Volcaniclastic sediments in the Tyrrhenian Basin

Abstract

Deposits directly related to volcanic events include tephra fall, debris flow, and some volcaniclastic turbidites. The latter are generated from reworking of tephra fall and from pyroclastic gravity flows that entered the sea at the time of (primary), or closely following (epiclastic), eruption. These turbidites occur throughout the basin, are glass-rich, and are most common in the central and southeastern portions of the basin. Volcanic sands and other volcaniclastic turbidites represent deposits of more extensively reworked pyroclastics. Heterogeneous volcanic glass and mineral population, abundant detrital crystals and, occasionally, high clay component attest to the secondary (epiclastic) origin of these deposits. -from Authors