Abstract
This chapter presents different examples of inversion structures recognized under the Pampa del Tamarugal along the western mountain front of the Central Andes in northern Chile, which were ignored during many years. This chapter begins with a regional-scale perspective of the geological context and the previous interpretations proposed to the region. Then, we detailed the workflow and seismic criterion applied to the identification of the inversion structures in the region. Afterward, we present a detailed description of the seismic and structural interpretation based on the identification of some key stratigraphic and structural elements found both in the field and the seismic data. This allows interpreting the structural styles related to the reverse-reactivation of previous basement-involved normal faults created during the early rifting of the western margin of South America. Finally, we propose a tectonic evolution of the study region, considering the interpretations shown in this chapter.
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