Geochemical evolution of the Quaternary Chachimbiro Volcanic Complex (frontal volcanic arc of Ecuador)

The Chachimbiro volcanic complex (CVC) is a composite volcano located in the frontal part of the Ecuadorian Quaternary Arc. null Four periods of activity can be differentiated in Chachimbiro ∼400 ka-long volcanic history, named CH1 (405.7 ± 20.0–298.6 ± 32.9 ka), CH2 (121.75 ± 23.2–36.08 ± 2.8 ka), CH3 (36080 ± 280–22730 ± 120 ybp) and CH4 (5.760 ± 30 ybp) respectively. The magmatic suite ranges in composition from andesites to rhyodacites, and...