Author: Edward C. WalkerPublisher:
ISBN:
Category : Copper
Languages : en
Pages : 62
Book Description
Some Natural Variations in the Relative Abundance of Copper Isotopes
Author: Edward C. WalkerPublisher:
ISBN:
Category : Copper
Languages : en
Pages : 62
Book Description
Nuclear Science Abstracts
Author: Geological Survey Professional Paper
Author: Geochemistry of Non-Traditional Stable Isotopes
Author: Clark M. JohnsonPublisher: Walter de Gruyter GmbH & Co KG
ISBN: 1501509365
Category : Science
Languages : en
Pages : 472
Book Description
The goal for Volume 55 of Reviews in Mineralogy and Geochemistry was to bring together a summary of the isotope geochemistry of non-traditional stable isotope systems as is known through 2003 for those elements that have been studied in some detail, and which have a variety of geochemical properties. In addition, recognizing that many of these elements are of interest to workers who are outside the traditional stable isotope fields, we felt it was important to include discussions on the broad isotopic variations that occur in the solar system, theoretical approaches to calculating isotopic fractionations, and the variety of analytical methods that are in use. We hope, therefore, that this volume proves to be useful to not only the isotope specialist, but to others who are interested in the contributions that these non-traditional stable isotopes may make toward understanding geochemical and biological cycles. The review chapters in this volume were the basis for a two-day short course on nontraditional stable isotopes held prior (May 15-16, 2004) to the spring AGU/CGU Meeting in Montreal, Canada.
Short Papers in the Geological Sciences
Author: U.S. Geological Survey Professional Paper
Author: Geophysical Abstracts ...
Author: Compilation of Minimum and Maximum Isotope Ratios of Selected Elements in Naturally Occurring Terrestrial Materials and Reagents
Author: Tyler B. CoplenPublisher:
ISBN:
Category : Geochemistry
Languages : en
Pages : 114
Book Description
Documented variations in the isotopic compositions of some chemical elements are responsible for expanded uncertainties in the standard atomic weights published by the Commission on Atomic Weights and Isotopic Abundances of the International Union of Pure and Applied Chemistry. This report summarizes reported variations in the isotopic compositions of 20 elements that are due to physical and chemical fractionation processes (not due to radioactive decay) and their effects on the standard atomic weight uncertainties. For 11 of those elements (hydrogen, lithium, boron, carbon, nitrogen, oxygen, silicon, sulfur, chlorine, copper, and selenium), standard atomic weight uncertainties have been assigned values that are substantially larger than analytical uncertainties because of common isotope abundance variations in materials of natural terrestrial origin. For 2 elements (chromium and thallium), recently reported isotope abundance variations potentially are large enough to result in future expansion of their atomic weight uncertainties. For 7 elements (magnesium, calcium, iron, zinc, molybdenum, palladium, and tellurium), documented isotope-abundance variations in materials of natural terrestrial origin are too small to have a significant effect on their standard atomic weight uncertainties.
Geological Survey Professional Paper
Author: Geological Survey (U.S.)Publisher:
ISBN:
Category :
Languages : en
Pages : 684
Book Description
Author: