Torsvik, Trond H. and Meert, Joseph G. and Smethurst, Mark A. and Evans, David A. and Ripperdan, Robert L. and Kirschvink, Joseph L. (1998) Polar Wander and the Cambrian - Response. Science, 279 (5347). p. 9. ISSN 0036-8075. https://resolver.caltech.edu/CaltechAUTHORS:20141124-084127319
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Abstract
Torsvik et al. question the reliability of the paleomagnetic data used in our report (1). In discussing the Sept Iles B pole (2), which they and other workers have previously treated as one of the most reliable Vendian pole readings from Laurentia (3, 4), they disagree with our recapitulation of its 540-Ma Rb-Sr age (1). The variance in Rb-Sr ages for the Sept Iles complex was discussed thoroughly by Higgins and Doig (5), who developed a geochronologic- petrologic model of the complex that showed emplacement occurring at about 540 Ma. Their well-defined isochron (5) seems perferable to an assignment of 575 Ma that is based on comparison of a paleomagnetic pole with the better-dated Callander complex (3, 4); this latter approach seems circular.
| Item Type: | Article | |||||||||
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| Additional Information: | © 1998 American Association for the Advancement of Science. Received 28 October 1997; accepted 17 November 1997. | |||||||||
| Issue or Number: | 5347 | |||||||||
| Record Number: | CaltechAUTHORS:20141124-084127319 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20141124-084127319 | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 52084 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | Tony Diaz | |||||||||
| Deposited On: | 24 Nov 2014 21:33 | |||||||||
| Last Modified: | 03 Mar 2020 13:01 |
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