Results 11 to 20 of about 27,251 (208)
A Mantle Plume Beneath South China Revealed by Electrical Conductivity Obtained from Three-Dimensional Inversion of Geomagnetic Data [PDF]
Sensors, 2023 A three-dimensional electrical conductivity model of the mantle beneath South China is presented using the geomagnetic depth sounding method in this paper.
Shiwen Li, Yunhe Liu, Jianping Li
doaj +2 more sources
A subduction and mantle plume origin for Samoan volcanism [PDF]
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 +2 more sources
Synchronous motion of the Easter mantle plume and the East Pacific Rise [PDF]
Nature CommunicationsThe Easter mantle plume has produced one of the longest hotspot tracks in the Pacific Ocean. While previous studies have focused on the eastern side extending across the Nazca Plate, we use 40Ar/39Ar isotopic and geochemical data to investigate the less ...
John M. O’Connor +6 more
doaj +2 more sources
Proceedings of the National Academy of Sciences, 2013 Volcanoes are usually found near the borders of tectonic plates that are violently either pushing or pulling at each other. Mysteriously, however, volcanoes sometimes erupt in the middle of these plates instead. The culprits behind these outbursts might be giant pillars of hot molten rock known as mantle plumes, jets of magma rising up from near the ...
openaire +2 more sources
Nature Communications, 2023 Recent studies indicate that mantle plumes, which transfer material and heat from the earth’s interior to its surface, represent multifaceted upwellings.
Stephan Homrighausen +6 more
doaj +1 more source
Plume-Induced Subduction Initiation: Revisiting Models and Observations
Frontiers in Earth Science, 2021 Subduction initiation induced by a hot and buoyant mantle plume head is unique among proposed subduction initiation mechanisms because it does not require pre-existing weak zones or other forces for lithospheric collapse.
Marzieh Baes +6 more
doaj +1 more source
Does depleted mantle form an intrinsic part of the Iceland plume? [PDF]
, 2003 Icelandic basalt ranges in composition from voluminous tholeiite, erupted in the rift zones, to small-volume, mildly alkaline basalt erupted off-axis.
Andrew D. Saunders +37 more
core +1 more source
The deep Earth origin of the Iceland plume and its effects on regional surface uplift and subsidence [PDF]
Solid Earth, 2017 The present-day seismic structure of the mantle under the North Atlantic Ocean indicates that the Iceland hotspot represents the surface expression of a deep mantle plume, which is thought to have erupted in the North Atlantic domain during the ...
N. Barnett-Moore +3 more
doaj +1 more source
Slabs in the lower mantle and their modulation of plume formation [PDF]
, 2002 Numerical mantle convection models indicate that subducting slabs can reach the core-mantle boundary (CMB) for a wide range of assumed material properties and plate tectonic histories.
Gurnis, Michael, Han, Lijie, Tan, Eh
core +1 more source
An emerging plume head interacting with the Hawaiian plume tail
The Innovation, 2023 The Hawaiian-Emperor seamount chain has shown two subparallel geographical and geochemical volcanic trends, Loa and Kea, since ∼5 Ma, for which numerous models have been proposed that usually involve a single mantle plume sampling different compositional
Lipeng Zhang +6 more
doaj +1 more source