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Boletín de Ciencias de la Tierra
Print version ISSN 0120-3630
Abstract
GARCIA L., Carolina. PRESENT KNOWLEDGE OF THE SLOPE DEPOSITS OF THE ABURRÁ VALLEY. Bol. cienc. tierra [online]. 2006, n.19, pp.101-112. ISSN 0120-3630.
Surface formations of the Aburra Valley include several successive genetically similar series of extensive fluvial and slope deposits, possibly generated by events of intense tectonic activity. These deposits display a typical stepped structure, in which older deposits are located in the upper part of slopes and the recent ones, sometimes derivated form the older, are located in the lower part of the slope. Although in the last two decades several works emphasize the importance of these deposits in the evolution of the Aburra Valley, few are those with chronological relations sustained in ages obtained by absolute dating which would allow to confirm the relations of the deposits with important orogenic events. The absolut ages until the moment are 3,12 Ma (Rendón et al., in press) for the older deposits and 0,19 Ma (Aristizabal, 2004) to 0,62 (Ortiz, 2002) for the recent deposits of the serie.
Keywords : slope deposits; Valle de Aburrá; chronology.