Oceanic intraplate explosive eruptions fed directly from the mantle
Constraining the volatile content of magmas is critical to our understanding of eruptive
processes and their deep Earth cycling essential to planetary habitability [R. Dasgupta, MM …
processes and their deep Earth cycling essential to planetary habitability [R. Dasgupta, MM …
Two Distinct Metasomatized Mantle Sources Produced Two Groups of Alkaline SiO2-Undersaturated Rocks in the Southern Central European Volcanic Province
Abstract Upper Cretaceous–Miocene alkaline SiO2-undersaturated volcanic rocks in the
southern Central European Volcanic Province (CEVP) comprise two distinct rock series:(i) …
southern Central European Volcanic Province (CEVP) comprise two distinct rock series:(i) …
The constant oxidation state of Earth's mantle since the Hadean
Determining the evolutionary history of mantle oxygen fugacity (f o2) is crucial, as it controls
the f o2 of mantle-derived melts and regulates atmospheric composition through volcanic …
the f o2 of mantle-derived melts and regulates atmospheric composition through volcanic …
Carbon budget of Earth's deep mantle constrained by petrogenesis of silica-poor ocean island basalts
C Sun, R Dasgupta - Earth and Planetary Science Letters, 2023 - Elsevier
The convecting mantle is the Earth's largest carbon reservoir that controls the carbon outflux
from the interior to surface, but its carbon content remains largely uncertain due to limited …
from the interior to surface, but its carbon content remains largely uncertain due to limited …
Assessing the presence of volatile-bearing mineral phases in the cratonic mantle as a possible cause of mid-lithospheric discontinuities
A number of possible hypotheses have been proposed to explain the origin of mid-
lithospheric discontinuities (MLDs), typically characterized by∼ 2-6% reductions in seismic …
lithospheric discontinuities (MLDs), typically characterized by∼ 2-6% reductions in seismic …
Global patterns in cratonic mid‐lithospheric discontinuities from Sp receiver functions
The goal of this study is to constrain the origins of layering in the seismic velocity structure
within the cratonic mantle lithosphere (ie mid‐lithospheric discontinuities [MLDs]). For long …
within the cratonic mantle lithosphere (ie mid‐lithospheric discontinuities [MLDs]). For long …
Catastrophic craton destruction via wholesale lithosphere delamination
The nuclei of continents, manifested as cratons, are the most long-lived parts of Earth's
lithosphere. However, ancient cratons in some areas can be substantially destroyed through …
lithosphere. However, ancient cratons in some areas can be substantially destroyed through …
[HTML][HTML] High CO2 in the mantle source of ocean island basanites
Some of the most CO 2-rich magmas on Earth are erupted by intraplate ocean island
volcanoes. Here, we characterise olivine-hosted melt inclusions from recent (< 10 ky) …
volcanoes. Here, we characterise olivine-hosted melt inclusions from recent (< 10 ky) …
The effects of local variations in conditions on carbon storage and release in the continental mantle
Recent advances indicate that the amount of carbon released by gradual degassing from
the mantle needs to be revised upwards, whereas the carbon supplied by plumes may have …
the mantle needs to be revised upwards, whereas the carbon supplied by plumes may have …
Redox evolution of crystallizing magmas with CHOS volatiles and its implications for atmospheric oxygenation
The evolution of Earth's atmospheric O 2 levels on long timescales is modulated in part by
the composition of magmatic gases, specifically their oxidation state and speciation. Here …
the composition of magmatic gases, specifically their oxidation state and speciation. Here …