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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Pb, Sr and Nd isotope study of the basement of the Mayumbian belt (Guena gneisses and Mfoubou granite, Congo) : implications for crustal evolution in Central Africa
TL;DR: U-Pb on zircon, Nd and Sr isotopic compositions are reported for the Guena gneisses and Mfoubou granite belonging to the Mayumbian belt of South-Western Congo.
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The Tregonning granite: petrogenesis of Li-mica granites in the Cornubian batholith
TL;DR: In this paper, it is proposed that volatiles derwed from either a mantle source or the crust/mantle interface have aided metasomatism of either residual S-type crust that earlier provided S type biotite granite magma, or basic (biotite-rich) granitoid, to produce a low-temperature, low-viscosity Li-mica granite melt that rose rapidly in the crust soon after the emplacement of associated Biotite granites.
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Mildly alkaline basalts from Pavagadh Hill, India; Deccan flood basalts with an asthenospheric origin
TL;DR: In this paper, the most primitive and perhaps as primitive as any basalts in the Deccan province of India are found at Pavagadh Hill, and the two three-phenocryst-basalt flows with Mg#∼0.70 and Ni/MgO∼33 are the most common basalts.
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Genesis of orbicular granitic rocks from the Ploumanac'h Plutonic Complex (Brittany,France): petrographical, mineralogical and geochemical constraints
TL;DR: In this article, the authors studied the formation of the orbicular body of high-K calc-alkaline La Clarte granite in the Ploumanac'h complex, which is composed of plumose K-feldspar around various nucleus.
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Neoproterozoic High-K Calc-Alkaline Granitoids from Bapa-Batié, North Equatorial Fold Belt, Central Cameroon: Petrogenesis and Geodynamic Significance
TL;DR: The plutonic granitoids of Bapa-Batié area resemble other Neoproterozoic high-K calc-alkaline granites of Cameroon and also display strong similarities with high-k calcalkaline plutons of eastern Nigeria and the Borborema Province in NE Brazil as mentioned in this paper.
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.
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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.
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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.