Provenance study of Phanerozoic rocks from the Cordillera Real of Bolivia

U/Pb ages of detrital zircon from two samples Ordovician sediments were determined and, based on similar published data, compared with xenocrystal inheritance Triassic and Oligocene granitoids the Cordillera Real in order to better understand their genetic relationship sources. The results show that sandstone inherited cores are statistically correlated. This correlation suggests assimilation these sedimentary units by felsic melts. Ages ranging 300 2300 Ma recorded zircons. A high peak Cambrian late Neoproterozoic (500-750 Ma) is observed throughout metasedimentary entire belt. Candidates for main sources zircons include: Brasiliano or Pampean belts and/or an “in situ” hidden belt within Central Andes via recycling pre-existing rocks. It also possible lie below modern covers but, at time, formed relief structures supplying recycled material into basins.