Abstract
The comment by Day et al. (Contrib Mineral Petrol, 2012) (1) discusses the validity of the previously obtained oxygen isotope data for El Hierro and La Palma (Canary Island) olivines, (2) questions the approach by Gurenko et al. (Contrib Mineral Petrol 162:349–363, 2011) of using weakly correlated variations of δ18Oolivine values with X px (proportion of pyroxenite-derived melt in the parental magma), and (3) provides reasons why oxygen isotope data by secondary ion mass spectrometry (SIMS) “offer sensitive means for detecting melt-crust interactions.” We respond these comments and report a new set of oxygen isotope measurements performed by SIMS and single-grain laser fluorination methods. These measurements confirm our previous data and conclusions and demonstrate the ability of the SIMS technique to analyze O isotopes in terrestrial samples with 2-sigma uncertainty better than ±0.25 ‰.
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Acknowledgments
This study was supported by CRPG (contribution number 2173), the CNRS “poste rouge” grant to AAG, and the NSF EAR-CAREER 0844772 grant to INB. We thank Chris Harris for providing a thorough, insightful review of the manuscript and improving English. Editorial handling by Jochen Hoefs is gratefully acknowledged.
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Communicated by J. Hoefs.
This reply refers to the comment available at 10.1007/s00410-012-0755-3.
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Gurenko, A.A., Bindeman, I.N. & Chaussidon, M. Reply to “Oxygen isotope heterogeneity of the mantle beneath the Canary Islands: a discussion of the paper of Gurenko et al.”. Contrib Mineral Petrol 164, 185–189 (2012). https://doi.org/10.1007/s00410-012-0756-2
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DOI: https://doi.org/10.1007/s00410-012-0756-2