Geochemistry and geochronology of Cenozoic plutons of Viti Levu, Fiji ...

• Main Authors: Todd, Erin, Stork, Allen, Drewes, Elizabeth, Tani, Kenichiro, Allen, Charlotte, Gill, James
• Format: Dataset
• Language: English
• Published: Interdisciplinary Earth Data Alliance (IEDA) 2021
• Subjects: Other; tonalite, island arc, Fiji; Todd; National Institute of Polar Research
• Online Access: https://dx.doi.org/10.26022/ieda/111854; https://ecl.earthchem.org/view.php?id=1854

This dataset contains whole rock analyses of samples from 10 Cenozoic plutons on Viti Levu, Fiji. It compiles analyses from nearly 50 years of graduate research projects investigating the origins of continental crust-like plutons in an island arc setting. Methods for characterizing the bulk rock compositions primarily include XRF and ICP-MS, and, for a few samples, Emission, Gamma, and Spark Source spectroscopy. Radiogenic isotopes of Sr, Nd, Pb and Hf are also present for a subset of these samples, analyzed by MC-ICPMS and TIMS. This contribution also provides new U/Pb ratios and ages, trace element compositions, and Hf and O isotope ratios for zircons recovered from 13 of the pluton samples, plus 2 detrital sand samples. U/Pb ratios were measured by both SHRIMP and LA-ICPMS, at three different laboratories – Australian National University (ANU), National Institute of Polar Research (NIPR), and University of California, Santa Barbara (UCSB). The NIPR and UCSB measurements are of grain interiors, whereas the ... : Chris S. Marien, Elizabeth K. Drewes-Todd, Allen Stork, Erin Todd, James B. Gill, J. Elis Hoffmann, Kenichiro Tani, Charlotte M. Allen, Carsten Münker, (Submitted), Juvenile continental crust evolution in an oceanic arc setting: petrogenesis of Cenozoic Yavuna and Colo plutons of Viti Levu, Fiji, Geochimica et Cosmochimica Acta ...