Un modelo de mapa neotectónico en la región Nor-oriental de la provincia de Valencia (España)

Abstract

We are presenting here a neotectonic map model of the northeastern area of Valencia (Spain). This region has been submited to a distensive tectonic in which it is possible to distinguish several phases from the lower-middle Miocene up to now (Simon, 1984). After the studies done in the area, the last important fracturation phase took place in the early Pleistocene, and was particulary strong in the Náquera, Casinos and Chelva areas. The neotectonic map shown here has been based a two maps: the geological one, in which the Plio-Quaternary, and Quaternary deposits are particularly well detailed, and the geomorphological one. The use of the geomorphological units sequence, together with their geometrical distribution (encasement and/or superposition), as well as the representation of the geomorphological features indicating neotectonics such as anomalous slopes (in excess or defect), talweg rectification, anomalous sediment thickness, etc.; can by the only available way to put the recent movements in a temporal scale, especially in areas in which the materials are azoic and the nature of the lithology is similar. Thanks to the possibility to use colours or alphabetical and/or numerical characters to indicate the last movements of the accidents, this map can be used for sismotectonical hazards.