Early Silurian vs. Late Ordovician glaciation in South America
The San Gabán Diamictite Formation of southern Peru is a lateral equivalent of the Cancaniri Diamictite Formation in Bolivia and the Zapla Diamictite Formation of northern Argentina. New palynomorph biostratigraphy determined the age of the unit as Llandovery and therefore synchronous with the glaci...
Main Authors: | , , , |
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Format: | Conference Object |
Language: | English |
Published: |
2011
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Subjects: | |
Online Access: | http://hdl.handle.net/11104/0202381 |
Summary: | The San Gabán Diamictite Formation of southern Peru is a lateral equivalent of the Cancaniri Diamictite Formation in Bolivia and the Zapla Diamictite Formation of northern Argentina. New palynomorph biostratigraphy determined the age of the unit as Llandovery and therefore synchronous with the glaciomarine record of adjacent intracratonic basins of South America. Early Silurian glaciation in South America supports the small ice-sheet hypothesis and the isotopic evidence for glaciation-related short-term climatic changes in the Early Silurian. |
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