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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Dissertation
Étude multi-approches des voiles bactériens du Paléoprotérozoïque (2,1 Ga, Gabon) : Biogénicité, minéralogie et biogéochimie
TL;DR: Ceci et al. as discussed by the authors investigated the sedimentation of Gabon and found that the concentration of elements traces (TE) in the MRS is higher than in the sediment encaissant.
Journal ArticleDOI
Nature of Cretaceous dolerite dikes with two distinct trends in the Damodar Valley, eastern India: Constraints on their linkage to mantle plumes and large igneous provinces from 40Ar/39Ar geochronology and geochemistry
TL;DR: In this article, two distinct sets of Cretaceous dolerite dikes intrude the Chhotanagpur gneissic complex of eastern India, mostly within the Damodar Valley Gondwanan sedimentary basins.
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Partial melting of ultrahigh-pressure metamorphic rocks at convergent continental margins: Evidences, melt compositions and physical effects
TL;DR: In this paper, the phase equilibrium model of UHP metamorphic melts is used to predict when partial melting occurred if the P-T path of a given rock is provided, and the residual assemblages after melt extraction are also significant to indicate partial melting.
Journal ArticleDOI
Geochemistry and U–Pb zircon age of the Paleoproterozoic metasedimentary rocks from the Bidou I, Nyong Series, Cameroon: Implications for provenance and tectonic setting
Brice Kamguia Woguia,Gus Djibril Kouankap Nono,Philomene Nga Essomba Tsoungui,Evine Laure Tanko Njiosseu,Patrick Ayonta Kenne,Jean Paul Nzenti +5 more
Dissertation
Origine, évolution et exhumation des leucogranites peralumineux de la chaîne hercynienne armoricaine : implication sur la métallogénie de l'uranium
TL;DR: In this paper, the cycle of the formation of leucogranites in the Massif armoricain is investigated. But, the main focus of the work is to understand the evolution of the leucoglranites and their exhumation in sub-surface.
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.