Paleomagnetism of the Moenave Formation: Implications for the Mesozoic North American apparent polar wander path

Research Article| March 01, 1989 Paleomagnetism of the Moenave Formation: Implications for the Mesozoic North American apparent polar wander path Eric J. Ekstrand; Eric J. Ekstrand 1Department of Geosciences, University of Arizona, Tucson, Arizona 85721 Search for other works by this author on: GSW Google Scholar Robert F. Butler Robert F. Butler 1Department of Geosciences, University of Arizona, Tucson, Arizona 85721 Search for other works by this author on: GSW Google Scholar Geology (1989) 17 (3): 245–248. https://doi.org/10.1130/0091-7613(1989)017<0245:POTMFI>2.3.CO;2 Article history first online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share MailTo Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation Eric J. Ekstrand, Robert F. Butler; Paleomagnetism of the Moenave Formation: Implications for the Mesozoic North American apparent polar wander path. Geology 1989;; 17 (3): 245–248. doi: https://doi.org/10.1130/0091-7613(1989)017<0245:POTMFI>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 Previous syntheses of the Mesozoic North American apparent polar wander (APW) path have suggested the presence of a sharp corner or cusp (the J-1 cusp) in the Late Triassic to Early Jurassic. Paleomagnetic data from the Lower Jurassic (Sinemurian) Moenave Formation clarify details of this important feature in the APW path. A total of 220 oriented cores were collected from 31 levels in four stratigraphic sections of the Moenave Formation in northern Arizona and southern Utah. Thermal demagnetization in multiple steps, generally between 600 and 660°C, was successful in revealing the characteristic component of natural remanent magnetization at 23 sites. The paleomagnetic pole is lat = 58.2°N, long = 51.9°E; radius of 95% confidence (α95) = 4.5°. The Moenave pole position verifies the existence of the J-1 cusp, and thus supports the use of paleomagnetic Euler pole analysis in modeling the pattern of APW. 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.