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
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Geochemistry, geochronology, and origin of the Neoarchean Planalto Granite suite, Carajás, Amazonian craton: A-type or hydrated charnockitic granites?
Gilmara Regina Lima Feio,Roberto Dall'Agnol,Elton Luiz Dantas,Moacir José Buenano Macambira,A.C.B. Gomes,A.S. Sardinha,Davis Carvalho de Oliveira,R.D. Santos,Patrick Araújo dos Santos +8 more
TL;DR: In this paper, a whole-rock geochemistry and LA-MC-ICPMS and Pb-evaporation geochronological data were obtained on zircon from the Neoarchean Planalto suite granites and associated charnockitic rocks of the Canaa area of the Carajas province, eastern Amazonian craton, Brazil.
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Attempted break-up of Rodinia at 850 Ma: geochronological evidence from the Seve–Kalak Superterrane, Scandinavian Caledonides
TL;DR: In this article, the authors interpreted the evidence of 850-900 Ma magmatism in Scandinavia, Scotland and Taimyr as bimodal rift magmatisms in connected arms during an attempted break-up of Rodinia.
Journal ArticleDOI
STRUCTURE, PETROLOGY, GEOCHEMISTRY AND ZIRCON U/Pb AND Pb/Pb GEOCHRONOLOGY OF THE SYNKINEMATIC ARCHEAN (2.7 Ga) A-TYPE GRANITES FROM THE CARAJÁS METALLOGENIC PROVINCE, NORTHERN BRAZIL
Carlos Eduardo de Mesquita Barros,Alex Souza Sardinha,Jaime dos Passos de Oliveira Barbosa,Moacir José Buenano Macambira,Pierre Barbey,Anne-Marie Boullier +5 more
TL;DR: In this paper, the authors studied three massifs: Igarape Gelado, Estrela and Serra do Rabo, and found that the A-type granites induced high-temperature ductile deformation in the contact aureole.
Journal ArticleDOI
Rare earth element geochemistry of massive sulfides-sulfates and gossans on the Southern Explorer Ridge
TL;DR: In this paper, a modified inductively coupled plasma-mass spectrometric technique was used to analyze massive sulfide-sulfate deposits on the Southern Explorer Ridge for 14 rare earth elements (REE).
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Aqueous alteration in the Northwest Africa 817 (NWA 817) Martian meteorite
Ph. Gillet,Jean-Alix Barrat,Etienne Deloule,Meenakshi Wadhwa,Albert Jambon,Violaine Sautter,Bertrand Devouard,Daniel R. Neuville,Karim Benzerara,M. Lesourd +9 more
TL;DR: In this paper, a new Martian meteorite of the nakhlite family (NWA 817) was found to contain traces of an iron-rich alteration product, which has been formed on the parent body of the meteorite (Mars).
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.
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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.