@article{fdi:010080505,
  title = {{P}aleolimnological record of the {P}ampean plains ({A}rgentina) as a natural archive of {S}outh {A}merican hydroclimatic variability since the {LGM} to the {C}urrent {W}arm {P}eriod},
  author = {{C}una-{R}odriguez, {C}. and {P}iovano, {E}. {L}. and {G}arcia-{R}odriguez, {F}. and {S}ylvestre, {F}lorence and {R}ostek, {F}. and {B}ernasconi, {S}. {M}. and {A}riztegui, {D}.},
  editor = {},
  language = {{ENG}},
  abstract = {{L}aguna {M}ar {C}hiquita ({LMC}, 30 degrees 54'{S} - 62 degrees 51'{W}) is a highly variable and shallow saline lake, located in the {P}ampean {P}lains of {A}rgentina. {T}he paleolimnological record of {LMC} contains information on the environmental variability that occurred in a large area of {S}outhern {S}outh {A}merica since the {L}ast {G}lacial {M}aximum ({LGM}) until the present. {A}s inferred from the diatom assemblages, sedimentary features and geochemical proxies, prolonged intervals of high and lowstands have caused variations in water salinity, trophic state and sedimentary processes. {T}his is the first paleolimnological reconstruction covering the hydroclimatic variability that occurred over the last 25,000 cal yr {BP} in the {A}rgentinean {P}ampean region. {R}esults are in accordance with well-known global climatic phases. {T}he {L}ate {P}leistocene record is characterized by a scenario dominated by lowstands, hypersaline, and oligotrophic lake conditions. {R}adiocarbon ages (25,000-19,000 cal yr {BP}) indicate that the onset of the record is coeval with the {LGM}. {L}ater, a progressive lake water level increase was registered at 17,000 cal yr {BP}, which can be assigned to the {H}einrich {S}tadial 1. {A} shift toward comparatively drier conditions identified in the record between 14,700 and 13,000 cal yr {BP} can be chronologically related to the {A}ntarctic {C}old {R}eversal. {T}he transition from the {L}ate {P}leistocene to the {H}olocene (13,500-10,500 cal yr {BP}) is recorded by highstand phases while the {E}arly {H}olocene record is characterized by high to intermediate water levels. {T}he hydrological reconstruction corresponding to the {M}id-{H}olocene is characterized by alternating phases of high/lowstands. {T}he onset of the {L}ate {H}olocene record is marked by the development of dry conditions and thus lowstand phases, while around 1300 cal yr {BP} a distinct water lake level increase is recognized. {T}his humid phase, ascribed to the {M}edieval {C}limatic {A}nomaly, is followed by the record of lowstands between 500 and 1000 cal yr {BP}, being coeval with the {L}ittle {I}ce {A}ge. {T}he uppermost part of the record of {LMC} encompasses the {C}urrent {W}arm {P}eriod, showing a marked shift towards high lake water level conditions. {T}he hydrological variability registered in the paleolimnological record, highlights the importance of {L}aguna {M}ar {C}hiquita as an outstanding paleoclimate sensor of hydroclimatic variations for a large area of {S}outh {E}astern {S}outh {A}merica.},
  keywords = {{L}aguna {M}ar {C}hiquita ; {S}outheastern {S}outh {A}merica ; {P}alaeolimnology ; {S}aline lake ; {D}iatoms ; {ARGENTINE} ; {PAMPA} {PLAINE} ; {MAR} {CHIQUITA} {LAGUNE}},
  booktitle = {},
  journal = {{Q}uaternary {S}cience {R}eviews},
  volume = {250},
  numero = {},
  pages = {106675 [17 p.]},
  ISSN = {0277-3791},
  year = {2020},
  DOI = {10.1016/j.quascirev.2020.106675},
  URL = {https://www.documentation.ird.fr/hor/fdi:010080505},
}