Eocene initiation of Ross Sea dextral faulting and implications for East Antarctic neotectonics

• Published in: Journal of the Geological Society
• Main Authors: ROSSETTI, FEDERICO, SALVINI, Francesco, Storti F, Busetti M, Lisker F, Di Vincenzo G, Laufer AL, Rocchi S
• Other Authors: Rossetti, Federico, Storti, F, Busetti, M, Lisker, F, Di Vincenzo, G, Laufer, Al, Rocchi, S, Salvini, Francesco
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: 2006
• Subjects: Antarctica; strike-slip faulting; neotectonics; Antarctic; Ross Sea; Antarc*
• Online Access: http://hdl.handle.net/11590/119453; https://doi.org/10.1144/0016-764905-005

The Ross Sea region of the East Antarctic plate provides evidence for intraplate tectonic activity in 13 Cenozoic times. Still unresolved are the cause, timing and kinematics of this intraplate tectonism. By 14 integrating and discussing the different (kinematic and temporal) signals of Cenozoic tectonism, intraplate 15 dextral shearing is recognized as the main tectonic regime controlling the structural architecture of the Ross 16 Sea region from the Mid-Eocene (c. 40–50 Ma) onward. We speculate that propagation and persistence of this 17 tectonic regime through time constitutes a feasible seismogenetic framework to explain past and current 18 tectonism in the Ross Sea region.