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The Paleocene volcanism is characterized by [[trachyandesite]] and [[trachybasalt]], whic ...son|2010|p=34}} The Eocene volcanic episode appears to be unrelated to the Paleocene one and gave rise to [[ore]] deposits.{{sfn|Cornejo|Tosdal|Mpodozis|Tomlins ...

...eous]], it is a large caldera. Post-collapse activity generated subsidiary calderas inside the older main caldera. ...caldera partly overlaps the Carrizalillo caldera margin. These subsidiary calderas have left lava conduits, [[lacustrine]] and intrusive structures and other ...

...mulated in the backarc. Volcanic activity was intense in the Cretaceous, [[Paleocene]] and [[Eocene]]. The volcanic arc that built up during the period overthru ...anism shifted northeastward in the [[Quaternary]]. In the [[Pleistocene]], calderas ejected huge quantities of silica-rich ash, filling the Valle Central basin ...

...rst3=César|title=Predicted path for hotspot tracks off South America since Paleocene times: Tectonic implications of ridge-trench collision along the Andean mar ...