Artículo

Rodriguez-Parra, L.A.; Gaitán, C.; Montes, C.; Bayona, G.; Rapalini, A. "Arc-seamount collision: driver for vertical-axis rotations in Azuero, Panama" (2017) Studia Geophysica et Geodaetica. 61(2):199-218
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Abstract:

We present new paleomagnetic data of 25 sites (240 specimens) along the southwestern part of the Azuero Peninsula, Panama. The data show two paleomagnetic domains in the peninsula: a northern domain featuring uniformly large vertical-axis clockwise rotation values of 73.4 ± 12° across to Azuero Soná Fault Zone with a single mean direction with declination of 81.2° and inclination of -3.2° (95% confidence of 11.7° and precision parameter of 18.09), and a scattered paleomagnetic domain to the south. These contrasting domains could be attributed to the collision of fartravelled/ allochthonous seamounts that approached the Panama arc as subduction of the Farallon plate brought them to the margin. As consequence of this collision the fartravelled seamounts were fragmented and scattered along the margin while the Panama arc rotated into the colliding seamounts. These new paleomagnetic data suggest that the Campanian-Eocene arc segment in the Azuero Peninsula was originally oriented NE-SW, implying an original curvature for this part of the arc. © 2017, Institute of Geophysics of the ASCR, v.v.i.

Registro:

Documento: Artículo
Título:Arc-seamount collision: driver for vertical-axis rotations in Azuero, Panama
Autor:Rodriguez-Parra, L.A.; Gaitán, C.; Montes, C.; Bayona, G.; Rapalini, A.
Filiación:Departamento de Geociencias, Universidad de los Andes, Bogotá, Colombia
Corporación Geológica Ares, Bogotá, Colombia
Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires, Universidad de Buenos Aires - CONICET, Buenos Aires, Argentina
Palabras clave:collision-induced rotation; paleogeography; paleomagnetism; Panamanian Arc; fault zone; magnetic declination; paleogeography; paleomagnetism; seamount; Azuero Peninsula; Panama [Central America]
Año:2017
Volumen:61
Número:2
Página de inicio:199
Página de fin:218
DOI: http://dx.doi.org/10.1007/s11200-016-1173-1
Título revista:Studia Geophysica et Geodaetica
Título revista abreviado:Stud. Geophys. Geod.
ISSN:00393169
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00393169_v61_n2_p199_RodriguezParra

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Citas:

---------- APA ----------
Rodriguez-Parra, L.A., Gaitán, C., Montes, C., Bayona, G. & Rapalini, A. (2017) . Arc-seamount collision: driver for vertical-axis rotations in Azuero, Panama. Studia Geophysica et Geodaetica, 61(2), 199-218.
http://dx.doi.org/10.1007/s11200-016-1173-1
---------- CHICAGO ----------
Rodriguez-Parra, L.A., Gaitán, C., Montes, C., Bayona, G., Rapalini, A. "Arc-seamount collision: driver for vertical-axis rotations in Azuero, Panama" . Studia Geophysica et Geodaetica 61, no. 2 (2017) : 199-218.
http://dx.doi.org/10.1007/s11200-016-1173-1
---------- MLA ----------
Rodriguez-Parra, L.A., Gaitán, C., Montes, C., Bayona, G., Rapalini, A. "Arc-seamount collision: driver for vertical-axis rotations in Azuero, Panama" . Studia Geophysica et Geodaetica, vol. 61, no. 2, 2017, pp. 199-218.
http://dx.doi.org/10.1007/s11200-016-1173-1
---------- VANCOUVER ----------
Rodriguez-Parra, L.A., Gaitán, C., Montes, C., Bayona, G., Rapalini, A. Arc-seamount collision: driver for vertical-axis rotations in Azuero, Panama. Stud. Geophys. Geod. 2017;61(2):199-218.
http://dx.doi.org/10.1007/s11200-016-1173-1