Calibrating the Ediacaran-Cambrian transition in the SW Gondwana
DOI:
https://doi.org/10.3989/egeol.43593.573Keywords:
Itapucumi Group, SHRIMP ages, Detrital and volcanic zircon, Nama assemblage, Ediacaran- Cambrian transition, SW GondwanaAbstract
The paleontological, isotopic and geochronological data summarized below support the paleogeographic and temporal correlation between Itapucumi (Paraguay) and Corumbá (Brazil) groups, suggesting a coeval sedimentary evolution of these units in the margins of the Amazon Craton and the Rio Apa Block.
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