Muñoz-Salinas, E., Castillo, M., Sanderson, D. C.W. and Cresswell, A. (2018) First luminescence geochronology of the beach-dune ridges of Nayarit strand-plain (west-central Mexico). Journal of South American Earth Sciences, 88, pp. 642-648. (doi: 10.1016/j.jsames.2018.08.003)
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Abstract
Strand-plains are composed by beach-dune ridges that constitute coastal sedimentological records of continental erosion and associated climatic and geological controls on their formation. The strand-plain of Nayarit is one the most prominent strand-plains around the world as it is composed by > 250 well-preserved beach-dune ridges that distributes along > 200 km between the states of Nayarit and Sinaloa (west-central Mexico) and extends for 14 km inland. Although the strand-plain of Nayarit is of broad interest for understanding the evolution of Quaternary landscapes, it has remained understudied. To contribute to a better understanding of the landscape evolution of the strand-plain of Nayarit we present here a complete geochronology based on sixteen OSL dating ages distributed across three different transects of beach-dune ridges located from the coast towards the inland. Our data indicate that in all cases the oldest ridges initiated 2 ka. The depositional rates range from 6.0 m a –1 toward the south of the strand-plain, where is the mouth of Santiago and San Pedro rivers, which are the largest of the study area, to 1.8 m a –1 toward the north. These depositional rates are among the highest denudation rates reported in strand-plains around the world. We estimate that the formation of the coastal plain of Nayarit initiated 6 to 7 ka, which correspond to last period of the global marine stabilization after sea level rise.
| Item Type: | Articles |
|---|---|
| Additional Information: | This work was supported by grant UNAM-DGAPA-PAPIIT number IN105517. |
| Keywords: | Strand-plain, beach-dune ridges, luminescence dating, Nayarit, west-central Mexico. |
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Cresswell, Dr Alan and Sanderson, Professor David |
| Authors: | Muñoz-Salinas, E., Castillo, M., Sanderson, D. C.W., and Cresswell, A. |
| Subjects: | G Geography. Anthropology. Recreation > GB Physical geography |
| College/School: | College of Science and Engineering > Scottish Universities Environmental Research Centre |
| Research Group: | Environmental Physics |
| Journal Name: | Journal of South American Earth Sciences |
| Journal Abbr.: | JSAMES |
| Publisher: | Elsevier |
| ISSN: | 0895-9811 |
| ISSN (Online): | 1873-0647 |
| Published Online: | 07 August 2018 |
| Copyright Holders: | Copyright © 2018 Elsevier Ltd. |
| First Published: | First published in Journal of South American Earth Sciences 88: 642-648 |
| Publisher Policy: | Reproduced in accordance with the publisher copyright policy |
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