Glaciations in South America

DANIEL G. POIRÉ; MARIA JULIA ARROUY; LUCÍA GÓMEZ PERAL

Geology of Southwest Gondwana

Springer Nature

Año: 2018; p. 527 - 541

Neoproterozoic successions in South America are recorded in many areas of Brazil, Paraguay, Bolivia, Uruguay and Argentina. Some of these units show glaciogenic formations as those represented in the Puga and Serra Azul formations in the Northern Paraguay Belt (Brazil) in agreement with their accumulation in a ?Snowball Earth? context. However, in other cases, tillites or other glaciomarine deposits are absent, which may indicate a far position (tropical) regarding the ice cap, as occurs in the Tandilia System (Argentina) related to a Phantom glacial context.