Some xenoliths of calc-alkaline material are found in Aguas Calientes lavas, and magma mixing has generated lavas containing andesite inclusions in dacites. One eruption of Aguas Calientes postdates the first centre of Lascar and was originally linked to the Lascar Piedras Grandes eruption, before sampling on the deposits of this eruption indicated a relationship with the Lascar volcano itself. Effusion of lava ceased after the cone was built.
Xenoliths of calc-alkaline material are present in Aguas Calientes lavas, and magma mixing has resulted in dacites containing andesite inclusions. One eruption from Aguas Calientes took place after the initial Lascar centre and was initially linked to the Lascar Piedras Grandes eruption before further sampling showed a connection to the Lascar volcano itself. The lava effusion ceased once the cone had been built.