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The Origin, Evolution, and Environmental Impact of Oceanic Large Igneous Provinces edited by Clive R. Neal Department of Civil & Environmental Engineering & Earth Sciences 156 Fitzpatrick Hall University of Notre Dame Notre Dame, Indiana 46556 USA William W. Sager Department of Earth and Atmospheric Sciences University of Houston Houston, Texas 77204-5007 USA Takashi Sano Department of Geology and Paleontology National Museum of Nature and Science Tsukuba 305-0005 Japan Elisabetta Erba Department of Earth Sciences Università degli Studi di Milano 20133 Milan Italy Special Paper 511 3300 Penrose Place, P.O. Box 9140 Boulder, Colorado 80301-9140, USA 2015 Downloaded from http://pubs.geoscienceworld.org/books/book/chapter-pdf/961737/spe511-00.pdf by guest on 23 September 2021 Copyright © 2015, The Geological Society of America (GSA), Inc. All rights reserved. Copyright is not claimed on content prepared wholly by U.S. government employees within the scope of their employment. 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GSA Books Science Editors: Kent Condie and Richard A. “Skip” Davis, Jr. Library of Congress Cataloging-in-Publication Data The origin, evolution, and environmental impact of oceanic large igneous provinces / edited by Clive R. Neal, Department of Civil & Environmental Engineering & Earth Sciences, University of Notre Dame, Notre Dame, Indiana [and three others]. pages cm. — (Geological Society of America special paper ; 511) Summary: “Gathers together papers focused on understanding oceanic large igneous provinces from their origin and evolution to environmental impacts. Research presented has made extensive use of dredge samples and cores collected by scientific ocean drilling. Samples from terrestrial sequences are also integrated into understanding global environmental consequences of oceanic LIPs”— Provided by publisher. Includes bibliographical references. ISBN 978-0-8137-2511-6 (pbk.) 1. Igneous rocks. 2. Volcanism. 3. Flood basalts. 4. Magmatism. 5. Petrology. I. Neal, Clive R., editor. QE461.O65 2015 552′.10162—dc23 2015010920 Cover: Shaded-relief bathymetry chart of the western Pacific Ocean basin illustrating the many oceanic plateaus in this region. Plot is of the measured and estimated global bathymetry data set (v.17.1) first published in 1997 by W.H.F. Smith and D.T. Sandwell (Global sea floor topography from satellite altimetry and ship depth soundings: Science, v. 277, p. 1956–1962, doi:10.1126/science.277.5334.1956). Warm colors represent shallow depths whereas cool colors denote large depths. 10 9 8 7 6 5 4 3 2 1 Downloaded from http://pubs.geoscienceworld.org/books/book/chapter-pdf/961737/spe511-00.pdf by guest on 23 September 2021 Contents Dedication . v Introduction . .vii PART 1. HAWAII AND THE AZORES 1. Petrology, geochemistry, and ages of lavas from Northwest Hawaiian Ridge volcanoes . 1 Michael O. Garcia, John R. Smith, Jonathan P. Tree, Dominique Weis, Lauren Harrison, and Brian R. Jicha 2. Geochemical and geochronological constraints on the evolution of the Azores Plateau . 27 Christoph Beier, Karsten M. Haase, and Wafa Abouchami PART 2. SHATSKY RISE 3. Noble gas evidence for the presence of recycled material in magma sources of the Shatsky Rise . .57 Takeshi Hanyu, Kenji Shimizu, and Takashi Sano 4. Boron and chlorine contents of basalts from the Shatsky Rise, IODP Expedition 324: Implications for the alteration of oceanic plateaus . .69 Masaya Miyoshi, Takashi Sano, Kenji Shimizu, Adélie Delacour, Toshiaki Hasenaka, Yasushi Mori, and Takaaki Fukuoka 5. Reorganization of the Pacific-Izanagi-Farallon triple junction in the Late Jurassic: Tectonic events before the formation of the Shatsky Rise . .85 Masao Nakanishi, William W. Sager, and Jun Korenaga 6. The Shatsky Rise oceanic plateau structure from two-dimensional multichannel seismic reflection profiles and implications for oceanic plateau formation . 103 Jinchang Zhang, William W. Sager, and Jun Korenaga 7. Application of the two-dimensional continuous wavelet transforms to imaging of the Shatsky Rise plateau using marine seismic data . .127 Au K. Vuong, Jinchang Zhang, Richard L. Gibson, Jr., and William W. Sager 8. Paleomagnetism of igneous rocks from the Shatsky Rise: Implications for paleolatitude and oceanic plateau volcanism . 