@article{fdi:010072048, title = {{E}xhumation history and timing of supergene copper mineralisation in an arid climate : new thermochronological data from the {C}entinela {D}istrict, {A}tacama, {C}hile}, author = {{S}anchez, {C}. and {B}richau, {S}t{\'e}phanie and {R}iquelme, {R}. and {C}arretier, {S}{\'e}bastien and {B}issig, {T}. and {L}opez, {C}. and {M}podozis, {C}. and {C}ampos, {E}. and {R}egard, {V}. and {H}{\'e}rail, {G}{\'e}rard and {M}arquardt, {C}.}, editor = {}, language = {{ENG}}, abstract = {{S}upergene copper mineralisation ({SCM}) processes occur during the unroofing of porphyry copper deposits. {H}owever, the geomorphological stage during which the main mineralisation occurs is still under debate. {H}ere, we present 24 new thermochronological data from {C}enozoic intrusives and compare them with the evolution of supergene mineralisation from the {C}entinela {M}ining {D}istrict in the {A}tacama {D}esert. {O}ur results indicate a two-step cooling path: a rapid {L}ate {E}ocene exhumation followed by a slow denudation. {P}reviously published supergene mineralisation ages cluster after the main {U}pper {O}ligocene exhumation period. {O}urs is the first study that establishes the relationship between exhumation and supergene processes on the scale of a single mining district. {I}t confirms that {SCM} took place during pediplanation, likely a required condition for efficient {SCM} under arid climatic conditions, in contrast to wet tropical environments where {SCM} occurs during rapid relief growth but has limited preservation potential.}, keywords = {{CHILI} ; {ATACAMA} {DESERT}}, booktitle = {}, journal = {{T}erra {N}ova}, volume = {30}, numero = {1}, pages = {78--85}, ISSN = {0954-4879}, year = {2018}, DOI = {10.1111/ter.12311}, URL = {https://www.documentation.ird.fr/hor/fdi:010072048}, }