@article{fdi:010084909,
  title = {{D}o river profiles record along-stream variations of low uplift rate?},
  author = {{C}arretier, {S}{\'e}bastien and {N}iviere, {B}. and {G}iamboni, {M}. and {W}inter, {T}.},
  editor = {},
  language = {{ENG}},
  abstract = {{S}patial variations of gradients in landscapes may be used to identify and quantify recent deformation. {T}he problem with doing this is to determine whether tectonic or climatic forcing is responsible for these variations, especially for low uplift rate environments ( << 1 mm yr(-1)) where climate changes may have erased tectonic features. {W}e evaluate the respective contribution of low uplift rate ( similar to 0.1 mm yr(-1)) and {P}leistocene climate oscillations on gradient variations of two comparable river profiles crossing different uplift zones in the southern {U}pper {R}hine {G}raben. {W}e compare the observed points of discontinuity in river profile (knickpoints) and convex portions (knickzones) with those predicted by a detachment-limited model that includes stochastic short-term and cyclic long-term variations in climate, a bedrock detachment threshold and rock uplift. {T}he detachment-limited model is chosen as it predicts the development of persistent knickpoints. {D}iffering values of the shear stress exponent, erosion threshold, climate variability and uplift pattern have been checked. {O}ur modeling suggests that climate changes had no significant effects on profiles and that anomalies are more likely due to anticline growth. {T}his surprising result arises from the combination of a very low regional uplift rate and the detachment-limited assumption. {T}he detachment-limited model implies an upstream propagation of knickpoints and knickzones generated by uplift at the outlet during dry climate periods of low erosion. {T}he greater the uplift rate, the larger the variations in river bed elevation. {T}hus, for high uplift rate, knickpoints and knickzones generated by climate oscillations are more likely to hide tectonic features. {T}his result seems counterintuitive because it suggests that tectonic knickzones will be better preserved in low uplift rate environments, provided that the lithology is homogeneous.},
  keywords = {{FRANCE}},
  booktitle = {},
  journal = {{J}ournal of {G}eophysical {R}esearch {E}arth {S}urface},
  volume = {111},
  numero = {{F}2},
  pages = {{F}02024 -- {NIL}_35--{NIL}_50},
  ISSN = {0148-0227},
  year = {2006},
  DOI = {10.1029/2005{JF}000419},
  URL = {https://www.documentation.ird.fr/hor/fdi:010084909},
}