000070590 001__ 70590
000070590 005__ 20200221144349.0
000070590 0247_ $$2doi$$a10.1016/j.sedgeo.2016.05.009
000070590 0248_ $$2sideral$$a97053
000070590 037__ $$aART-2016-97053
000070590 041__ $$aeng
000070590 100__ $$0(orcid)0000-0002-9130-117X$$aLiesa, C. L.$$uUniversidad de Zaragoza
000070590 245__ $$aFacies control on seismites in an alluvial–aeolian system: the Pliocene dunefield of the Teruel half-graben basin (eastern Spain)
000070590 260__ $$c2016
000070590 5060_ $$aAccess copy available to the general public$$fUnrestricted
000070590 5203_ $$aThe recognition of seismically induced soft-sediment deformation structures (SSDS) in sedimentary successions characterized by different facies, and hence by different rheology, is challenging. This is the case for high porosity and high permeability aeolian facies interbedded with muddy wet interdune deposits and alluvial conglomerates and sandstones. Several types of SSDS have been studied in two exposures of the Upper Pliocene (2.9–2.6 Ma) sediments of a fault-bounded intracontinental aeolian dune field in the Teruel Basin (Iberian Chain, eastern Spain). Among SSDS, load and fluid-escape structures, apart from several animal tracks, have been recognized. Those structures show an irregular distribution through the studied stratigraphic sections, being scarce in homogenous aeolian sands and frequent in water-related facies. A detailed study of the distribution and geometry of SSDS and their relationships with respect to the stratigraphic architecture and facies has allowed a critical discrimination of trigger mechanisms, i.e. biological or physical overloading vs. earthquakes. The seismically induced structures are concentrated into seven deformed beds, showing an uneven lateral distribution and geometry closely controlled by the hosting sedimentary facies and their rheology. These seismites resulted from liquefaction during moderate earthquakes (estimated magnitude from 5.0 to 6.8). The most probable seismogenic source was the Sierra del Pobo normal fault zone, located 2 km to the East. Results show how an appropriate recognition of sedimentary facies is crucial to understand the lateral variability of seismites in sedimentary environments characterized by sharp facies changes.
000070590 536__ $$9info:eu-repo/grantAgreement/ES/MINECO/CGL2011-30153-C02-02$$9info:eu-repo/grantAgreement/ES/MINECO/CGL2012-35662
000070590 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000070590 590__ $$a2.373$$b2016
000070590 591__ $$aGEOLOGY$$b10 / 47 = 0.213$$c2016$$dQ1$$eT1
000070590 592__ $$a1.129$$b2016
000070590 593__ $$aStratigraphy$$c2016$$dQ1
000070590 593__ $$aGeology$$c2016$$dQ1
000070590 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000070590 700__ $$aRodríguez-López, J. P.
000070590 700__ $$0(orcid)0000-0003-0900-1440$$aEzquerro, L.
000070590 700__ $$aAlfaro, P.
000070590 700__ $$aRodríguez-Pascua, M. Á.
000070590 700__ $$aLafuente, P.
000070590 700__ $$0(orcid)0000-0001-5091-9398$$aArlegui, L.$$uUniversidad de Zaragoza
000070590 700__ $$0(orcid)0000-0003-1412-5245$$aSimón, J. L.$$uUniversidad de Zaragoza
000070590 7102_ $$12000$$2428$$aUniversidad de Zaragoza$$bDpto. Ciencias de la Tierra$$cÁrea Geodinámica Interna
000070590 773__ $$g344 (2016), 237-252$$pSediment. geol.$$tSedimentary Geology$$x0037-0738
000070590 8564_ $$s1347866$$uhttps://zaguan.unizar.es/record/70590/files/texto_completo.pdf$$yPostprint
000070590 8564_ $$s9149$$uhttps://zaguan.unizar.es/record/70590/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint
000070590 909CO $$ooai:zaguan.unizar.es:70590$$particulos$$pdriver
000070590 951__ $$a2020-02-21-13:54:18
000070590 980__ $$aARTICLE