@article{fdi:010079880,
  title = {{A}ntarctic-like temperature variations in the {T}ropical {A}ndes recorded by glaciers and lakes during the last deglaciation},
  author = {{M}artin, {L}. {C}. {P}. and {B}lard, {P}. {H}. and {L}ave, {J}. and {J}omelli, {V}. and {C}harreau, {J}. and {C}ondom, {T}homas and {L}upker, {M}. and {ASTER} {T}eam},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he respective impacts of {N}orthern and {S}outhern {H}emispheric climatic changes on the {T}ropics during the last deglaciation remain poorly understood. {I}n the {H}igh {T}ropical {A}ndes, the {A}ntarctic {C}old {R}eversal ({ACR}, 14.3-12.9 ka {BP}) is better represented among morainic records than the {Y}ounger {D}ryas (12.9-11.7 ka {BP}). {H}owever, in the {A}ltiplano basin ({B}olivia), two cold periods of the {N}orthern {H}emisphere ({H}einrich {S}tadial la, 16.5-14.5 ka {BP}, and the {Y}ounger {D}ryas) are synchronous with (i) major advances or standstills of paleoglaciers and (ii) the highstands of giant paleolakes {T}auca and {C}oipasa. {H}ere, we present new cosmic ray exposure ({CRE}) ages from glacial landforms of the {B}olivian {A}ndes that formed during the last deglaciation ({T}ermination 1). {W}e reconstruct the equilibrium line altitudes ({ELA}) associated with each moraine and use them in an inverse algorithm combining paleoglaciers and paleolake budgets to derive temperature and precipitation during the last deglaciation. {O}ur temperature reconstruction ({AT} relative to present day) yields a consistent regional trend of progressive warming from {D}elta {T} = -5 to -2.5 degrees {C} during 17-14.5 ka {BP}, followed by a return to colder conditions around -4 degrees {C} during the {ACR} (14.5-12.9 ka {BP}). {T}he {C}oipasa highstand (12.9-11.8 ka {BP}) is coeval with another warming trend followed by {AT} stabilization at the onset of the {H}olocene (ca. 10 ka {BP}), around -3 degrees {C}. {O}ur results suggest that, during the last deglaciation (20-10 ka {BP}) atmospheric temperatures in the {T}ropical {A}ndes mimicked {A}ntarctic variability, whereas precipitation over the {A}ltiplano was driven by changes in the {N}orthern {H}emisphere.},
  keywords = {{P}aleoclimate dynamics ; {T}ropical {A}ndes ; {P}aleoglaciers ; {C}osmogenic ; nuclides ; {B}e-10 ; {H}e-3 ; {G}lacial geomorphology ; {L}ast deglaciation ; {T}ermination 1 ; {C}ontinental paleotemperature and precipitation reconstruction ; {G}lobal and regional climate ; {PEROU} ; {BOLIVIE} ; {ANDES} ; {ZONE} {TROPICALE}},
  booktitle = {},
  journal = {{Q}uaternary {S}cience {R}eviews},
  volume = {247},
  numero = {},
  pages = {106542 [28 ]},
  ISSN = {0277-3791},
  year = {2020},
  DOI = {10.1016/j.quascirev.2020.106542},
  URL = {https://www.documentation.ird.fr/hor/fdi:010079880},
}