RT Journal Article
T1 Criterios geomorfológicos sobre actividad tectónica reciente a lo largo de la Costa Recta, Isla Decepción (Antártida Occidental)
A1 Pérez-López, R.
A1 Fernández-Ibáñez, F.
A1 Martínez Díaz, José J.
A1 Paredes, C.
A1 Giner Robles, Jorge L.
A1 Caselli, A.
AB Several active tectonic evidences are observed along Costa Recta, located eastward of Deception Island (western Antarctica): marine terraces and fluvial streams cutting a relict glacier. The height of both landforms decrease southward from Macaroni Point, appointing to a tilt movement across a fault plane. Fault planes were measured at Macaroni Point and Baily Head, with a main NNWSSE orientation, similar to the Costa Recta strike. From several scales o f measure, the orientation of the beach was established in two principal segments: N168QE, and N173QE. On the other hand, the beach and glacier dynamics and sedimentary deposits were studied. According to the morpho-tectonic analysis, we conclude that the Costa Recta beach is a retreat scarp of a submarine fault oriented NNW-SSE and located in the Bransfield Strait, although a geophysical study o f the marine bottom is needed to map the fault trace in an accurate way.
PB Sociedad Geológica de España.
SN 1576-5172
YR 2004
FD 2004
LK https://hdl.handle.net/20.500.14352/52530
UL https://hdl.handle.net/20.500.14352/52530
LA spa
NO Dirección General de Investigación Científica y Técnica
DS Docta Complutense
RD 4 may 2024