The Guanacaste Volcanic Arc Sliver of Northwestern Costa Rica
Abstract Recent studies have shown that the Nicoya Peninsula of northwestern Costa Rica is moving northwestward ~11 mm a−1 as part of a tectonic sliver. Toward the northwest in El Salvador the northern sliver boundary is marked by a dextral strike-slip fault system active since Late Pleistocene time...
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Nature Portfolio
2017
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oai:doaj.org-article:850e5460f3054b6cb9bd6e547d8d79382021-12-02T11:52:59ZThe Guanacaste Volcanic Arc Sliver of Northwestern Costa Rica10.1038/s41598-017-01593-82045-2322https://doaj.org/article/850e5460f3054b6cb9bd6e547d8d79382017-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-01593-8https://doaj.org/toc/2045-2322Abstract Recent studies have shown that the Nicoya Peninsula of northwestern Costa Rica is moving northwestward ~11 mm a−1 as part of a tectonic sliver. Toward the northwest in El Salvador the northern sliver boundary is marked by a dextral strike-slip fault system active since Late Pleistocene time. To the southeast there is no consensus on what constitutes the northern boundary of the sliver, although a system of active crustal faults has been described in central Costa Rica. Here we propose that the Haciendas-Chiripa fault system serves as the northeastern boundary for the sliver and that the sliver includes most of the Guanacaste volcanic arc, herein the Guanacaste Volcanic Arc Sliver. In this paper we provide constraints on the geometry and kinematics of the boundary of the Guanacaste Volcanic Arc Sliver that are timely and essential to any models aimed at resolving the driving mechanism for sliver motion. Our results are also critical for assessing geological hazards in northwestern Costa Rica.Walter MonteroJonathan C. LewisMaria Cristina ArayaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017) |
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Medicine R Science Q Walter Montero Jonathan C. Lewis Maria Cristina Araya The Guanacaste Volcanic Arc Sliver of Northwestern Costa Rica |
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Abstract Recent studies have shown that the Nicoya Peninsula of northwestern Costa Rica is moving northwestward ~11 mm a−1 as part of a tectonic sliver. Toward the northwest in El Salvador the northern sliver boundary is marked by a dextral strike-slip fault system active since Late Pleistocene time. To the southeast there is no consensus on what constitutes the northern boundary of the sliver, although a system of active crustal faults has been described in central Costa Rica. Here we propose that the Haciendas-Chiripa fault system serves as the northeastern boundary for the sliver and that the sliver includes most of the Guanacaste volcanic arc, herein the Guanacaste Volcanic Arc Sliver. In this paper we provide constraints on the geometry and kinematics of the boundary of the Guanacaste Volcanic Arc Sliver that are timely and essential to any models aimed at resolving the driving mechanism for sliver motion. Our results are also critical for assessing geological hazards in northwestern Costa Rica. |
format |
article |
author |
Walter Montero Jonathan C. Lewis Maria Cristina Araya |
author_facet |
Walter Montero Jonathan C. Lewis Maria Cristina Araya |
author_sort |
Walter Montero |
title |
The Guanacaste Volcanic Arc Sliver of Northwestern Costa Rica |
title_short |
The Guanacaste Volcanic Arc Sliver of Northwestern Costa Rica |
title_full |
The Guanacaste Volcanic Arc Sliver of Northwestern Costa Rica |
title_fullStr |
The Guanacaste Volcanic Arc Sliver of Northwestern Costa Rica |
title_full_unstemmed |
The Guanacaste Volcanic Arc Sliver of Northwestern Costa Rica |
title_sort |
guanacaste volcanic arc sliver of northwestern costa rica |
publisher |
Nature Portfolio |
publishDate |
2017 |
url |
https://doaj.org/article/850e5460f3054b6cb9bd6e547d8d7938 |
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AT waltermontero theguanacastevolcanicarcsliverofnorthwesterncostarica AT jonathanclewis theguanacastevolcanicarcsliverofnorthwesterncostarica AT mariacristinaaraya theguanacastevolcanicarcsliverofnorthwesterncostarica AT waltermontero guanacastevolcanicarcsliverofnorthwesterncostarica AT jonathanclewis guanacastevolcanicarcsliverofnorthwesterncostarica AT mariacristinaaraya guanacastevolcanicarcsliverofnorthwesterncostarica |
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