Arc Volcanism

Volcanism at the Andean active continental margin

The Central Andes in northern Chile, NW Argentina and Peru expose rocks that formed in changing plate margin settings throughout the Phanerozoic. Previous projects dealt with Mesozoic I-type intrusions and the volcanosedimentary evolution of Paleozoic basin systems (see papers No. 2 to 30). Since 2003, we study explosive differentiated volcanic centres in the extended Jurassic flood lava arc province in northern Chile (La Negra Fm., see Paper No. 46). Another ongoing project in cooperation with the Universidad Católica del Norte is on Pliocene ash deposits in the Coastal Cordillera of northern Chile.