@article{fdi:010084600,
  title = {{I}lluminating past river incision, sediment source and pathways using luminescence signals of individual feldspar grains ({R}angitikei {R}iver, {N}ew {Z}ealand)},
  author = {{G}uyez, {A}. and {B}onnet, {S}. and {R}eimann, {T}. and {C}arretier, {S}{\'e}bastien and {W}allinga, {J}.},
  editor = {},
  language = {{ENG}},
  abstract = {{S}ingle-grain post-infrared infrared stimulated luminescence ({SG}-p{IRIR}) of feldspar has recently been introduced as a method to date {Q}uaternary deposits. {T}he method is particularly appropriate for fluvial deposits that cannot be dated by more conventional quartz optically stimulated luminescence dating and that are heterogeneously bleached (i.e. where only part of the grains is exposed to sufficient light to remove the full luminescence signal). {B}esides age estimation, single grain equivalent dose ({D}-e) distributions also reflect the variable bleaching degree and origins of grains. {T}hereby, the {SG}-p{IRIR} signal offers a valuable tool to reconstruct sediment pathways. {T}his study builds upon these ideas and develops a dual aspect that combined river terrace dating and {SG}-p{IRIR} sediment pathway reconstruction for fluvial deposits in terraces and modern river floodplain along the {R}angitikei {R}iver ({RR}), {N}ew {Z}ealand. {W}e found that the {RR} last aggrading phase (17.4 +/- 1.9 ka to 11.6 +/- 1.5 ka) was followed by a first phase of fast incision related to knickpoint retreat followed by a steady incision and widening of the {RR} canyon. {T}he {D}-e distribution of fluvial deposits varies accordingly, due in particular to variable input of bedrock particles with saturated p{IRIR} signal from landsliding of valley flanks. {O}ur study illustrates that the {SG}-p{IRIR} approach is well suited to date terraces and shows how {SG}-p{IRIR} {D}-e distributions provide proxies to reconstruct sediment sources and pathways.},
  keywords = {bleaching ; dating ; fluvial incision ; fluvial terrace ; geochronology ; knickpoint ; luminescence ; {N}ew {Z}ealand ; {R}angitikei {R}iver ; riverine landslides ; single grain ; {NOUVELLE} {ZELANDE} ; {RANGITIKEI} {COURS} {D}'{EAU}},
  booktitle = {},
  journal = {{E}arth {S}urface {P}rocesses and {L}andforms},
  volume = {[{E}arly access]},
  numero = {},
  pages = {[20 p.]},
  ISSN = {0197-9337},
  year = {2022},
  DOI = {10.1002/esp.5357},
  URL = {https://www.documentation.ird.fr/hor/fdi:010084600},
}