Oxygen Isotope Variations in Recent Magnesian Lavas from Iceland’s Northern Neovolcanic Zone
Geochemical variations of Icelandic lavas reflect both differences in the compositions and conditions and extents of melting of their sources (e.g., Thirlwall, 1994) and magmatic differentiation and crustal contamination (e.g., Gee et al., 1996). Discriminating between these two processes is key to...
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ftcaltechauth:oai:authors.library.caltech.edu:39275 2023-05-15T16:49:30+02:00 Oxygen Isotope Variations in Recent Magnesian Lavas from Iceland’s Northern Neovolcanic Zone Eiler, John Kitchen, Nami Gronvold, Karl McKenzie, Dan Stracke, Andreas Zindler, Alan 2000 application/pdf https://authors.library.caltech.edu/39275/ https://authors.library.caltech.edu/39275/1/Eiler_2000p372.pdf https://resolver.caltech.edu/CaltechAUTHORS:20130710-080646976 unknown Cambridge Publications https://authors.library.caltech.edu/39275/1/Eiler_2000p372.pdf Eiler, John and Kitchen, Nami and Gronvold, Karl and McKenzie, Dan and Stracke, Andreas and Zindler, Alan (2000) Oxygen Isotope Variations in Recent Magnesian Lavas from Iceland’s Northern Neovolcanic Zone. Journal of Conference Abstracts, 5 (2). p. 372. ISSN 1362-0886. https://resolver.caltech.edu/CaltechAUTHORS:20130710-080646976 <https://resolver.caltech.edu/CaltechAUTHORS:20130710-080646976> Article PeerReviewed 2000 ftcaltechauth 2020-04-26T16:35:43Z Geochemical variations of Icelandic lavas reflect both differences in the compositions and conditions and extents of melting of their sources (e.g., Thirlwall, 1994) and magmatic differentiation and crustal contamination (e.g., Gee et al., 1996). Discriminating between these two processes is key to constructing models of the composition and dynamics of the Iceland plume. Recent efforts to do so have focused on relatively magnesian lavas from the northern and western neovolcanic zones; Theistareykir volcano has been of particular importance for this work because of its abundance of magnesian lavas, the absence of a well-developed central volcanic complex, and the fact that it's lavas include the 'depleted' extreme to the array of compositional variations in Icelandic lavas generally (e.g., Elliott et al., 1991). We report here a study of oxygen-isotope variations in phenocrysts from recent Theistareykir lavas, conducted to search for evidence for both crustal contamination and oxygen isotope variations in the sub-Icelandic mantle. Article in Journal/Newspaper Iceland Caltech Authors (California Institute of Technology) Elliott ENVELOPE(102.867,102.867,-65.867,-65.867) |
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Caltech Authors (California Institute of Technology) |
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Geochemical variations of Icelandic lavas reflect both differences in the compositions and conditions and extents of melting of their sources (e.g., Thirlwall, 1994) and magmatic differentiation and crustal contamination (e.g., Gee et al., 1996). Discriminating between these two processes is key to constructing models of the composition and dynamics of the Iceland plume. Recent efforts to do so have focused on relatively magnesian lavas from the northern and western neovolcanic zones; Theistareykir volcano has been of particular importance for this work because of its abundance of magnesian lavas, the absence of a well-developed central volcanic complex, and the fact that it's lavas include the 'depleted' extreme to the array of compositional variations in Icelandic lavas generally (e.g., Elliott et al., 1991). We report here a study of oxygen-isotope variations in phenocrysts from recent Theistareykir lavas, conducted to search for evidence for both crustal contamination and oxygen isotope variations in the sub-Icelandic mantle. |
format |
Article in Journal/Newspaper |
author |
Eiler, John Kitchen, Nami Gronvold, Karl McKenzie, Dan Stracke, Andreas Zindler, Alan |
spellingShingle |
Eiler, John Kitchen, Nami Gronvold, Karl McKenzie, Dan Stracke, Andreas Zindler, Alan Oxygen Isotope Variations in Recent Magnesian Lavas from Iceland’s Northern Neovolcanic Zone |
author_facet |
Eiler, John Kitchen, Nami Gronvold, Karl McKenzie, Dan Stracke, Andreas Zindler, Alan |
author_sort |
Eiler, John |
title |
Oxygen Isotope Variations in Recent Magnesian Lavas from Iceland’s Northern Neovolcanic Zone |
title_short |
Oxygen Isotope Variations in Recent Magnesian Lavas from Iceland’s Northern Neovolcanic Zone |
title_full |
Oxygen Isotope Variations in Recent Magnesian Lavas from Iceland’s Northern Neovolcanic Zone |
title_fullStr |
Oxygen Isotope Variations in Recent Magnesian Lavas from Iceland’s Northern Neovolcanic Zone |
title_full_unstemmed |
Oxygen Isotope Variations in Recent Magnesian Lavas from Iceland’s Northern Neovolcanic Zone |
title_sort |
oxygen isotope variations in recent magnesian lavas from iceland’s northern neovolcanic zone |
publisher |
Cambridge Publications |
publishDate |
2000 |
url |
https://authors.library.caltech.edu/39275/ https://authors.library.caltech.edu/39275/1/Eiler_2000p372.pdf https://resolver.caltech.edu/CaltechAUTHORS:20130710-080646976 |
long_lat |
ENVELOPE(102.867,102.867,-65.867,-65.867) |
geographic |
Elliott |
geographic_facet |
Elliott |
genre |
Iceland |
genre_facet |
Iceland |
op_relation |
https://authors.library.caltech.edu/39275/1/Eiler_2000p372.pdf Eiler, John and Kitchen, Nami and Gronvold, Karl and McKenzie, Dan and Stracke, Andreas and Zindler, Alan (2000) Oxygen Isotope Variations in Recent Magnesian Lavas from Iceland’s Northern Neovolcanic Zone. Journal of Conference Abstracts, 5 (2). p. 372. ISSN 1362-0886. https://resolver.caltech.edu/CaltechAUTHORS:20130710-080646976 <https://resolver.caltech.edu/CaltechAUTHORS:20130710-080646976> |
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