UN "DEBRIS FLOW" NELLE MARNE AD ORBULINA DEL BACINO DI TAGLIACOZZO: UN SEDIMENTO DI BASE DI SCARPATA?

Abstract

Mineralogical and sedimentological features of con­glomeratic bed, founded in the "minor basin" ofTagliacozzo, are described in this paper. The conglomeratic bed have been displaced in the emipelagic clay, by a debrisflow flowing, into the basin, from NW to SE. This bed is a carbonatic elements of the Calcari a Briozoi e Litotamni Formation; extrabacinal clasts, probably deriving from a fragment ofThirrhenic Alpine Chaine (ALVAREZ, 1976), are characterized by fragments of metamorphic, volcanic and sedimentary rocks. The depositional environment of the conglomeratic bed and emipelagic clay is porbably the base of continental slope.