Revised plate motions relative to the hotspots from combined Atlantic and Indian Ocean hotspot tracks

Abstract

Research Article| March 01, 1993 Revised plate motions relative to the hotspots from combined Atlantic and Indian Ocean hotspot tracks R. Dietmar Müller; R. Dietmar Müller 1Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California 92093-0208 Search for other works by this author on: GSW Google Scholar Jean-Yves Royer; Jean-Yves Royer 2Laboratoire de Géodynamique, 06230 Villefranche Sur Mer, France Search for other works by this author on: GSW Google Scholar Lawrence A. Lawver Lawrence A. Lawver 3Institute for Geophysics, University of Texas, 8701 Mopac Boulevard, Austin, Texas 78759-8345 Search for other works by this author on: GSW Google Scholar Author and Article Information R. Dietmar Müller 1Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California 92093-0208 Jean-Yves Royer 2Laboratoire de Géodynamique, 06230 Villefranche Sur Mer, France Lawrence A. Lawver 3Institute for Geophysics, University of Texas, 8701 Mopac Boulevard, Austin, Texas 78759-8345 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1993) 21 (3): 275–278. https://doi.org/10.1130/0091-7613(1993)021<0275:RPMRTT>2.3.CO;2 Article history First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation R. Dietmar Müller, Jean-Yves Royer, Lawrence A. Lawver; Revised plate motions relative to the hotspots from combined Atlantic and Indian Ocean hotspot tracks. Geology 1993;; 21 (3): 275–278. doi: https://doi.org/10.1130/0091-7613(1993)021<0275:RPMRTT>2.3.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract We use an updated model for global relative plate motions during the past 130 m.y. together with a compilation of bathymetry and recently published radiometric dates of major hotspot tracks to derive a plate-motion model relative to major hotspots in the Atlantic and Indian oceans. Interactive computer graphics were used to find the best fit of dated hotspot tracks on the Australian, Indian, African, and North and South American plates relative to present-day hotspots assumed fixed in the mantle. One set of rotation parameters can be found that satisfies all data constraints back to chron 34 (84 Ma) and supports little motion between the major hotspots in this hemisphere. For times between 130 and 84 Ma, the plate model is based solely on the trails of the Tristan da Cunha and Great Meteor hotspots. This approach results in a location of the Kerguelen hotspot distinct from and south of the Rajmahal Traps for this time interval. Between 115 and 105 Ma, our model locates the hotspot underneath the southern Kerguelen Plateau, which is compatible with an age estimate of this part of the plateau of 115-95 Ma. Our model suggests that the 85°E ridge between lat 10°N and the Afanasiy Nikitin seamounts may have been formed by a hotspot now located underneath the eastern Conrad rise. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.