Artículo
Tectonic rotations and internal structure of Eocene plutons in Chuquicamata, northern Chile
Somoza, Ruben
; Tomlinson, A. J.; Zaffarana, Claudia Beatriz
; Singer, Silvia Elisabet; Puigdomenech Negre, Carla Gimena
; Raposo, M. I. B.; Dilles, J. H.
Fecha de publicación:
05/2015
Editorial:
Elsevier Science
Revista:
Tectonophysics
ISSN:
0040-1951
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
A paleomagnetic and AMS study on Eocene plutonic complexes in the Calama area, northern Chile, reveals high-temperature, high-coercivity magnetizations of dominantly thermoremanent origin and magnetic fabrics controlled by magnetite. The paleomagnetic results indicate that ~ 43Ma plutons underwent clockwise tectonic rotation, whereas adjacent ~ 39Ma plutons did not undergo discernible rotation. This points to a middle Eocene age for the younger tectonic rotations associated with the Central Andean Rotation Pattern in the Chuquicamata-Calama area.
Palabras clave:
Central Andes
,
Tectonic Rotations
,
Chuquicamata
,
Magnetic Fabric
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Identificadores
Colecciones
Articulos(CCT - PATAGONIA NORTE)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Citación
Somoza, Ruben; Tomlinson, A. J.; Zaffarana, Claudia Beatriz; Singer, Silvia Elisabet; Puigdomenech Negre, Carla Gimena; et al.; Tectonic rotations and internal structure of Eocene plutons in Chuquicamata, northern Chile; Elsevier Science; Tectonophysics; 654; 5-2015; 113-130
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