Journal ArticleDOI
Rare-earth abundances in chondritic meteorites
TLDR
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.About:
This article is published in Geochimica et Cosmochimica Acta.The article was published on 1978-08-01. It has received 1346 citations till now. The article focuses on the topics: Chondrule & Chondrite.read more
Citations
More filters
Journal ArticleDOI
Three natural zircon standards for u‐th‐pb, lu‐hf, trace element and ree analyses
M. Wiedenbeck,P. Allé,Fernando Corfu,William L. Griffin,M. Meier,F. Oberli,A. von Quadt,J.C. Roddick,W. Spiegel +8 more
TL;DR: In this paper, the results of a study to develop natural zircon geochemical standards for calibrating the U-(Th)-Pb geochronometer and Hf isotopic analyses are reported.
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
Sm-Nd isotopic evolution of chondrites
TL;DR: In this paper, it was shown that none of the analyzed meteorite samples deviated more than 0.5 e-units from a 4.6-AE reference isochron and defined an initial 4.5-AE value for CHUR using the Juvinas data of Lugmair.
Journal ArticleDOI
Solar-system abundances of the elements
Edward Anders,Mitsuru Ebihara +1 more
TL;DR: In this paper, the Ogueil Cl meteorite and all previous Cl chondrite analyses were employed to develop a new solar system abundance table, including the standard deviation and number of analyses for each element.
References
More filters
Journal ArticleDOI
Rare-earth elements in matrix, inclusions, and chondrules of the Allende meteorite
Tsuyoshi Tanaka,Akimasa Masuda +1 more
TL;DR: In this paper, rare earth elements in a whole-rock sample and in major components of the Allende meteorite were investigated; for a few samples, abundances of Ba, Sr, Ca, and Al were also determined.
Book ChapterDOI
Genesis of the Calcium-Rich Achondrites in Light of Rare-Earth and Barium Concentrations
TL;DR: In this article, rare earth and barium concentrations have been determined by mass-spectrometric isotope-dilution for a chondrite composite, nine calcium-rich achondrites, two plagioclase separates, and two pyroxene separates.
Journal ArticleDOI
The isotopic and elemental abundance of ytterbium in meteorites and terrestrial samples
TL;DR: The isotopic composition of ytterbium in meteoritic and terrestrial materials was measured using a solid source mass spectrometer as discussed by the authors, and the relative isotope abundances for reagent Yb were calculated within experimental errors.
Journal ArticleDOI
Minor and trace elements in some meteoritic minerals
Ralph O. Allen,Brian Mason +1 more
TL;DR: In this paper, the mineral phases including olivine, orthopyroxene, clinipyroxenes, troilite, nickel-iron, plagioclase, chromite, and the phosphates were separated from several meteorites.