Valenzuela Heredia, D., Henríquez-Castillo , C., Fuentes-Alburquenque, S. , Calderón Araya, R. , Morales-Verdejo, C. and Cortés , M.E. 2026. THREE-DIMENSIONAL BIOGEOCHEMISTRY OF PERCHLORATE IN ANTARCTICA: ROLES OF BACTERIA, ARCHAEA, AND EUKARYA IN POLAR ECOSYSTEM SUSTAINABILITY. Revista Geográfica de Chile Terra Australis. 62, 2 (Aug. 2026). DOI:https://doi.org/10.23854/07199562.2026622.valenzuela.