@article{fdi:010088413,
  title = {{T}he late {H}olocene {N}ealtican lava-flow field, {P}opocat{\'e}petl volcano, central {M}exico : emplacement dynamics and future hazards},
  author = {{R}amírez-{U}ribe, {I}. and {S}iebe, {C}. and {C}hevrel, {M}agdalena {O}ryaelle and {F}erres, {D}. and {S}alinas, {S}.},
  editor = {},
  language = {{ENG}},
  abstract = {{P}opocatepetl, one of the most hazardous volcanoes worldwide, poses significant threats for nearby populations in central {M}exico. {T}herefore, it is important to reconstruct its eruptive history, including estimates of lava-flow emplacement times and their rheological properties. {T}hese studies define possible future eruptive scenarios and are necessary to mitigate the risk. {S}tratigraphic studies of the cal 350-50 {B}.{C}. {L}orenzo {P}linian pumice sequence indicate that effusive activity ({N}ealtican lava-flow field) occurred shortly after explosive activity, reflecting drastic changes in the eruptive dynamics. {I}t was likely due to the efficient degassing of the magma during the {P}linian phase and a decrease of magma ascent and decompression rates. {M}agma mixing, fractional crystallization, and a minor crust assimilation are the processes controlling the differentiation of the {N}ealtican lavas. {W}e used lava chemical and mineralogical composition to estimate lava-flow viscosities, and used high-resolution elevation data to estimate emplacement times. {R}esults indicate that lava viscosities of andesites and dacites ranged from 109 to 1012 {P}a center dot s and emplacement durations were between similar to 1 and similar to 29 years, depending on the flow unit and morphological method employed. {C}onsidering the entire volume of emitted lava (4.2 km(3)) and a mean output rate of similar to 1 m(3)/s to similar to 15 m(3)/s, we estimated that the effusive phase that produced the {N}ealtican lava-flow field may have lasted similar to 35 years. {T}his eruption had a considerable impact on pre-{H}ispanic settlements around the volcano, whose population exodus and relocation probably contributed to the rise of important cities in central {M}exico, such as {T}eotihuacan and {C}holula.},
  keywords = {{MEXIQUE} ; {POPOCATEPETL} {VOLCAN}},
  booktitle = {},
  journal = {{G}eological {S}ociety of {A}merican {B}ulletin},
  volume = {11-12},
  numero = {},
  pages = {2745--2766},
  ISSN = {0016-7606},
  year = {2022},
  DOI = {10.1130/b36173.1},
  URL = {https://www.documentation.ird.fr/hor/fdi:010088413},
}