CSDMS 2020 Webinars

CSDMS Summer Science Series III: Incision across a lithologic boundary: An example from the Central Rocky Mountains and High Plains

Vanessa Gabel

University of Colorado, United States

Fluvial incision since late Miocene time (5 Ma) has shaped the transition between the Central Rocky Mountains and adjacent High Plains. Despite a clear contrast in erodibility between the mountains and plains, erodibility has not been carefully accounted for in previous attempts to model the geomorphic evolution of this region. The focus of this work to date has been to constrain erodibility values with a simplistic, toy model, and to reconstruct the paleosurface of the Miocene Ogallala Formation prior to its dissection beginning at 5 Ma. This surface reconstruction will be used as an initial condition in subsequent modeling.

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Of interest for:
  • Terrestrial Working Group
  • Hydrology Focus Research Group