An alternative model for early Tertiary absolute plate motions

Abstract

Research Article| August 01, 1978 An alternative model for early Tertiary absolute plate motions Donna M. Jurdy Donna M. Jurdy 1Department of Geological and Geophysical Sciences, Princeton University, Princeton, New Jersey 08540 Search for other works by this author on: GSW Google Scholar Author and Article Information Donna M. Jurdy 1Department of Geological and Geophysical Sciences, Princeton University, Princeton, New Jersey 08540 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1978) 6 (8): 469–472. https://doi.org/10.1130/0091-7613(1978)6<469:AAMFET>2.0.CO;2 Article history First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Donna M. Jurdy; An alternative model for early Tertiary absolute plate motions. Geology 1978;; 6 (8): 469–472. doi: https://doi.org/10.1130/0091-7613(1978)6<469:AAMFET>2.0.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 The absolute plate motions for early Tertiary time are reconsidered. The no-net-torque determination of Solomon and others indicated absolute plate motions at 55 m.y. ago that were considerably different from the present motions. To test whether these motions are truly characteristic of early Tertiary time or merely a consequence of uncertainties, an alternative model for the relative motions is considered. A single major change is made in the relative motions scheme: Antarctica is treated as two plates. The role of Antarctica is particularly important in the relative motion scheme because it is the sole link between the large Pacific Ocean plates and the other, largely continental plates. Although this relative plate motion model for early Tertiary time does not yield absolute motions that are compatible with those of the present, there are considerable differences from Solomon and others' determination. Thus, past relative plate motions must be further constrained to give absolute motions that can confidently be compared to the present set and used in testing hypotheses about driving forces. This content is PDF only. Please click on the PDF icon to access. 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.