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Oxygen Isotope Variations of Basaltic Lavas and Upper Mantle Rocks

Eiler, John M. (2001) Oxygen Isotope Variations of Basaltic Lavas and Upper Mantle Rocks. In: Stable isotope geochemistry. Reviews in Mineralogy and Geochemistry. No.43. Mineralogical Society of America , Washington, DC, pp. 319-364. ISBN 9780939950553.

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This chapter summarizes the oxygen isotope geochemistry of terrestrial basalts and their mantle sources, including the conceptual framework for interpreting such data and the phenomenology of known variations. In particular, the first section outlines the motivations for and first-order results of oxygen isotope studies of terrestrial and lunar basalts over the last 30 years; the second section reviews oxygen isotopic fractionations among phases relevant for studying basalts and mantle rocks; the third summarizes variations in δ^(18)O of various crustal rocks that may contribute to the petrogenesis of basalts either as subducted source components or lithospheric contaminants; and the final and longest section describes observed oxygen isotope variations of major classes of terrestrial basalts and related mantle nodules with an emphasis on data generated within the last six years using laser-based fluorination techniques. In the interests of brevity, I do not describe in detail methods for oxygen isotope analysis or changes in δ^(18)O of volcanic rocks caused by sub-solidus alteration; however, these issues are important practical considerations for anyone studying oxygen isotope compositions of basalts and interested readers are directed to the following references: analytical methods: Sharp (1990), Mattey and Macpherson (1993), and Valley et al. (1995); basalt alteration: Muehlenbachs (1986), Alt (1993), and Staudigel et al. (1995).

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Additional Information:© 2001 Mineralogical Society of America. This chapter benefited from thorough reviews by I. Bindeman, R. Harmon and J. Valley. Thanks also are due to R. Kessel, I. Appora and Z. Wang for their comments on an early draft. Work reported in this paper was supported by NSF grant EAR 9805191.
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NSFEAR 9805191
Subject Keywords:Isotope geology
Series Name:Reviews in Mineralogy and Geochemistry
Issue or Number:43
Record Number:CaltechAUTHORS:20110107-083538782
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Official Citation:John M. Eiler; Oxygen isotope variations of basaltic lavas and upper mantle rocks (in Stable isotope geochemistry) Reviews in Mineralogy and Geochemistry (2001), 43 319-364
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:21642
Deposited By: Tony Diaz
Deposited On:25 Jan 2011 18:28
Last Modified:09 Nov 2021 15:59

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