Cartografía 3D de depósitos de lahares primarios en el flanco N del Volcán Cotopaxi : cartografía 3D de depósitos de lahares primarios en el flanco N del Volcán Cotopaxi.

Abstract

The Cotopaxi volcano is an active volcano located in the province of Cotopaxi, Ecuador, near the city of Latacunga. The Cotopaxi volcano has a large coverage of glaciers, which have generated enormous primary lahars during their eruptions, which have devastated towns and human lives, as was the case in its last major eruption on June 26, 1877. It is important to highlight this lahar. produced in this eruption because it is the source of study in this work. Starting from the study of the lahar in 1877 in the Jatabamba and Gualpaloma streams located on the northern flank of the volcano, a GPR was used to study the subsoil of the lahar and find its basal contact. Subsequently, maps were made with the thicknesses in different profiles and from these thickness maps two interpolations were prepared (TIN and simple Kriging or SK), in order to perform a 3D cartography and thus observe the differences or similarities between the interpolations. Based on these data obtained, it was also known the maximum thicknesses reached by the lahar in each of the streams, and thus get closer to a real model of how powerful the lahar of 1877 was.