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
More filters
Journal ArticleDOI
Petrographic and geochemical characteristics of upper Miocene Tekkedag volcanics (Central Anatolia—Turkey)
TL;DR: In this article, the authors used Confocal Raman Spectral Resonance Spectroscopy (CRS) to define the mineral types of the Tekkedag volcanic complex, which is exposed to the southwest of Kayseri located within the Central Anatolian Volcanic Province of Turkey.
Journal ArticleDOI
Rare-earth elements as geochemical criteria of endogenous sources of microelements contained in oil
TL;DR: In this paper, the authors present data on the REE contained in 50 oil samples taken from six oil and gas regions that are based on oil fraction composition analysis using ICP MS.
Journal ArticleDOI
Petrology, 40Ar/39Ar age, Sr-Nd isotope systematics, and geodynamic significance of an ultrapotassic (lamproitic) dyke with affinities to kamafugite from the easternmost margin of the Bastar Craton, India
N. V. Chalapathi Rao,Atiullah,Ray Burgess,Purnendu Nanda,A.K. Choudhary,Samarendra Sahoo,Bernd Lehmann,Ngazipmi Chahong +7 more
TL;DR: In this article, the authors reported the mineralogy, bulk-rock geochemistry, 40Ar/39Ar (whole-rock) age and radiogenic (Sr and Nd) isotope composition of an ultrapotassic dyke from Sakri (Nuapada lamproite field) located at the tectonic contact between the easternmost margin of the Bastar craton and Eastern Ghats Mobile Belt, India.
Journal ArticleDOI
Paleomagnetic Study of Lavas from the Popocatepetl Volcanic Region, Central Mexico
Gennaro Conte,Jaime Urrutia-Fucugauchi,Avto Goguitchaichvili,Ana Maria Soler-Arechalde,O. Morton-Bermea,Alberto Incoronato +5 more
TL;DR: In this article, a paleodirectional and paleointensity study of 16 Popocatepetl lava flows is presented for a study of the remanence carried by Ti-poor titanomagnetite during flow cooling.
References
More filters
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.