BATHYMETRY AND ELECTRIC RESISTIVITY TOMOGRAPHY (ERT) APPLIED 1-09 TO MORPHO-STRUCTURAL CHARACTERIZATION OF PENINSULA USHUAIA, TIERRA DEL FUEGO, ARGENTINA

DONALDO BRAN; ALEJANDRO TASSONE; FEDERICO ESTEBAN; MARCO MENICHETTI; HORACIO LIPPAI; JUAN VILAS

BOLLETTINO DI GEOFISICA TEORICA ED APPLICATA

ISTITUTO NAZIONALE DI OCEANOGRAFIA E DI GEOFISICA

Lugar: Trieste; Año: 2013 vol. 54 p. 45 - 48

0006-6729

Peninsula Ushuaia is located on the northern margin of Beagle Chanel, south of Tierra del Fuego island. In this area the Fuegian Cordillera is characterized by E-W sinistral strike-slip faults of the Beagle Fault Zone System which are associated with several normal faults. This transtensional system, superposed to Andean compressive structures, has been originated as part of a wrench tectonics regime developed in the southernmost Andes since Late Cretaceous and especially during the Cenozoic time. Bathymetric and electric resistivity studies have been addressed to a better understanding of the morphology and the geometric relationship between lithologies in an area which is mostly covered by water bodies, Quaternary deposits and vegetation.