Browsing ELibrary by Author "Carlson R.W."
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Browsing ELibrary by Author "Carlson R.W."
Now showing items 1-10 of 10
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Tomascak P.B.; Carlson R.W.; Shirey S.B. (1999)A new method is presented for the preparation of geological materials (water and rock) and their accurate analysis, by multiple collector magnetic sector ICP-MS, for the isotopic composition of lithium. Based on multiple ...
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Tera F.; Carlson R.W. (1999)An evaluation of early solar system chronometry by the Pb-Pb and U-Pb methods is provided. Specifically, three consequential factors are examined: procedure of age calculation, extent of terrestrial Pb contamination, and ...
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Carlson R.W.; Hauri E.H. (2001)A new technique that uses multicollector plasma-ionization mass spectrometry (MC-ICP-MS) for the determination of Ag isotopic composition is reported. By correcting for instrument-induced mass fractionation of Ag by ...
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Kehm K.; Hauri E.H.; Alexander C.M.O'D.; Carlson R.W. (2003)The first cold plasma ICP-MS (inductively coupled plasma mass spectrometer) Fe isotope study is described. Application of this technique to the analyses of Fe isotopes in a number of meteorites is also reported. The ...
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Carlson R.W. (1995)Variations in the isotopic composition of rocks derived from the upper mantle can be used to infer the chemical history and structure of the Earth's interior. The most prominent material in the upper mantle is the source ...
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Pietruszka A.J.; Carlson R.W.; Hauri E.H. (2002)We describe analytical techniques for the measurement of 226Ra-230Th-238U disequilibria in volcanic rocks using plasma ionization multicollector mass spectrometry (MC-ICP-MS). Our methods build upon previous MC-ICP-MS ...
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RADIOMETRIC AGES OF BASALTIC ACHONDRITES AND THEIR RELATION TO THE EARLY HISTORY OF THE SOLAR SYSTEM Tera F.; Carlson R.W.; Boctor N.Z. (1997)Pb-Pb mineral isochrons were determined for three cumulate eucrites (Moama, Moore County, and Serra de Mage) and three noncumulate eucrites (Nuevo Laredo, Bouvante, and Stannern). Two noncumulate eucrites (Bereba and ...
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Pearson D.G.; Shirey S.B.; Bulanova G.P.; Carlson R.W.; Milledge H.J. (1999)We have measured the Re-Os isotopic compositions of individual syngenetic sulfide inclusions from three different growth zones within a central cross section plate cut from a single Siberian diamond. Individual sulfides ...
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Pearson D.G.; Shirey S.B.; Carlson R.W.; Boyd F.R.; Pokhilenko N.P.; Shimizu N. (1995)A suite of peridotite xenoliths from kimberlites intruding the Siberian craton indicate the presence of lithospheric mantle over 150 km thick at 350 Ma. We report Sr-Nd isotope data for minerals from the peridotite xenoliths ...
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Becker H.; Carlson R.W.; Jochum K.P. (2000)The trace element compositions of eclogites, blueschists and mafic granulites from high-pressure terranes have been analysed to investigate element losses and fractionation that occur during dehydration of oceanic basalt ...
Now showing items 1-10 of 10
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