@article{fdi:010089962,
  title = {{P}rovenance of aeolian sands from the southeastern {S}ahara from a detrital zircon perspective},
  author = {{L}icht, {A}. and {F}olch, {A}. and {S}ylvestre, {F}lorence and {Y}acoub, {A}. {N}. and {C}ogn{\'e}, {N}. and {A}bderamane, {M}. and {G}uihou, {A}. and {K}isne, {N}.{M}. and {F}leury, {J}. and {R}ochette, {P}. and {N}k{\'e}, {B}.{E}.{B}. and {Z}agalo, {A}.{H}. and {P}oujol, {M}. and {D}eschamps, {P}ierre},
  editor = {},
  language = {{ENG}},
  abstract = {{S}ahara sands have been proposed to result from the extensive and repetitive recycling of much older sedimentary rocks - a necessary mechanism to explain their petrographic maturity and the similarity of their detrital zircon



populations at continental scale. {W}here and how this recycling occurs today remain poorly understood. {T}his study investigates the source of modern sands from the southeastern {S}ahara by leveraging on a large (n > 7800)



new dataset of detrital zircon ages from source rocks, modern and ancient dune fields in {C}had and {C}ameroon. {W}e show that zircon age populations show noticeable regional differences when analyzing a large n amount of ages,



questioning the similarity of detrital zircon populations in {S}aharan sands. {D}une fields from the driest parts of our sampling area have distinct age distributions that imply discrete sources with differences in bedrock zircon age



populations at regional (several 100 km) scale. {I}n the wetter, {S}ahelian part of our sampling area, the zircon age distribution of dune fields is best-explained by a significant contribution of recent alluvium from local wadis and



rivers to the aeolian sedimentary budget. {T}he origin of aeolian sands in the southeastern {S}ahara is thus local and polygenetic. {R}ecycling of older sedimentary rocks via physical abrasion is only prominent in the driest parts of



our sampling area and does not result in the homogenization of {S}aharan sands.},
  keywords = {{TCHAD} ; {CAMEROUN} ; {SAHARA} ; {ERDI} {PLATEAU} ; {DJOURAB} {DESERT} ; {BAH} {EL} {GHAZAL} {REGION} ; {KANEM} {DESERT}},
  booktitle = {},
  journal = {{Q}uaternary {S}cience {R}eviews},
  volume = {328},
  numero = {},
  pages = {108539 [8 ]},
  ISSN = {0277-3791},
  year = {2024},
  DOI = {10.1016/j.quascirev.2024.108539},
  URL = {https://www.documentation.ird.fr/hor/fdi:010089962},
}