Imaging a magma plumbing system from MASH zone to magma reservoir

- Seismic imaging of a lithospheric-scale magma plumbing system.
- 3 low velocity bodies in the mid-crust beneath the active volcanic arc and backarc.
- The mid-crustal magma reservoir beneath the Cerro Galan Caldera contains ∼22% melt.
- Slow upper mantle velocities are indicative of a MASH zone with ∼4-9% melt.
- A large MASH zone underlies the southern Puna Plateau as a result of delamination.