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

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 tec...

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Bibliographic Details
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
Description
Summary: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.

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