| U-series constraints on mantle melting and magma evolution Contributor(s): Koornneef, J. M. (Author) |
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ISBN: 3659146005 ISBN-13: 9783659146008 Publisher: LAP Lambert Academic Publishing OUR PRICE: $81.05 Product Type: Paperback Published: June 2012 |
| Additional Information |
| BISAC Categories: - Science | Earth Sciences - General |
| Physical Information: 0.48" H x 6" W x 9" (0.69 lbs) 208 pages |
| Descriptions, Reviews, Etc. |
| Publisher Description: The main part of this book investigates mantle melting beneath Iceland based on the geochemistry of postglacial lavas collected across the Iceland hotspot. The use of a wide variety of geochemical tracers such as major and trace elements, Hf and Nd isotopes (Chapter 2) and U-series disequilibria (Chapter 4) allows constraining the relative influence of physical source parameters and dynamic melting processes. Particularly U-series isotopes, which inform us on rates of mantle melting are a sensitive tool to map the lateral expression of the temperature anomaly beneath Iceland and to resolve variability in melt productivity as a result of source heterogeneity. To determine the U-series disequilibria recorded by the Icelandic basalts a new technique was developed to chemically separate U, Th, Pa and Ra from a single basaltic aliquot (Chapter 3). In the final part of this book (Chapter 5) the potential to measure in situ U-Th disequilibria in titanite by femto second LA-MC-ICPMS is investigated. The study aimed to spatially resolve variability in U-series in accessory minerals from Laacher See Volcano, Germany to constrain timescales of magma evolution within the crust. |
