Flank uplift and topography at the central Baikal rift (SE Siberia): a test of kinematic models for continental extension
Article Abstract:
The topography adjacent to the central Baikal rift controls the kinematics of extension operating within the rift zone. Fission track data reveal that the rift flanks have been affected by very little erosion since the onset of rifting. Geomorphological studies suggest very little prerift relief in the area. The topography thus represents rift-related tectonic uplift. Pure-shear lithospheric necking and pure-shear/simple-shear detachment models of extension effectively predict the topographic and Bouguer anomaly patterns along a profile across the central Baikal rift.
Publication Name: Tectonics
Subject: Earth sciences
ISSN: 0278-7407
Year: 1997
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The transantarctic mountains of southern Victoria Land: the application of apatite fission track analysis to a rift shoulder uplift
Article Abstract:
Apatite fission track datafrom southern Victoria Land reveals the structure and the history of upliftmentof the Transantarctic Mountains (TAM). Uplift is indicated to have begun at around 55 Ma. A large tilt block or flexure describes the overall mountain structure, typified by an upper plate passive mountain range. The TAM Front is characterized by north-south striking, steeply dipping normal faults with 40- 1000 m eastward displacements, representaing an upper plate breakaway zone. Major outlet glaciers cutting the TAM may also have transfer faults.
Publication Name: Tectonics
Subject: Earth sciences
ISSN: 0278-7407
Year: 1992
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Comment on "Flank uplift and topography at the central Baikal Rift (SE Siberia): a test of kinematic models for continental extension" by Peter van der Beek
Article Abstract:
A study on central Baikal rift flank uplift and topography questioned the applicability of the flexural cantilever model to the rift and other rift basins. The analysis, however, failed to consider many observed faults and employ a model that would represent the real upper crustal geological feature and process. The study committed an error in readily discounting the flexural cantilever model in rift basin modeling and failed to indicate the model's capacity to incorporate upper crustal fault geometries.
Publication Name: Tectonics
Subject: Earth sciences
ISSN: 0278-7407
Year: 1998
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