**Author details**

Aixa González Ruiz1 \*, Patricia Córdoba Sola<sup>2</sup> and Natalia Moreno Palmerola<sup>2</sup>

\*Address all correspondence to: agonzalez@uct.cl

1 Department of Industrial Processes, Catholic University of Temuco, Temuco, Chile

2 Geosciences Department, IDAEA-CSIC, Barcelona, España
