Results 191 to 200 of about 40,674 (250)

Ru and W isotope systematics in ocean island basalts reveals core leakage. [PDF]

Nature
Messling N, Willbold M, Kallas L, Elliott T, Fitton JG, Müller T, Geist D.   +6 more
europepmc   +1 more source

Lens effect of remnant blocks on deep mantle upwelling causing anomalous subsidence. [PDF]

Nat Commun
Liu L, Cao Z, Morgan JP, Hua YY, Liu L, Yang F, Long SM, Xu YG.   +7 more
europepmc   +1 more source

Heavy boron isotopes in intraplate basalts reveal recycled carbonate in the mantle. [PDF]

Sci Adv
Xu R, Cai Y, Lambart S, Chen C, Zhang JB, Zhou MF, Liu J, Bai Z, Wu T, Huang F, Ruan T, Liu Y.   +11 more
europepmc   +1 more source

Redox state of subducted sediments controls porphyry copper mineralization along the Tethyan belt. [PDF]

Nat Commun
Li H, Yang Z, Lu Y, Hou Z.
europepmc   +1 more source

Mantle xenoliths in southern Tibet : geochemistry and constraints for the nature of the mantle.

, 2008
Zhao, Z.D., Mo, X.X., Sun, C.S., Zhu, D.C., Niu, Y.L., Dong, G.C., Zhou, S., Dong, X., Liu, Y.S.   +8 more
openaire   +1 more source

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A process-oriented approach to mantle geochemistry

Chemical Geology, 2021
Abstract The numerous chemical and isotopic studies of oceanic basalts have shaped our perception of mantle geochemistry over the last six decades. As partial melts of Earth’s mantle, basalts are indirect tracers of mantle composition. Because the scale of isotopic heterogeneity is smaller than the scale of melt production, melts from isotopically ...
Andreas Stracke
openaire   +3 more sources

Mantle geochemistry: the message from oceanic volcanism

Nature, 1997
Basaltic volcanism 'samples' the Earth's mantle to great depths, because solid-state convection transports deep material into the (shallow) melting region. The isotopic and trace-element chemistry of these basalts shows that the mantle contains several isotopically and chemically distinct components, which reflect its global evolution.
openaire   +3 more sources

Geochemistry of mantle–core differentiation at high pressure

Nature, 1996
THE apparent excess of siderophile (iron-Ioving) elements in the Earth's mantle has been a long-standing enigma in the geochemistry of mantle–core differentiation1,2. Although current models have proved successful in explaining some aspects of this problem3–7, important questions remain.
Jie Li, Carl B. Agee
openaire   +3 more sources

Mantle plumes and geochemistry

Chemical Geology, 2007
Abstract There is considerable interest in the extent to which mantle plumes exist, how many there may be, and how best they can be recognized. It has proved unexpectedly difficult to image them consistently from seismology, and it has been suggested that they may be recognized from the geochemistry of rocks erupted at the Earth's surface.
Chris Hawkesworth, Anders Scherstén
openaire   +1 more source

Types of carbonatites: Geochemistry, genesis and mantle sources

Lithos, 2021
Abstract Three types of carbonatites have been identified based on the analysis of alkaline complexes using geological, petrological, and geochemical data. It has been suggested that for distinguishing carbonatite complexes into these three types, the following criteria should be used: a) the alkalinity type (Na- or K- richer primary magmas) and b ...
Nikolay.V. Vladykin, Franco Pirajno
openaire   +1 more source