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Earth’s mantle composition revealed by mantle plumes
Mantle plumes originate at depths near the core−mantle boundary (~2,800 km). As such, they provide invaluable information about the composition of...
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Molybdenum isotope composition of the upper mantle and its origin: insight from mid-ocean ridge basalt
The molybdenum (Mo) isotope system is pivotal in reconstructing marine redox changes throughout Earth’s history and has emerged as a promising tracer...
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The lithology and composition of lunar mantle modified by ilmenite bearing cumulate: A thermodynamic model
Due to their high density, the ilmenite-bearing cumulates (IBC) (with or without KREEP) formed during the late-stage lunar magma ocean solidification...
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Isomorphism Features of Post-Spinel Phases: Computer Modeling of Inclusion Composition in Lower Mantle Diamonds
AbstractMixing properties of solid solutions of the post-spinel phases with a composition of CaCr 2 O 4 –CaAl 2 O 4 , CaCr 2 O 4 –CaFe 2 O 4 , MgCr 2 O 4 –MgAl 2 O 4 , and...
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Energetics of Mantle Convection
Mantle convection and the production of the great tectonic plates described in Chap. 1 have energy flow...
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Effects of depth- and composition-dependent thermal conductivity and the compositional viscosity ratio on the long-term evolution of large thermochemical piles of primordial material in the lower mantle of the Earth: Insights from 2-D numerical modeling
Thermal conductivity plays an important role in the thermochemical evolution of Earth’s mantle. Recent mineral physics studies suggest that the...
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Hadean mantle oxidation inferred from melting of peridotite under lower-mantle conditions
The early Earth’s mantle is believed to have been highly reducing when it formed from a magma ocean equilibrating with the core. Conversely, some...
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The Global Crust and Mantle Gravity Disturbances and Their Implications on Mantle Structure and Dynamics
The gravity anomalies reflect density perturbations at different depths, which control the physical state and dynamics of the lithosphere and...
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Variations in Trace Element and Isotope Composition of Neoarchean Mafic Granulites of the Southwest Siberian Craton: a Consequence of Various Mantle Sources or Crustal Contamination
The paper presents geochemical and isotopic characteristics of Neoarchean (2.7–2.66 Ga) mafic granulites of the Sharyzhalgay uplift in the...
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He–Ne–Ar–N2–CO2 Systematics of Fernando de Noronha Mantle Xenoliths: Confirmation of Mantle Plume Origin
AbstractThe Fernando de Noronha archipelago (southwest Atlantic, 345 km from the coast of Brazil) is considered as the result of mantle plume...
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Small-Scale Mantle Plumes: Imaging and Geodynamic Aspects
Columnar, upwelling masses of hot rock in the Earth’s mantle, called mantle plumes, are spectacular features of our planet because they supply the...
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Influence of composition-dependent thermal conductivity on the long-term evolution of primordial reservoirs in Earth's lower mantle
The influence of composition-dependent thermal conductivity and heterogeneous internal heating of primordial dense material on the long-term...
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Depth of the lithospheric mantle discontinuities beneath the northwest flank of Oku Volcanic Complex, Cameroon Volcanic Line: constraints from mantle xenolith and teleseismic data
In Northwestern Cameroon, the northwest flank of Oku Volcanic Complex forms part of the continental sector of the Cameroon Volcanic Line (CVL)....
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New Data on the Rock and Mineral Composition of Kharchinsky and Zarechny Volcanoes, Central Kamchatka Depression: Heterogeneity of the Mantle Source and Peculiarities of Magma Evolution in the Crust
AbstractKharchinsky and Zarechny volcanoes and the Kharchinsky Lake zone of monogenic cones are unique eruptive centers of magnesian lavas located...
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Composition and Isotope Parameters of Metabasalts and Gabbroids of the Onot Granite–Greenstone Block, Southwestern Siberian Platform, as Indicators of Lithospheric Mantle Evolution from the Archean to Paleoproterozoic
AbstractThe paper summarizes major and trace-element compositions and Sm–Nd isotope data on metabasites (amphibolites) and gabbroids of the Onot...
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Revisiting geochemical perspectives on degassing of the subcontinental lithospheric mantle
In general, mantle-derived volatiles are mainly released into the atmosphere through volcanoes in mid-ocean ridges and subduction zones. However,...
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Deep Crustal and Upper Mantle Structures in North Africa: A Review
This chapter provides insight and understanding into the upper mantle and lower crust of North Africa. Much study, throughout the last few decades,...
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Deformation of the Subcontinental Lithospheric Mantle in NE China: Constraints from Rheological and Fabric Study of Mantle Peridotite Xenoliths from Jiaohe, Jilin Province
Mantle peridotite xenoliths in Jiaohe City, located near the northern part of the Tan-Lu fault, are key evidence for constraining the nature and...
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Phase Transitions in Mantle Rocks
Phase transitions of silicates and oxides relevant to the Earth’s mantle have been discussed in previous chapters. In this chapter, we focus on phase...
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Composition, Structure, and Thermal Regime of the Lithospheric Mantle in the Area of the Highly Diamondiferous V. Grib Kimberlite Pipe, Arkhangelsk Diamondiferous Province: Data on the Chemical Composition of Garnet and Chrome-Diopside Xenocrysts
AbstractThe contents of the main elements (including Ni) are presented for 1100 garnet and 831 clinopyroxene grains extracted from kimberlite of a...
