Results 31 to 40 of about 1,408 (194)

Cenozoic Uplift and Volcanism of Hangai Dome, Central Mongolia Triggered by Lower Mantle Upwellings

Geophysical Research Letters, 2023
The mechanisms of surface uplift of Hangai Dome (>2 km) and formation of Cenozoic intraplate volcanism in central Mongolia remain vigorously debated.
Yingkai Wu, Xuewei Bao
doaj   +1 more source

Correlated Changes Between Volcanic Structures and Magma Composition in the Faial Volcanic System, Azores

Frontiers in Earth Science, 2018
The interaction between magmatic and tectonic processes in ocean intraplate volcanism yields insights into the ascent and transport of magmas. Many oceanic intraplate studies lack a temporal component and do not consider changes in tectonic regime and/or
René H. W. Romer, Christoph Beier, Karsten M. Haase, Christian Hübscher   +3 more
doaj   +1 more source

Plume-induced post-spreading intraplate volcanism within and around the South China Sea

, 2023
This dataset contains the manually picked surface wave dispersion data and the final inverted 3-D Vs model data for our research paper "Plume-induced post-spreading intraplate volcanism within and around the South China Sea"
Zhen Guo, Ling Chen, Qi-Fu Chen, Xingli Fan, Chuntao Liang, Ting Yang   +5 more
core   +1 more source

Tectonic significance of changes in post-subduction Pliocene-Quaternary magmatism in the south east part of the Carpathian-Pannonian Region [PDF]

, 2010
The south-eastern part of the Carpathian–Pannonian region records the cessation of convergence between the European platform/Moesia and the Tisza–Dacia microplate.
Downes, H., Szacáks, A., Maţenco, L., Szakács, A., Mason, P.R.D., Seghedi, I., Matenco, L.C., Downes, Hilary, Pécskay, Z.   +8 more
core   +1 more source

A subduction and mantle plume origin for Samoan volcanism

Scientific Reports, 2018
The origin of Samoan volcanism in the southwest Pacific remains enigmatic. Whether mantle melting is solely caused by a mantle plume is questionable because some volcanism, here referred to as non-hotspot volcanism, defies the plume model and its linear ...
Vincent Strak, Wouter P. Schellart
doaj   +1 more source

Mantle and Crustal Xenoliths in a Tephriphonolite From La Palma (Canary Islands): Implications for Phonolite Formation at Oceanic Island Volcanoes

Frontiers in Earth Science, 2022
The occurrence of mantle-derived peridotite xenoliths in phonolitic melts is a rare phenomenon, and is commonly ascribed to a mantle origin of the phonolite.
Andreas Klügel, Elmar Albers, Thor H. Hansteen   +2 more
doaj   +1 more source

Extreme intensity of fluid-rock interaction during extensive intraplate volcanism [PDF]

, 2019
The compositional variability in large igneous provinces has mainly been attributed to changes in the melting regime and shallow crus- tal processes and commonly ranges from depleted tholeiitic basaltic to enriched alkaline lavas. Large igneous provinces
Stefan H. Krumm, Felix S. Genske, Christian Hübscher, Wolfgang Bach, Krumm, Stefan H., Beier, Christoph, Busch, Alexander V, Krumm, Stefan H, Bach, Wolfgang, Genske, Felix, Busch, Alexander V., Genske, Felix S., Christoph Beier, Hübscher, Christian, Alexander V. Busch   +14 more
core   +1 more source

Papanin Ridge and Ojin Rise Seamounts (Northwest Pacific): Dual Hotspot Tracks Formed by the Shatsky Plume

Geochemistry, Geophysics, Geosystems, 2021
Although previous findings support an origin of the Shatsky Rise igneous plateau (Northwest Pacific) through interaction of a mantle plume with a mid‐ocean ridge triple junction, the evidence for the involvement of a mantle plume is equivocal.
Antje Dürkefälden, Jörg Geldmacher, Maxim Portnyagin, Dieter Garbe‐Schönberg, Reinhard Werner, Dietmar Müller, Folkmar Hauff, Kaj Hoernle   +7 more
doaj   +1 more source

The distribution of intraplate volcanism in the Pacific Ocean basin: a spectral approach [PDF]

Geophysical Journal International, 1982
Summary. Although the major linear island chains in the Pacific Ocean basin have been extensively studied, relatively little attention has been given to the origin of the numerous seamounts and oceanic islands that are concentrated in the western Pacific.
Ribe, N, Watts, A
openaire   +2 more sources

From primitive to mature intraplate volcanism: geochemical evolution of the Cenozoic harrats in Western Saudi Arabia

, 2022
The extensive and well-preserved lava fields, “harrats” in Arabic, of western Saudi Arabia stretch for 3000 km south to north and cover an area of more than 120.000 km2 in total. The alkalic volcanism initiated at ca.
Hansteen, Thor, Al Malallah, Murtadha, Follmann, Jörg, Jägerup, Beatrice, Garcia Paredes, Evelyn, Zivadinovic, Ivana, Van der Zwan, Froukje M.   +6 more
core   +1 more source