View article

The stratigraphic position of the Apennine Numidian quartzarenites has been revised from Eastern Abruzzi to Northern Calabria. Micropaleontological investigations based on nannofossil and planktonicforam analises allowed us to recognize that in the Southern Apennines the Numidian quartzarenites were deposited in a short time-interval corresponding to the upper part of the NN4 zone and possibly to the lower part of the NN5 zone (N8 foraminiferal zone). The Numidian-sand input was preceded and accom-panied by the deposition of calc-alkaline tuffites which recorded in far field an important volcanic activity. In the Apenninic depositional realms, the Numidian-sand