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
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Journal ArticleDOI
Emplacement age and isotope geochemistry of Sung Valley alkaline–carbonatite complex, Shillong Plateau, northeastern India: implications for primary carbonate melt and genesis of the associated silicate rocks
TL;DR: The early Cretaceous Sung Valley ultramafic-alkaline-carbonatite complex is one of several alkaline intrusions that occur in the Shillong Plateau, India.
Journal ArticleDOI
The basaltic shergottite Northwest Africa 856: Petrology and chemistry
Albert Jambon,Jean-Alix Barrat,Violaine Sautter,Ph. Gillet,Christa Göpel,M. Javoy,J. L. Joron,M. Lesourd +7 more
TL;DR: A shergottite from South Morocco is reported in this paper, which is a fine-grained basaltic rock consisting mainly of two pyroxenes converted to maskelynite (similar to23 vol%, Ab(43-57)Or(1-5)An(54-36)).
Book ChapterDOI
1.03 – Solar System Abundances of the Elements
TL;DR: In this article, the elemental and isotopic composition of the solar nebula uniform was investigated and a comparison of meteorite and solar abundances was made with the Anders and Grevesse abundance table.
Journal ArticleDOI
Geology and major and trace element chemistry of late Archean weathering profiles in the Fortescue Group, Western Australia: implications for atmospheric PO2
TL;DR: In this paper, the authors have identified two thick weathering profiles between flows of the Mt Roe Basalt unit of the Fortescue Group, in the Pilbara area of Western Australia.
Journal ArticleDOI
Biogenic origin of intergrown Mo-sulphide- and carbonaceous matter in Lower Cambrian black shales (Zunyi Formation, southern China)
Beate Orberger,A. Vymazalova,Christiane Wagner,Michel Fialin,Jean-Paul Gallien,R. Wirth,Jan Pašava,Gilles Montagnac +7 more
TL;DR: The Lower Cambrian Zunyi Formation in southern China hosts complex intergrown phases of Mo-sulphides and anthracite-like carbonaceous matter and graphite as discussed by the authors.
References
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Book
Advanced Inorganic Chemistry
TL;DR: Cotton and Wilkinson's Advanced Inorganic Chemistry (AIC) as discussed by the authors is one of the most widely used inorganic chemistry books and has been used for more than a quarter century.
Journal ArticleDOI
Synthesis of the Elements in Stars
TL;DR: In this article, a count of the stable and radioactive elements and isotopes is given, and Table I,1 shows that only promethium has not been found in nature, whereas 99 elements are found terrestrially and technetium is found in stars.
Journal ArticleDOI
Determination of REE, Ba, Fe, Mg, Na and K in carbonaceous and ordinary chondrites
TL;DR: In this paper, the exact determination of REE and Ba abundances in three carbonaceous (Orgueil Cl, Murchison C2 and Allende C3) and seven olivine-bronzite chondrites were carried out by mass spectrometric isotope dilution technique.
Journal ArticleDOI
A chemical-petrologic classification for the chondritic meteorites.
W. R. Van Schmus,John A. Wood +1 more
TL;DR: In this article, a two-dimensional classification grid based on chemical and petrologic subdivisions of chondritic meteorites is proposed, which extends the current chemical subdivisions to account for varying petrolic (implied metamorphic) properties within the primary chemical groups.