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dc.contributor.authorAlfaro, P.-
dc.contributor.authorGibert, Luis-
dc.contributor.authorMoretti, Massimo-
dc.contributor.authorGarcía-Tortosa, Francisco Juan-
dc.contributor.authorSanz de Galdeano, Carlos-
dc.contributor.authorGalindo-Zaldívar, Jesús-
dc.contributor.authorLópez-Garrido, A. C.-
dc.identifier.citationTerra Nova 22(3): 172-179 (2010)es_ES
dc.description8 páginas, 8 figuras.es_ES
dc.description.abstractGiant load-type seismites, uncommon in the geological record, are described in Plio-Pleistocene lacustrine deposits of the Baza Basin (Betic Cordillera, S Iberia). Deformed beds of the marginal lacustrine and distal alluvial facies of the Baza palaeo-lake can be traced continuously for several kilometres. Soft-sediment deformation is represented by load-type structures of large dimensions (pillows around 4 m in width and 2 m in height). Three-dimensional exposures show ellipsoidal pillows separated by fluidized channels without any preferred orientation. The final size of these load-type seismites is strongly influenced by sedimentary factors such as the presence of a reverse density gradient in sediments and the bed thickness. The giant seismites of the Baza basin are located in a region, which is unlikely to have been subjected to high magnitude earthquakes (maximum around 7.0). Therefore, magnitude is not the main factor that controls the size of these load-type structures.es_ES
dc.description.sponsorshipThis research was funded by the projects CGL2007-60535, CGL2005-05337, CGL- 2006-10202 and CGL2009-11096 of the Spanish Ministerio de Ciencia e Innovación, the FECYT and the Fullbright Scholar Program.-
dc.titleThe significance of giant seismites in the Plio-Pleistocene Baza palaeo-lake (S Spain)es_ES
dc.description.peerreviewedPeer reviewedes_ES
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