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1 Dipartimento di Scienze della Terra, Università degli Studi di Napoli Federico II, Largo San Marcellino 10, I-80138 Napoli, Italy lusimone{at}unina.it
2 Dipartimento di Scienze Ambientali, Seconda Università di Napoli, Via Vivaldi 43, I-81100 Caserta, Italy marco.vigliotti{at}unina2.it
The occurrence and variability of the coralline algal (rhodalgal) facies both in active factories and in palimpsest and/or winnowed deposits in the Bay of Naples and the Bay of Pozzuoli is reported. The present-day coralline algal deposits resulted from the complex volcano-tectonic events and biological changes which occurred in the Phlegrean Fields, in particular after the sea-level lowstand at the last glacial maximum regression and the succeeding Holocene transgression.