Journal ArticleDOI
Slab-derived osmium and isotopic disequilibrium in garnet pyroxenites from a Paleozoic convergent plate margin (lower Austria)
TLDR
In this article, an isotopic and chemical profile across a modally layered pyroxenite indicates substantial Os isotopic disequilibrium on the centimeter scale, while Nd and Sb isotopes are equilibrated or nearly equilibria.About:
This article is published in Chemical Geology.The article was published on 2004-08-16. It has received 38 citations till now. The article focuses on the topics: Peridotite & Incompatible element.read more
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Book ChapterDOI
Orogenic, ophiolitic and abyssal peridotites
TL;DR: Orogenic, ophiolitic, and abyssal peridotites represent subcontinental, suboceanic, and subarc mantle rocks that were exhumed to the surface in various tectonic settings as mentioned in this paper.
Journal ArticleDOI
The Origin and Evolution of the Kaapvaal Cratonic Lithospheric Mantle
TL;DR: A detailed petrological and geochemical study of low-temperature peridotite xenoliths from Kimberley and northern Lesotho is presented to constrain the processes that led to the magmaphile element depletion of the Kaapvaal cratonic lithospheric mantle and its subsequent re-enrichment in Si and incompatible trace elements as discussed by the authors.
Journal ArticleDOI
Temporal Evolution of the Lithospheric Mantle beneath the Eastern North China Craton
Zhu-Yin Chu,Fu-Yuan Wu,Richard J. Walker,Roberta L. Rudnick,Lynnette Pitcher,Igor S. Puchtel,Yue-Heng Yang,Simon A. Wilde +7 more
TL;DR: In this paper, mantle xenoliths from the Paleozoic Mengyin kimberlites, along with xenolith samples from the Cenozoic Penglai and Shanwang basalts in Shandong Province, are investigated via traditional petrographic and elemental, Sr^Nd^Hf^Os isotopic and platinum-group element (PGE) analyses.
Journal ArticleDOI
Origin of Pyroxenite–Peridotite Veined Mantle by Refertilization Reactions: Evidence from the Ronda Peridotite (Southern Spain)
TL;DR: In this paper, a major and trace element and numerical modeling study of a layered outcrop of group C pyroxenite near the locality of Tolox aimed at constraining the origin of these pyroxensites after host peridotites by pervasive pyroxene-producing, refertilization melt^ rock reactions is presented.
Journal ArticleDOI
The debate over core–mantle interaction
TL;DR: In this paper, the authors show that plume-derived materials have coupled enrichments in 186Os/188Os and 187Os/ 188Os relative to upper mantle materials, consistent with the liquid outer core that might result from elevated Pt/Os and Re/Os generated via progressive crystallization of a solid inner core over Earth history.
References
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Book
The mathematics of diffusion
TL;DR: Though it incorporates much new material, this new edition preserves the general character of the book in providing a collection of solutions of the equations of diffusion and describing how these solutions may be obtained.
Journal ArticleDOI
The composition of the Earth
William F. McDonough,Shen-Su Sun +1 more
TL;DR: In this paper, the authors compared the relative abundances of the refractory elements in carbonaceous, ordinary, and enstatite chondritic meteorites and found that the most consistent composition of the Earth's core is derived from the seismic profile and its interpretation, compared with primitive meteorites, and chemical and petrological models of peridotite-basalt melting relationships.
Journal ArticleDOI
THE Re-Os ISOTOPE SYSTEM IN COSMOCHEMISTRY AND HIGH-TEMPERATURE GEOCHEMISTRY
TL;DR: The Re-Os isotope sytem, based on the long-lived β− transition of 187Re to 187Os, has matured to wide use in cosmochemistry and high-temperature geochemistry as discussed by the authors.
Journal ArticleDOI
Implications of a two-component marble-cake mantle
TL;DR: In this article, it is suggested that the upper mantle contains elongated strips of subducted oceanic lithosphere, which are stretched and thinned by the normal and shear strains in the convecting mantle, and are destroyed by being reprocessed at ocean ridges or, on the centimetre scale, by dissolution processes; the result is a marble-cake mantle.