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Abstract:

Deception Island (South Shetlands, Antarctica) is one of the most active volcanoes in Antarctica, having erupted recently in 1967, 1969 and 1970, damaging scientific stations on the island. It is also seismically very active. The island has attracted the attention of many researchers as it constitutes an undisturbed natural laboratory to study seismo-volcanic events and how they affect landscape modelling and evolution. One of the most remarkable geological and geomorphological features on Deception Island is the linearity of its easternmost coastal landform, the origin of which remains unknown. Some answers, based on presence of strike-slip fault or on the ice cap and beach geomorphological dynamics, have been reported in the literature. Our new work provides several indications of the existence of a dip-slip submarine fault, parallel to the coast (NNW-SSE), which suggests a tectonic origin for this morphological feature. Uplifted marine terraces, incision of a fluvial network over the ice cap, normal faulting parallel to the coast in the north and south rock heads bounding the beach and sharp shelf-break with rather constant slope, constitute some of this evidence. Terrace uplift and fluvial channel incision decreasing southward from Macaroni Point, indicates possible tilt movement across this inferred fault plane. © Antarctic Science Ltd.

Registro:

Documento: Artículo
Título:Costa Recta beach, Deception Island, West Antarctica: A retreated scarp of a submarine fault?
Autor:Fernández-Ibáñez, F.; Pérez-López, R.; Martínez-Díaz, J.J.; Paredes, C.; Giner-Robles, J.L.; Caselli, A.T.; Ibáñez, J.M.
Filiación:Dpto. de Geodinámica, F. de Ciencias, Universidad de Granada, 18002, Granada, Spain
Dpto. de C.C. Ambientales Y Rec. Naturales, Facultad de Farmacia, Universidad San Pablo-CEU, 28688 Boadilla del Monte, Madrid, Spain
Dpto. de Geodinámica, F. C.C. Geológicas, Universidad Complutense de Madrid, 28040, Madrid, Spain
Dpto. de Matemática Aplicada Y Métodos Informáticos, E.T.S. Ingenieros de Minas, Universidad Politécnica de Madrid, 28003, Madrid, Spain
Dpto. Cs. Geológicas, Fac. Cs. Ex. Y Nat., Pab.2, 1428, Buenos Aires, Argentina
Instituto Andaluz de Geofísica, Campus de Cartuja s/n, Universidad de Granada, 18071 Granada, Spain
Palabras clave:Active tectonics; Fault escarpment; Straight coast; Tectonic geomorphology; Uplifted terraces; coastal landform; fault scarp; submarine feature; Antarctica; Arctic and Antarctic; Deception Island; South Shetland Islands; World
Año:2005
Volumen:17
Número:3
Página de inicio:418
Página de fin:426
DOI: http://dx.doi.org/10.1017/S0954102005002841
Título revista:Antarctic Science
Título revista abreviado:Antarct. Sci.
ISSN:09541020
CODEN:ANTSE
PDF:https://bibliotecadigital.exactas.uba.ar/download/paper/paper_09541020_v17_n3_p418_FernandezIbanez.pdf
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09541020_v17_n3_p418_FernandezIbanez

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Citas:

---------- APA ----------
Fernández-Ibáñez, F., Pérez-López, R., Martínez-Díaz, J.J., Paredes, C., Giner-Robles, J.L., Caselli, A.T. & Ibáñez, J.M. (2005) . Costa Recta beach, Deception Island, West Antarctica: A retreated scarp of a submarine fault?. Antarctic Science, 17(3), 418-426.
http://dx.doi.org/10.1017/S0954102005002841
---------- CHICAGO ----------
Fernández-Ibáñez, F., Pérez-López, R., Martínez-Díaz, J.J., Paredes, C., Giner-Robles, J.L., Caselli, A.T., et al. "Costa Recta beach, Deception Island, West Antarctica: A retreated scarp of a submarine fault?" . Antarctic Science 17, no. 3 (2005) : 418-426.
http://dx.doi.org/10.1017/S0954102005002841
---------- MLA ----------
Fernández-Ibáñez, F., Pérez-López, R., Martínez-Díaz, J.J., Paredes, C., Giner-Robles, J.L., Caselli, A.T., et al. "Costa Recta beach, Deception Island, West Antarctica: A retreated scarp of a submarine fault?" . Antarctic Science, vol. 17, no. 3, 2005, pp. 418-426.
http://dx.doi.org/10.1017/S0954102005002841
---------- VANCOUVER ----------
Fernández-Ibáñez, F., Pérez-López, R., Martínez-Díaz, J.J., Paredes, C., Giner-Robles, J.L., Caselli, A.T., et al. Costa Recta beach, Deception Island, West Antarctica: A retreated scarp of a submarine fault?. Antarct. Sci. 2005;17(3):418-426.
http://dx.doi.org/10.1017/S0954102005002841