Limited latitudinal mantle plume motion for the Louisville hotspot

Journal article
(Original article)


Publication Details

Author(s): Koppers AAP, Yamazaki T, Geldmacher J, Gee JS, Pressling N, Hoshi H, Anderson L, Beier C, Buchs DM, Chen LH, Cohen BE, Deschamps F, Dorais MJ, Ebuna D, Ehmann S, Fitton JG, Fulton PM, Ganbat E, Hamelin C, Hanyu T, Kalnins L, Kell J, Machida S, Mahoney JJ, Moriya K, Nichols ARL, Rausch S, Sano SI, Sylvan JB, Williams R
Journal: Nature Geoscience
Publisher: Nature Publishing Group
Publication year: 2012
Volume: 5
Journal issue: 12
Pages range: 911-917
ISSN: 1752-0894


Abstract


Hotspots that form above upwelling plumes of hot material from the deep mantle typically leave narrow trails of volcanic seamounts as a tectonic plate moves over their location. These seamount trails are excellent recorders of Earth's deep processes and allow us to untangle ancient mantle plume motions. During ascent it is likely that mantle plumes are pushed away from their vertical upwelling trajectories by mantle convection forces. It has been proposed that a large-scale lateral displacement, termed the mantle wind, existed in the Pacific between about 80 and 50 million years ago, and shifted the Hawaiian mantle plume southwards by about 15° of latitude. Here we use 40 Ar/ 39 Ar age dating and palaeomagnetic inclination data from four seamounts associated with the Louisville hotspot in the South Pacific Ocean to show that this hotspot has been relatively stable in terms of its location. Specifically, the Louisville hotspot - the southern hemisphere counterpart of Hawai'i - has remained within 3-5° of its present-day latitude of about 51° €‰S between 70 and 50 million years ago. Although we cannot exclude a more significant southward motion before that time, we suggest that the Louisville and Hawaiian hotspots are moving independently, and not as part of a large-scale mantle wind in the Pacific. © 2012 Macmillan Publishers Limited. All rights reserved.



FAU Authors / FAU Editors

Beier, Christoph PD Dr.
Lehrstuhl für Endogene Geodynamik


External institutions
Aichi University of Education / 愛知教育大学
Australian National University (ANU)
Brigham Young University
Extremobiosphere Research Center, Japan Agency for Marine-Earth Science and Technology (JAMSTEC)
Fukui Prefectural Dinosaur Museum / 福井県立恐竜博物館
Mongolian Academy of Sciences / Монгол улсын Шинжлэх ухааны Академи
Nanjing University
National Institute of Advanced Industrial Science and Technology / 産業技術総合研究所 (AIST)
Oregon State University (OSU)
Paris Institute of Earth Physics / Institut de Physique du Globe de Paris (IPGP)
Technische Universität Braunschweig
Texas A&M University
Universität Bremen
Université Joseph Fourier (UJF Grenoble 1)
University of California, San Diego
University of Edinburgh
University of Hawaiʻi at Mānoa
University of Leicester
University of Nebraska-Lincoln
University of Oxford
University of Queensland
University of Southampton
University of Southern California (USC)
Waseda University / 早稲田大学


How to cite

APA:
Koppers, A.A.P., Yamazaki, T., Geldmacher, J., Gee, J.S., Pressling, N., Hoshi, H.,... Williams, R. (2012). Limited latitudinal mantle plume motion for the Louisville hotspot. Nature Geoscience, 5(12), 911-917. https://dx.doi.org/10.1038/ngeo1638

MLA:
Koppers, Anthony A. P., et al. "Limited latitudinal mantle plume motion for the Louisville hotspot." Nature Geoscience 5.12 (2012): 911-917.

BibTeX: 

Last updated on 2018-10-08 at 01:27