Short Length Scale Oxygen Isotope Heterogeneity in the Icelandic Mantle: Evidence from Plagioclase Compositional Zones

• Published in: Journal of Petrology
• Main Authors: Winpenny, B., Maclennan, J.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Oxford Journals, Oxford University Press 2014
• Subjects: 05 - Petrology - Igneous; Metamorphic and Volcanic Studies; Borgarhraun; Iceland
• Online Access: http://eprints.esc.cam.ac.uk/3248/; http://eprints.esc.cam.ac.uk/3248/1/Winpenny%20and%20Maclennan%20-%202014%20-%20Short%20Length%20Scale%20Oxygen%20Isotope%20Heterogeneity%20in.pdf; http://eprints.esc.cam.ac.uk/3248/4/Electronic_Appendix_3.pdf; http://eprints.esc.cam.ac.uk/3248/3/Electronic_Appendix_5.pdf; http://eprints.esc.cam.ac.uk/3248/2/Supplementary_Figure_S1.pdf; http://eprints.esc.cam.ac.uk/3248/5/Electronic_Appendix_1.xls; http://eprints.esc.cam.ac.uk/3248/6/Electronic_Appendix_2.xls; http://eprints.esc.cam.ac.uk/3248/7/Electronic_Appendix_4.xls; http://petrology.oxfordjournals.org/content/55/12/2537; https://doi.org/10.1093/petrology/egu066

Using a new high-resolution dataset, this study presents evidence for short length scale 18O/16O heterogeneity in the mantle source region of young (age ≲12 ka bp) Icelandic basalts. The dataset comprises secondary ion mass spectrometry determinations of 18O/16O in single compositional zones of plag...