CARATTERISTICHE GEOLOGICHE

Abstract

In this work the authors explain the results of the geologica! researches carried out in the area of Ancona, af­fected by the landslide of December 1982. The stratigraphic succession regarding the area involv­ed in the great landslide of Ancona, is of the plio- pleistecenic period, and is represented by stratified marly clays. The plio-pleistocenic deposits are transgressive on Mid­dle Pliocene and close with deposits of organogen bench in Montagnolo area. The principle and neighbouring area affected by the land­slide have tectonic faults with appeninic direction, and are broken by transeverse faults. The last one limit towards North and South the land­nslide area and are to be considered active. The present geomrphological bond, and mostly its re­cent development is mainly connected with the tectonic structures.