Passive advection and dynamic reorganization of mountainous bedrock rivers: A landscape evolution modeling approach Conference Paper uri icon

abstract

  • Do river basins record reliably pervasive and long time scale tectonic deformation? A positive answer means that river basins advect passively with the crust over which they are imprinted in response to horizontal tectonic deformation. A negative answer means that drainage network reorganization by stream and area capture controls the planview morphology of fluvial landscapes, and erase partly or completely any earlier configuration of river organization. In order to investigate whether and under what conditions the planview of river basins contains a record of the tectonic horizontal deformation we take as a case study the Southern Alps of New Zealand. Castelltort et al.(this meeting) have presented a detailed analysis of the Southern Alps drainage network, showing significant differences between the east and the west flanks of the mountain range, and an apparent consistant pattern of deformation of the...

publication date

  • April 1, 2012