147 William W. Sager, Margaret Pueringer, Claire Carvallo, Masahiro Ooga, Bernard Housen, and Masako Tominaga 9. Lithium isotope evidence for magmatic assimilation of hydrothermally influenced crust beneath oceanic large igneous provinces . 173 Takashi Sano and Yoshiro Nishio iii Downloaded from http://pubs.geoscienceworld.org/books/book/chapter-pdf/961737/spe511-00.pdf by guest on 23 September 2021 iv Contents PART 3. ONTONG JAVA PLATEAU 10. Tectonic reconstructions in magnetic quiet zones: Insights from the Greater Ontong Java Plateau . .185 Michael T. Chandler, Paul Wessel, and Brian Taylor 11. Topographic expression of the Danger Islands Troughs and implications for the tectonic evolution of the Manihiki Plateau, western equatorial Pacific Ocean . .195 Masao Nakanishi, Yasuyuki Nakamura, Millard F. Coffin, Kaj Hoernle, and Reinhard Werner 12. Homogenization of magmas from the Ontong Java Plateau: Olivine-spinel compositional evidence . .221 Takashi Sano 13. Alkalic magmatism in the Lyra Basin: A missing link in the late-stage evolution of the Ontong Java Plateau . 233 Kenji Shimizu, Takashi Sano, Maria Luisa G. Tejada, Hironobu Hyodo, Keiko Sato, Katsuhiko Suzuki, Qing Chang, and Masao Nakanishi 14. Isotopic evidence for a link between the Lyra Basin and Ontong Java Plateau . 251 Maria Luisa G. Tejada, Kenji Shimizu, Katsuhiko Suzuki, Takeshi Hanyu, Takashi Sano, Masao Nakanishi, Shun’ichi Nakai, Akira Ishikawa, Qing Chang, Takashi Miyazaki, Yuka Hirahara, Toshiro Takahashi, and Ryoko Senda PART 4. OCEANIC ANOXIC EVENTS AND CRETACEOUS ENVIRONMENTAL PERTURBATIONS 15. Environmental consequences of Ontong Java Plateau and Kerguelen Plateau volcanism . 271 Elisabetta Erba, Robert A. Duncan, Cinzia Bottini, Daniele Tiraboschi, Helmut Weissert, Hugh C. Jenkyns, and Alberto Malinverno 16. Geochemistry of an Aptian bedded chert succession from the deep Pacific basin: New insights into Cretaceous oceanic anoxic event (OAE) 1a . 305 Junichiro Kuroda, Natsuko Ihoriya, Rie S. Hori, Nanako O. Ogawa, Minoru Ikehara, Masaharu Tanimizu, and Naohiko Ohkouchi 17. Intersite discrepancy in the amplitude of marine negative 13C excursion at the onset of early Aptian oceanic anoxic event 1a: Reconciliation through Sr isotopic screening of peculiar diagenetic overprint on the Pacific reference section (Deep Sea Drilling Project Site 463) . 329 Atsushi Ando Downloaded from http://pubs.geoscienceworld.org/books/book/chapter-pdf/961737/spe511-00.pdf by guest on 23 September 2021 Dedication In Memory of John Joseph Mahoney (1952–2012) On Friday, 23 November 2012, the Large Igneous Province (LIP) and broader geological communities lost a bastion in our fi elds. John Joseph Mahoney died at the age of 59 after a brief and unexpected illness. John spent his career studying continental fl ood basalts, oceanic plateaus, seamount chains, and mid-ocean ridges. He pursued related research into topics such as the dynamics of mantle melting and the use of geo- neutrinos to understand Earth’s internal radioactivity. He was awarded a Regents’ Medal for Excellence in Research by the University of Hawai‘i in 1995, and with Mike Coffi n (now at the University of Tasmania) established the Large Igneous Provinces Commission of the International Association of Volcanology and Chemistry of the Earth’s Interior (IAVCEI) in 1993, staying at its helm until 1998. John conducted numer- ous fi eld excursions both on land (e.g., Deccan Traps, Tibet, Madagascar, Solomon Islands) and at sea (e.g., Kerguelen Plateau, Shatsky Rise, Ontong Java Plateau, Manihiki Plateau) to investigate LIPs. Those of us fortunate to have been in the fi eld with John knew him to be as meticulous conducting fi eldwork as he was in the lab! He had a laser-like focus on collecting the proper samples to answer major scientifi c questions. His detailed contributions to our fi eld were many and varied: John published over 100 scientifi c papers, edited four research volumes (see Vanderkluysen and Sheth, 2014, Journal of Asian Earth Sciences, v. 84, p. 3–8, doi:10.1016/j.jseaes.2013.12.009), and established and directed one of the best isotope laboratories in the world. John was born on 26 December 1952 and grew up in the Montclair neighborhood of Denver, Colorado.