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Dynamical geochemistry of the mantle [PDF]
Solid Earth, 2011 The reconciliation of mantle chemistry with the structure of the mantle inferred from geophysics and dynamical modelling has been a long-standing problem. This paper reviews three main aspects. First, extensions and refinements of dynamical modelling and
G. F. Davies
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Whole-mantle convection with tectonic plates preserves long-term global patterns of upper mantle geochemistry. [PDF]
Sci Rep, 2017 AbstractThe evolution of the planetary interior during plate tectonics is controlled by slow convection within the mantle. Global-scale geochemical differences across the upper mantle are known, but how they are preserved during convection has not been adequately explained.
Barry TL +7 more
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Carbonated mantle peridotites represent a hidden sink for subducted CO2 [PDF]
Nature CommunicationsSubduction of carbon rich sediments and crust at convergent plate boundaries exerts a crucial control on Earth’s mantle chemistry and surface habitability.
Elliot J. Carter +6 more
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Carbonate- and silicate-metasomatized mantle beneath Himalayan-Tibetan orogenic belt [PDF]
Communications Earth & EnvironmentThe extreme geochemical enrichment of post-collisional potassium-rich lava in the Alpine-Himalayan orogenic belt has led researchers to hypothesize that enrichment is inherited from a metasomatized mantle source potentially incorporating crustal ...
Weikai Li +4 more
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Emissions of mantle helium and abiotic methane at newly discovered black smokers along the Central Indian ridge (12°S–16°S) [PDF]
Scientific ReportsVolatiles emitted from black smokers provide crucial insights into mantle and hydrothermal processes. This study investigated the Cheoeum (CVF) and MIRAE-2 (M2VF) vent fields in the 12–16°S region of the Central Indian Ridge (CIR) using RV ISABU and ROV ...
Heejun Kim +8 more
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Insights Into Mantle Plume Geochemistry From Machine Learning
Geochemistry, Geophysics, GeosystemsOceanic island basalts are the products of mantle plume melting and their chemistry provides insights into the Earth's deep interior. We report a statistical and machine learning study of 8 radiogenic isotopes and 19 incompatible trace element ratios in ...
William M. White +2 more
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IODP Expedition 330: Drilling the Louisville Seamount Trail in the SW Pacific [PDF]
Scientific Drilling, 2013 Deep-Earth convection can be understood by studying hotspot volcanoes that form where mantle plumes rise up and intersect the lithosphere, the Earth's rigid outer layer.
A. A. P. Koppers +3 more
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Solid Earth Sciences, 2021 We report systematical zircon U–Pb datings, Hf isotopic data, major and trace element date on the Zhangshiying (ZSY) and the Taishanmiao (TSM) two plutons at the southern margin of the North China Craton (NCC), in order to investigate their petrogenesis ...
Zhuang Zhao +3 more
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Geochemistry, Geophysics, Geosystems, 2021 The Earth's upper mantle is isotopically heterogeneous over large lengthscales, but the lower limit of these heterogeneities is not well quantified. Grain scale trace elemental variability has been observed in mantle peridotites, which suggests that ...
Benjamin L. Byerly +2 more
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Geochemistry, Geophysics, Geosystems, 2021 Melt inclusions with large, positive Sr anomalies have been described in multiple tectonic settings, and the origins of this unusual geochemical feature are debated.
O. E. Anderson +7 more
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