Browsing by Autor "Eduardo Queiroz Alves"

Filter results by typing the first few letters
Now showing 1 - 3 of 3
  • Thumbnail Image
    Item type: Item ,
    Corrigendum to “Pre-hispanic wetland irrigation and metallurgy in the South Andean Altiplano (Intersalar Region, Bolivia, XIVth and XVth century CE)” [Quat. Sci. Reviews 338 (2024) 108826]
    (Elsevier BV, 2025) Stéphane Guédron; Clément Roy; Géraldine Sarret; Julie Tolu; Marie‐Pierre Ledru; Sylvain Campillo; Sarah Bureau; Anne‐Lise Develle; Charline Guiguet-Covex; Eduardo Queiroz Alves
  • Thumbnail Image
    Item type: Item ,
    Holocene variations in Lake Titicaca water level and their implications for sociopolitical developments in the central Andes
    (National Academy of Sciences, 2023) Stéphane Guédron; Christophe Delaere; Sherilyn C. Fritz; Julie Tolu; Pierre Sabatier; Anne-Lise Devel; Carlos Heredia; Claire Vérin; Eduardo Queiroz Alves; Paul A. Baker
    Holocene climate in the high tropical Andes was characterized by both gradual and abrupt changes, which disrupted the hydrological cycle and impacted landscapes and societies. High-resolution paleoenvironmental records are essential to contextualize archaeological data and to evaluate the sociopolitical response of ancient societies to environmental variability. Middle-to-Late Holocene water levels in Lake Titicaca were reevaluated through a transfer function model based on measurements of organic carbon stable isotopes, combined with high-resolution profiles of other geochemical variables and paleoshoreline indicators. Our reconstruction indicates that following a prolonged low stand during the Middle Holocene (4000 to 2400 BCE), lake level rose rapidly ~15 m by 1800 BCE, and then increased another 3 to 6 m in a series of steps, attaining the highest values after ~1600 CE. The largest lake-level increases coincided with major sociopolitical changes reported by archaeologists. In particular, at the end of the Formative Period (500 CE), a major lake-level rise inundated large shoreline areas and forced populations to migrate to higher elevation, likely contributing to the emergence of the Tiwanaku culture.
  • Thumbnail Image
    Item type: Item ,
    Pre-hispanic wetland irrigation and metallurgy in the South Andean Altiplano (Intersalar Region, Bolivia, XIVth and XVth century CE)
    (Elsevier BV, 2024) Stéphane Guédron; Clément Roy; Géraldine Sarret; Julie Tolu; Marie‐Pierre Ledru; Sylvain Campillo; Sarah Bureau; Anne‐Lise Develle; Charline Guiguet-Covex; Eduardo Queiroz Alves