Early Silurian vs. Late Ordovician glaciation in South America

0367849 - GLÚ 2012 RIV ES eng C - Konferenční příspěvek (zahraniční konf.)
Díaz-Martínez, E. - Vavrdová, Milada - Isaacson, P. E. - Grahn, C. Y.
Early Silurian vs. Late Ordovician glaciation in South America.
Ordovician of the World. Madrid: Cuadernos del Museo Geominero, 2011 - (Gutiérrez-Marco, J.; Rábano, I.; García-Bellido), s. 127-134. Publicationes del Instituto geológico y minero de Espaňa, 14. ISBN 978-84-7840-857-3.
[International Symposium on the Ordovician System /11./. Madrid (ES), 09.05.2011-13.05.2011]
Výzkumný záměr: CEZ:AV0Z30130516
Klíčová slova: glaciation * Gondwana * Llandovery * Silurian * South America
Kód oboru RIV: DB - Geologie a mineralogie

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.
Trvalý link: http://hdl.handle.net/11104/0202381