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 Cenozoic times. Still unresolved are the cause, timing and kinematics of this intraplate tectonism. By integrating and discussing the different (kinematic and temporal) signals of Cenozoic tectonism...

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Bibliographic Details
Main Authors: ROSSETTI F., STORTI F., BUSETTI M., LISKER F., DI VINCENZO G., LAüFER A., SALVINI F., ROCCHI, SERGIO
Other Authors: Rossetti, F., Storti, F., Busetti, M., Lisker, F., DI VINCENZO, G., Laüfer, A., Rocchi, Sergio, Salvini, F.
Format: Article in Journal/Newspaper
Language:English
Published: 2006
Subjects:
SOUTHERN VICTORIA-LAND
PASSIVE MARGIN EVOLUTION
FISSION-TRACK ANALYSIS
DRY VALLEYS AREA
TRANSANTARCTIC MOUNTAINS
WEST ANTARCTICA
RIFT SYSTEM
UPLIFT HISTORY
PLATE
PSEUDOTACHYLYTES
Antarctic
Ross Sea
Transantarctic Mountains
Victoria Land
West Antarctica
Antarc*
Antarctica
Online Access:http://hdl.handle.net/11568/108915
Description
Summary:The Ross Sea region of the East Antarctic plate provides evidence for intraplate tectonic activity in Cenozoic times. Still unresolved are the cause, timing and kinematics of this intraplate tectonism. By integrating and discussing the different (kinematic and temporal) signals of Cenozoic tectonism, intraplate dextral shearing is recognized as the main tectonic regime controlling the structural architecture of the Ross Sea region from the Mid-Eocene (c. 40- 50 Ma) onward. We speculate that propagation and persistence of this tectonic regime through time constitutes a feasible seismogenetic framework to explain past and current tectonism in the Ross Sea region.

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