@article{fdi:010065407,
  title = {{E}volution of {I}rruputuncu volcano, {C}entral {A}ndes, northern {C}hile},
  author = {{R}odriguez, {I}. and {R}oche, {O}livier and {M}oune, {S}. and {A}guilera, {F}. and {C}ampos, {E}. and {P}izarro, {M}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he {I}rruputuncu is an active volcano located in northern {C}hile within the {C}entral {A}ndean {V}olcanic {Z}one ({CAVZ}) and that has produced andesitic to trachy-andesitic magmas over the last similar to 258 +/- 49 ka. {W}e report petrographical and geochemical data, new geochronological ages and for the first time a detailed geological map representing the eruptive products generated by the {I}rruputuncu volcano. {T}he detailed study on the volcanic products allows us to establish a temporal evolution of the edifice. {W}e propose that the {I}rruputuncu volcanic history can be divided in two stages, both dominated by effusive activity: {I}rruputuncu {I} and {II}. {T}he oldest identified products that mark the beginning of {I}rruputuncu {I} are small-volume pyroclastic flow deposits generated during an explosive phase that may have been triggered by magma injection as suggested by mingling features in the clasts. {T}his event was followed by generation of large lava flows and the edifice grew until destabilization of its {SW} flank through the generation of a debris avalanche, which ended {I}rruputuncu {I}. {N}ew effusive activity generated lavas flows to the {NW} at the beginning of {I}rruputuncu {II}. {I}n the meantime, lava domes that grew in the summit were destabilized, as shown by two well-preserved block-and-ash flow deposits. {T}he first phase of dome collapse, in particular, generated highly mobile pyroclastic flows that propagated up to similar to 8 km from their source on gentle slopes as low as 11 degrees in distal areas. {T}he actual activity is characterized by deposition of sulfur and permanent gas emissions, producing a gas plume that reaches 200 m above the crater. {T}he maximum volume of this volcanic system is of similar to 4 km(3), being one of the smallest active volcano of {C}entral {A}ndes.},
  keywords = {{I}rruputuncu volcano ; {C}entral {A}ndes ; {D}ebris avalanche ; {B}lock and ash flow ; {L}ava flow ; {CHILI} ; {ANDES} {CENTRE} ; {IRRUPUTUNCU} {VOLCAN}},
  booktitle = {},
  journal = {{J}ournal of {S}outh {A}merican {E}arth {S}ciences},
  volume = {63},
  numero = {},
  pages = {385--399},
  ISSN = {0895-9811},
  year = {2015},
  DOI = {10.1016/j.jsames.2015.08.012},
  URL = {https://www.documentation.ird.fr/hor/fdi:010065407},
}