@article{fdi:010077068, title = {{A} new 20th century lake sedimentary record from the {A}tacama {D}esert/{C}hile reveals persistent {PDO} ({P}acific {D}ecadal {O}scillation) impact}, author = {{C}erda, {M}. and {E}vangelista, {H}. and {V}aldes, {J}. and {S}ifeddine, {A}bdelfettah and {B}oucher, {H}ugues and {N}ogueira, {J}. and {N}epomuceno, {A}. and {O}rtlieb, {L}uc}, editor = {}, language = {{ENG}}, abstract = {{T}he {A}tacama {D}esert lakes located at high altitudes with very low anthropogenic impacts preserve great potential to recover regional climate changes and environmental processes at a decadal to centennial time scales. {H}erein, we present a high-resolution analysis of the stratigraphy and metal composition of {I}nka {C}oya {L}ake sediment core, in order to clarify the main forcings acting on sedimentation rates and both eolian and precipitation patterns at {A}tacama {D}esert environment. {T}he results suggest that terrigenous inputs can be mainly related to the {PDO} ({P}acific {D}ecadal {O}scillation), while laminations preserve a direct association with {E}l {N}ino-{S}outhern {O}scillation - {ENSO} (4.2-5.3 yr cyclicity). {A}dditionally, the {C}u mining activities in {C}hile are recorded in the lake. {T}he sedimentation rates and precipitation patterns were associated with {ENSO}, highlighting the relation between {L}a {N}ina and wetter periods at {A}tacama. {F}inally, high-resolution analyses of the geochemical composition provided additional criteria to identify the erosion processes at the basin, suggesting different sources of sediments, which fluxes into the lake covariated with {PDO} at a decadal scale, especially during the 20th century.}, keywords = {{A}tacama ; {PDO} ; {L}ake sedimentology ; {E}lemental composition ; {C}opper record ; {CHILI} ; {ATACAMA} {DESERT}}, booktitle = {}, journal = {{J}ournal of {S}outh {A}merican {E}arth {S}ciences}, volume = {95}, numero = {}, pages = {art. 102302 [10 p.]}, ISSN = {0895-9811}, year = {2019}, DOI = {10.1016/j.jsames.2019.102302}, URL = {https://www.documentation.ird.fr/hor/fdi:010077068}, }