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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Geochemistry and Genesis of the S-Type, Cordierite-Andalusite-Bearing Capillitas Batholith, Argentina
Alejandro J. Toselli,Alcides N. Sial,Julio Saavedra,Juana N. Rossi de Toselli,Valderez P. Ferreira +4 more
TL;DR: The Ordovician Famatinian-age magmatic cordierite-andalusite-bearing Capillitas batholith, in the Pampean Ranges of northwestern Argentina, encompasses a coarsely porphyritic to equigranular two-mica monzogranite with equigenular, fine-grained, late leucogranitic muscovite-rich facies.
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Paleozoic and Lower Mesozoic magmas from the eastern Klamath Mountains (North California) and the geodynamic evolution of northwestern America
Henriette Lapierre,Marc Brouxel,Francis Albarède,C. Coulin,Christophe Lécuyer,P. Martin,Georges Mascle,O. Rouer +7 more
TL;DR: The geodynamic evolution of the eastern Klamath Mountains during Paleozoic to Early Mesozoic times is constrained by the geological, petrological and geochemical features of its island-arcs and related marginal basin this paper.
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Structural-metamorphic evolution of late proterozoic ophiolites and precambrian basement in the central asian foldbelt of Mongolia
TL;DR: The late Proterozoic and Palaeozoic Central Asian foldbelt is regarded as one of the best examples which demonstrates that processes of lateral crustal growth and obduction-accretion tectonics took place since at least late Precambrian times.
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Petrogenetic Appraisal of Early Palaeozoic Granitoids of Kinnaur District, Higher Himachal Himalaya, India
Brajesh Singh,Santosh Kumar +1 more
TL;DR: The early Palaeozoic felsic magmatism of Kinnaur district is represented by more-orless equivalent Akpa granitoids (477±29 Ma) and Rakcham granitoid (453±9 Ma), which form an integral part of the Central Crystalline Zone in the southern portion of the Tethys Himalayan Tectogen as discussed by the authors.
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Recognising different sediment provenances within a passive margin setting: Towards characterising a sediment source to the west of the British late Carboniferous sedimentary basins
TL;DR: In this paper, the authors used trace element geochemistry to distinguish between two major sediment pathways from the west of the Pennine Basin and the South Wales Coalfield in a passive margin setting.
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.