Fluid migration in the mantle wedge: Influence of mineral grain size and mantle compaction
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Geophysical Research"
DOI: 10.1002/2017jb014046
Abstract: Mineral grain size in the mantle affects fluid migration by controlling mantle permeability; the smaller the grain size, the less permeable the mantle is. Mantle shear viscosity also affects fluid migration by controlling compaction pressure;… read more here.
Keywords: mantle wedge; fluid migration; mantle; grain size ... See more keywords
Jolts in the Jade factory: A route for subduction fluids and their implications for mantle wedge seismicity
Sign Up to like & getrecommendations! Published in 2021 at "Earth-Science Reviews"
DOI: 10.1016/j.earscirev.2021.103720
Abstract: Abstract An increasing number of seismological studies report transient seismicity clusters in the mantle wedge several kilometers above the subduction interface. Their physical significance with respect to subduction zone seismo-tectonics remains poorly understood. Jadeitites are… read more here.
Keywords: subduction interface; seismicity; deformation; mantle wedge ... See more keywords
The importance of mantle wedge heterogeneity to subduction zone magmatism and the origin of EM1
Sign Up to like & getrecommendations! Published in 2017 at "Earth and Planetary Science Letters"
DOI: 10.1016/j.epsl.2017.04.051
Abstract: The composition of the convecting asthenospheric mantle that feeds the mantle wedge can be investigated via rear-arc lavas that have minimal slab influence. This "ambient mantle wedge" composition (the composition of the wedge prior to… read more here.
Keywords: wedge heterogeneity; mantle; wedge; 143 144 ... See more keywords
Mantle wedge temperatures and their potential relation to volcanic arc location
Sign Up to like & getrecommendations! Published in 2018 at "Earth and Planetary Science Letters"
DOI: 10.1016/j.epsl.2018.08.011
Abstract: Abstract The mechanisms underpinning the formation of a focused volcanic arc above subduction zones are debated. Suggestions include controls by: (i) where the subducting plate releases water, lowering the solidus in the overlying mantle wedge;… read more here.
Keywords: wedge; dip; plate; volcanic arc ... See more keywords
Nitrogen and noble gas isotopic compositions of mantle xenoliths from Far Eastern Russia: Implications for nitrogen isotopic characteristics of mantle wedge fluid
Sign Up to like & getrecommendations! Published in 2020 at "Earth and Planetary Science Letters"
DOI: 10.1016/j.epsl.2020.116109
Abstract: Abstract To investigate nitrogen circulation via subduction, we measured isotopic compositions of nitrogen and noble gases of mantle-derived xenoliths from Far Eastern Russia, where the tectonic setting is a plate convergence margin in the Mesozoic… read more here.
Keywords: isotopic compositions; nitrogen noble; xenoliths far; far eastern ... See more keywords
Generation of andesite through partial melting of basaltic metasomatites in the mantle wedge: Insight from quantitative study of Andean andesites
Sign Up to like & getrecommendations! Published in 2021 at "Geoscience frontiers"
DOI: 10.1016/j.gsf.2020.12.005
Abstract: Abstract Continental crust in average exhibits a similar composition in both major and trace elements to andesites along active continental margins. For this reason, andesitic magmatism above oceanic subduction zones is considered to have played… read more here.
Keywords: melting basaltic; partial melting; melting; basaltic metasomatites ... See more keywords
Experimental constraints on metasomatism of mantle wedge peridotites by hybridized adakitic melts
Sign Up to like & getrecommendations! Published in 2018 at "Lithos"
DOI: 10.1016/j.lithos.2018.03.006
Abstract: Abstract In this study, a series of high-pressure (1.5 GPa) and high-temperature (1000–1300 °C) experiments were performed to investigate the petrological imprints of adakitic metasomatism on mantle wedge peridotites. Reaction couples were prepared using a powdered adakite… read more here.
Keywords: adakitic melts; metasomatism; hybridized adakitic; metasomatism mantle ... See more keywords
Is there a big mantle wedge under eastern Tibet?
Sign Up to like & getrecommendations! Published in 2019 at "Physics of the Earth and Planetary Interiors"
DOI: 10.1016/j.pepi.2019.04.005
Abstract: Abstract The big mantle wedge (BMW) model was originally proposed to explain the origin of the intraplate Changbaishan volcano in NE China where the subducting Pacific slab becomes stagnant in the lower part of the… read more here.
Keywords: mantle; eastern tibet; mtz; big mantle ... See more keywords
Seismic velocity and anisotropy tomography of southern Sumatra
Sign Up to like & getrecommendations! Published in 2021 at "Physics of the Earth and Planetary Interiors"
DOI: 10.1016/j.pepi.2021.106722
Abstract: Abstract In this study new isotropic P- and S-wave velocity models as well as the P-wave azimuthally anisotropic model of the crust and uppermost mantle beneath southern Sumatra are derived from regional earthquake data by… read more here.
Keywords: velocity; tomography; seismic velocity; mantle wedge ... See more keywords
On the Stability of Talc in Subduction Zones: A Possible Control on the Maximum Depth of Decoupling Between the Subducting Plate and Mantle Wedge
Sign Up to like & getrecommendations! Published in 2021 at "Geophysical Research Letters"
DOI: 10.1029/2021gl094889
Abstract: Geophysical observations including surface heat flow data indicate the subducting slab becomes fully coupled to the overlying mantle wedge at ∼70–80 km depth. This maximum depth of decoupling (MDD) separates cool, stagnant forearc mantle from… read more here.
Keywords: depth; subduction zones; mantle wedge; maximum depth ... See more keywords
Transient rheology of the Sumatran mantle wedge revealed by a decade of great earthquakes
Sign Up to like & getrecommendations! Published in 2018 at "Nature Communications"
DOI: 10.1038/s41467-018-03298-6
Abstract: Understanding the rheological properties of the upper mantle is essential to develop a consistent model of mantle dynamics and plate tectonics. However, the spatial distribution and temporal evolution of these properties remain unclear. Here, we… read more here.
Keywords: evolution; rheology; model; decade ... See more keywords