@article{fdi:010086982,
  title = {{F}luvial bedrock gorges as markers for {L}ate-{Q}uaternary tectonic and climatic forcing in the {S}outhwestern {A}lps},
  author = {{C}ardinal, {T}. and {P}etit, {C}. and {R}olland, {Y}. and {A}udin, {L}aurence and {S}chwartz, {S}. and {V}alla, {P}. {G}. and {Z}erathe, {S}wann and {B}raucher, {R}.},
  editor = {},
  language = {{ENG}},
  abstract = {{F}luvial incision is one of the major erosive processes acting at {E}arth's surface and is highly sensitive to tectonic, isostatic and climatic variations. {T}he aim of this study is to distinguish between the short-term climatic fluctuations versus the long-term tectonic forcing contribution to {L}ate-{Q}uaternary fluvial incision, to better understand its timing and driving mechanism(s). {T}o achieve this goal, we measured in situ-produced {C}l-36 concentrations along several river-polished gorge walls in {J}urassic limestones of the {S}outhwestern {A}lps. {W}e then compared our dating results to previously-dated river gorges from nearby catchments. {T}his allows us to highlight three trends of distinct incision dynamics, and to discuss their relationships with climate and tectonics. {T}rend 1 shows the direct impact of a paraglacial crisis in the rivers connected to glaciated areas. {T}rend 2 suggests an incision wave propagating along the non-glaciated tributaries following enhanced incision in the main streams. {T}rend 3 displays steady and low incision rates in gorges disconnected from any fluvial response to glacier retreat. {T}rend 3 also seems to highlight the potential of resistant lithologies to isolate portions of the river network from post-glacial incision propagation. {O}ur analysis shows that gorges connected to upstream glaciers exhibit a significant response of fluvial incision to climatic fluctuations, evidenced by high-amplitudes incision rate variations hindering the long-term tectonic signal. {I}n contrast, incision rates inferred from disconnected gorges are in agreement with previously-estimated long-term denudation and rock-uplift rates in the area. {B}ased on the latter, we can conclude that {L}ate-{Q}uaternary river incision in the {S}outhwestern {A}lps is readjusting to both short-term climatic forcing and long-term tectonic forcing.},
  keywords = {{R}iver gorges ; {Q}uaternary ; {F}luvial incision ; {C}l-36 dating ; {S}outhwestern ; {A}lps ; {FRANCE} ; {ALPES}},
  booktitle = {},
  journal = {{G}eomorphology},
  volume = {418},
  numero = {},
  pages = {108476 [14 p.]},
  ISSN = {0169-555{X}},
  year = {2022},
  DOI = {10.1016/j.geomorph.2022.108476},
  URL = {https://www.documentation.ird.fr/hor/fdi:010086982},
}