Results 1 to 10 of about 1,684 (203)

Gold mineralization and metallogenesis associated with mantle dynamics in East China

open access: yesFrontiers in Earth Science, 2022
East China can be divided into two parts: the North China Block (or North China Craton) (NCC) and the South China Block (SCB). The mechanism for the destruction of the NCC and the large-scale magmatic activity in the SCB during the Mesozoic is a major ...
Chuansong He
doaj   +1 more source

Plume–ridge interactions: ridgeward versus plate-drag plume flow [PDF]

open access: yesSolid Earth, 2023
The analysis of mid-ocean ridges and hotspots that are sourced by deep-rooted mantle plumes allows us to get a glimpse of mantle structure and dynamics.
F. Pang   +7 more
doaj   +1 more source

Insights Into the Nature of Plume‐Ridge Interaction and Outflux of H2O From the Galápagos Spreading Center

open access: yesGeochemistry, Geophysics, Geosystems, 2021
The flow of high‐temperature and compositionally enriched material between mantle plumes and nearby spreading centers influences up to 30% of the global mid‐ocean ridge system and represents a significant, but currently unconstrained, flux of volatiles ...
Matthew L. M. Gleeson, Sally A. Gibson
doaj   +1 more source

Phase Diagrams of Carbonate Materials at High Pressures, with Implications for Melting and Carbon Cycling in the Deep Earth

open access: yesGeophysical Monograph Series, Page 137-165., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Konstantin Litasov   +3 more
wiley  

+4 more sources

Remnant of the late Permian superplume that generated the Siberian Traps inferred from geomagnetic data

open access: yesNature Communications, 2023
Discovering ancient mantle plumes is challenging. By combining electrical conductivity with mineral physics modelling, this work finds a remnant of an ancient plume trapped in the mantle transition zone and sheds new light on mantle plume physics.
Shiwen Li   +5 more
doaj   +1 more source

Robust Seismic Images of the Hawaiian Plume

open access: yesGeophysical Research Letters, 2022
To image the Hawaiian plume and the plume‐lithosphere interaction, we determine a robust 3‐D shear‐wave velocity (Vs) model of the upper mantle and the mantle transition zone (MTZ) beneath Hawaii by jointly inverting teleseismic S‐wave arrival times ...
Chuanwei Ye   +3 more
doaj   +1 more source

Plume‐Induced Rifting of Thickened Crust: 2D Numerical Model and Implications for N–S Rifts in Southern Tibet

open access: yesGeophysical Research Letters, 2022
N–S rifting is one of the most typical tectonics in southern Tibet, but its formation mechanism remains controversial. Geophysical observations indicated spatial correlations between rifts and lithospheric mantle anomalies, presumably caused by ...
Yajin Pang   +3 more
doaj   +1 more source

Mantle plumes [PDF]

open access: yesProceedings 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

Tracing the Iceland plume and North East Atlantic breakup in the lithosphere

open access: yesCommunications Earth & Environment, 2023
Plumes are domains where hotter material rises through Earth´s mantle, heating also the moving lithospheric plates that may experience thinning or even continental breakup.
María Laura Gómez Dacal   +5 more
doaj   +1 more source

Evidence for compositionally distinct upper mantle plumelets since the early history of the Tristan-Gough hotspot

open access: yesNature 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

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