei V. Kiryukhin, Olga V. Bergal-Kuvikas, Mikhail V. Lemzikov, Nikita B. Zhuravlev   +3 more
doaj  

From a long-lived upper-crustal magma chamber to rapid porphyry copper emplacement : reading the geochemistry of zircon crystals at Bajo de la Alumbrera (NW Argentina).

, 2016
The formation of world class porphyry copper deposits reflect magmatic processes that take place in a deeper and much larger underlying magmatic system, which provides the source of porphyry magmas, as well as metal and sulphur-charged mineralising ...
Y. Buret, A. Quadt, C. Heinrich, David Selby, M. Wälle, I. Peytcheva   +5 more
semanticscholar   +1 more source

Platinum Group Element (PGE) Geochemistry as a Tool to Determine Sulfide Saturation and Magma Fertility [PDF]

, 2020
Monika Misztela, Ian Campbell
openalex   +1 more source

Rapid heterogeneous assembly of multiple magma reservoirs prior to Yellowstone supereruptions

Scientific Reports, 2015
Large-volume caldera-forming eruptions of silicic magmas are an important feature of continental volcanism. The timescales and mechanisms of assembly of the magma reservoirs that feed such eruptions as well as the durations and physical conditions of ...
J. Wotzlaw, I. Bindeman, R. Stern, F. d’Abzac, U. Schaltegger   +4 more
semanticscholar   +1 more source

Adakites without slab melting: High pressure differentiation of island arc magma, Mindanao, the Philippines

, 2006
New geochemical data for Pleistocene magmatic rocks from the Surigao peninsula, eastern Mindanao, the Philippines, demonstrate typical adakitic traits, including elevation of Sr / Y and depletion of the heavy rare earth elements.
C. Macpherson, S. Dreher, M. Thirlwall
semanticscholar   +1 more source

Segmented dike intrusion linked to multi-level magma storage during and before the 2025 eruption at Erta Ale (East Africa)

Frontiers in Earth Science
IntroductionDike intrusions can assist continental rifting and plate divergence. However, our understanding of the magma dynamics during diking and the architecture of the magma storage that feeds dikes are still limited by temporally and spatially ...
Alessandro La Rosa, Carolina Pagli, Derek Keir, Derek Keir, Atalay Ayele, Hua Wang, Eleonora Rivalta, Eleonora Rivalta, Elias Lewi   +8 more
doaj   +1 more source

Sr-Nd isotopic characteristic, U-Pb zircon geochronology, and petrogenesis of Najmabad Granodiorite batholith, Eastern Iran

Journal of Economic Geology, 2012
The study area is located south of Ghonabad in Eastern Iran. This area is situated between two major faults, Darouneh to the north and Dashtbyaz to the south. The movements of these faults cased major dislocation of this block.
Mehrab Moradi Noghondar, Mohammad Hassan Karimpour, G. Lang Farmer, Charles R. Stern   +3 more
doaj   +1 more source

Oriented inclusions in granite; further evidence for floored magma chambers [PDF]

, 1969
C. A. Chapman
openalex   +1 more source

Numerical simulations of the mingling caused by a magma intruding a resident mush

Volcanica
Currently, our ability to interpret the mechanics of magma mingling and mixing is limited by an incomplete understanding of the modes of mixing across all melt fractions and compositions.
Alexandre Carrara, Alain Burgisser, George W. Bergantz   +2 more
doaj   +1 more source

Satellite Geodesy Unveils a Decade of Summit Subsidence at Ol Doinyo Lengai Volcano, Tanzania

Geophysical Research Letters
The processing of hundreds of Synthetic Aperture Radar (SAR) images acquired by two satellite systems: Sentinel‐1 and COSMO‐SkyMed reveals a decade of ground deformation for a ∼0.5 km diameter area around the summit crater of the only active carbonatitic
Christelle Wauthier, Cristy Ho
doaj   +1 more source