Tectonic architecture of the Tarapacá Basin in the northern Central Andes: New constraints from field and 2D seismic data

Vista sencilla de ítem
dc.contributor.authorFuentes, Guillermo
dc.contributor.authorMartínez, Fernando
dc.contributor.authorBascuñan, Sebastián
dc.contributor.authorArriagada, César
dc.contributor.authorMuñoz, Rodrigo
dc.date.accessioned2022-09-01T19:05:38Z
dc.date.available2022-09-01T19:05:38Z
dc.date.issued2018
dc.descriptionIndexación Scopuses
dc.description.abstractThe Tarapacá Basin is one of the larger basins created on the western margin of South America during the Mesozoic times. Regional studies focused their attention on understanding its Cenozoic surface structures, traditionally interpreted as a west-verging thrust and fold belt. However, its internal and deep architecture and the influence of previously developed Mesozoic extensional structures on its current structure have not been analyzed in detail. We used new field data and 2D seismic data to determine the tectonic architecture of the Tarapacá Basin. We have paid special attention to defining both the deep and superficial structures to understand its tectonic evolution. The seismic data reveal the existence of a series of half-graben structures along which Mesozoic synrift stratigraphic sequences accumulated. We also show that Upper Cretaceous and Cenozoic synorogenic sequences mainly accumulated over contractional folds (anticlines and synclines). The structure is characterized by a thick-skinned structural style dominated by structures inverted during the oblique reactivation of ancient Mesozoic normal faults and also by newly formed reverse faults in the form of shortcut and bypass faults. The presence of Upper Cretaceous to Tertiary synorogenic sequences over the contractional structures, separated by angular unconformities, allowed us to show that the basin inversion and its subsequent deformation occurred at least since the Late Cretaceous until Recent times. These results aid in understanding the role of extensional structures in the evolution of orogenic belts and can be compared with similar structures around the world. © 2018 The Authors.es
dc.description.urihttps://pubs-geoscienceworld-org.recursosbiblioteca.unab.cl/gsa/geosphere/article/14/6/2430/565650/Tectonic-architecture-of-the-Tarapaca-Basin-in-the
dc.identifier.citationGeosphere Volume 14, Issue 6, Pages 2430 - 2446 2018es
dc.identifier.doi10.1130/GES01697.1
dc.identifier.issn1553040X
dc.identifier.urihttps://repositorio.unab.cl/xmlui/handle/ria/23720
dc.language.isoenes
dc.publisherGeological Society of Americaes
dc.rights.licenseCC BY-NC
dc.subjectCentral Andeses
dc.subjectNorthern Chilees
dc.subjectArgentinaes
dc.titleTectonic architecture of the Tarapacá Basin in the northern Central Andes: New constraints from field and 2D seismic dataes
dc.typeArtículoes
Archivos
Bloque original
Mostrando 1 - 1 de 1
Miniatura
Nombre:
Fuentes_G_Tectonic_2018.pdf
Tamaño:
13.95 MB
Formato:
Adobe Portable Document Format
Descripción:
TEXTO COMPLETO EN INGLÉS
Descargar
Bloque de licencias
Mostrando 1 - 1 de 1
No hay miniatura disponible
Nombre:
license.txt
Tamaño:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descripción:
Descargar
Colecciones
FIng - Artículos de Revista