Journal ArticleDOI
Chemical composition and origin of the earth's primitive mantle
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This article is published in Geochimica et Cosmochimica Acta.The article was published on 1982-02-01. It has received 567 citations till now. The article focuses on the topics: Primitive mantle & Chondrite.read more
Citations
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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
Chemical differentiation of the Earth: the relationship between mantle, continental crust, and oceanic crust
TL;DR: In this paper, the average chemical compositions of the continental crust and the oceanic crust (represented by MORB), normalized to primitive mantle values and plotted as functions of the apparent bulk partition coefficient of each element, form surprisingly simple, complementary concentration patterns.
Journal ArticleDOI
Nb and Pb in oceanic basalts: new constraints on mantle evolution
TL;DR: In this paper, the authors proposed a new constraint on mantle composition: the differentiated part of the mantle, chemically depleted after separation of the major portion of the continental crust, was subsequently internally rehomogenized.
Journal ArticleDOI
Composition of the depleted mantle
TL;DR: In this article, a combination of approaches is required to estimate the major and trace element abundances in the depleted mantle (DM), the source for mid-ocean ridge basalts (MORBs).
Journal ArticleDOI
The role of water in the petrogenesis of Mariana trough magmas
Edward M. Stolper,Sally Newman +1 more
TL;DR: In this article, it was shown that most variations in composition among primitive basalts from the Mariana back-arc trough can be explained by melting mixtures of an NMORB-type mantle source and an H 2O-rich component, provided the degree of melting is positively and approximately linearly correlated with the proportion of the H 2 O-rich components in the mixture.
References
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Journal ArticleDOI
Approximation of terrestrial lead isotope evolution by a two-stage model
J.S. Stacey,Jan Kramers +1 more
TL;DR: In this paper, a two-stage model for terrestrial lead isotope evolution is proposed, which permits the age of the earth to be that of the meteorite system and also yields good model ages for samples of all ages.
Journal ArticleDOI
Trace element fractionation during anatexis
TL;DR: The theoretical basis of trace element fractionation presented in a paper by P. W. Gast (1968) can be developed in a more flexible algebraic form, which is described and illustrated in this article.
Journal ArticleDOI
Rare-earth abundances in chondritic meteorites
TL;DR: In this article, 15 chondrites, including eight carbonaceous chondites, were analyzed for rare earth element abundances by isotope dilution, and the persistence of anomalies in chondritic materials relatively removed from direct condensational processes implies that anomalous components were introduced at a late stage of chondrite formation.
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Lead isotopic study of young volcanic rocks from mid-ocean ridges, ocean islands and island arcs
TL;DR: Lead isotopic compositions of young volcanic rocks from different tectonic environments have distinctive characteristics their differences are evaluated within the framework of global tectonics and mantle differentiation Ocean island leads are in general more radiogenic than mid-ocean ridge basalt (morb) leads as discussed by the authors.
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