Comment on the International Atomic Energy Agency Report on the Advisory Group Meeting on Stable Isotope Reference Samples for Geochemical and Hydrological Investigation, Vienna, Austria, September 19-21, 1983

Coplen, T. B.; Friedman, Irving; O'Neil, J. R.

Abstract:

According to U.S. Geological Survey records, a report prepared by R. Gonfiantini summarizing the findings and recommendations of the 1983 Advisory Group Meeting on Stable Isotope Reference Samples for Geochemical and Hydrologic Investigations held in Vienna does not accurately represent the consultants ‘ consensus on three important points. The consultants (1) recommended no value for the C02-H20 oxygen isotope fractionation factor, not the cited value of 1.04115, (2) adopted a value of 1.0309 rather than 1.03086 to relate the PDB and SMOW scales, and (3) adopted a firm 180 value of -2.20% for NBS-19 on the PDB scale rather than agreeing that this would be a tentative value subject to modification when more measurements in selected laboratories are available. (USGS)

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USGS Numbered Series

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26649

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Coplen, T. B.; Friedman, Irving; O'Neil, J. R.

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ENGLISH

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iii, 7 p. ;28 cm.

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U.S. Geological Survey ; Open-file Services Section, Western Distribution Branch [distributor],

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Water-Resources Investigations Report

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WRI

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84-4136

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Comment on the International Atomic Energy Agency Report on the Advisory Group Meeting on Stable Isotope Reference Samples for Geochemical and Hydrological Investigation, Vienna, Austria, September 19-21, 1983; 1984; WRI; 84-4136; Coplen, T. B.; Friedman, Irving; O‘Neil, J. R.