The Bolivian and Peruvian Subandean Fold and Thrust Belt: Structural Complexity Overview and Geochronologic Constraints

Abstract

The Subandean fold and thrust belt of Bolivia and Peru is characterized by strong shortening and a complex structural north-south partitioning, which induced the individualization of sub-basins characterized by different types of structural plays. This north-south structural evolution was controlled by the Paleozoic and Mesozoic heritages and the slab subduction geometry variations. Structural overview of the Subandean zone is presented from serial balanced cross-sections. Geochronologic data are provided by thermochronology and stratigraphic growth strata evidenced in seismic and corroborated by field observation. The results presented in this paper provide a better calibration of the Paleozoic and Mesozoic petroleum systems and new perspectives for future hydrocarbon exploration in this region.

AAPG Datapages/Search and Discovery Article #90326 © 2018 AAPG Latin America & Caribbean Region, Optimizing Exploration and Development in Thrust Belts and Foreland Basins. Santa Cruz de la Sierra, Bolivia, June 6-8, 2018