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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Auteurs principaux:	Walter Montero, Jonathan C. Lewis, Maria Cristina Araya
Format:	article
Langue:	EN
Publié:	Nature Portfolio 2017
Sujets:	Medicine R Science Q
Accès en ligne:	https://doaj.org/article/850e5460f3054b6cb9bd6e547d8d7938
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spelling	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)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Walter Montero Jonathan C. Lewis Maria Cristina Araya The Guanacaste Volcanic Arc Sliver of Northwestern Costa Rica
description	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
work_keys_str_mv	AT waltermontero theguanacastevolcanicarcsliverofnorthwesterncostarica AT jonathanclewis theguanacastevolcanicarcsliverofnorthwesterncostarica AT mariacristinaaraya theguanacastevolcanicarcsliverofnorthwesterncostarica AT waltermontero guanacastevolcanicarcsliverofnorthwesterncostarica AT jonathanclewis guanacastevolcanicarcsliverofnorthwesterncostarica AT mariacristinaaraya guanacastevolcanicarcsliverofnorthwesterncostarica
_version_	1718394936629395456

The Guanacaste Volcanic Arc Sliver of Northwestern Costa Rica

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