Acta Zoologica Cracoviensia, 39(1) 1996

Issue:

VOL 39(1) 1996

Keywords:

Villafranchian, early Galerian, magnetostratigraphy, palynology, central Apennines, Italy

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Paleomagnetic calibration of Plio-Pleistocene mammal localities in central Italy

• Danilo TORRE
• Andrea ALBIANELLI
• Adele BERTINI
• Giovanni FICCARELLI
• Federico MASINI
• Giovanni NAPOLEONE

Abstract:

Paleomagnetic analyses have been carried out in the central Apennines. Sites studied include the Upper Valdarno and Colle Curti basins and the Oriolo site on the external margin of the belt. The oldest fossil fauna, belonging to the Triversa faunal unit (early Villafranchian), occurs in the first cycle of Upper Valdarno fluvio-lacustrine sediments, and a Gauss magnetic age, at the Kaena event, is assigned to it. The Matassino and Tasso local faunas (late Villafranchian) belong to the second Upper Valdarno sedimentary cycle and fit the upper short reversal of the Olduvai subchron and the lowermost part of the next magnetic chron, respectively. The assemblage from the Colie Curti basin is of earliest Galerian age and can be located to the beginning of the Jaramillo event. Palynological analyses have been carried out in both areas. The sediments from which the fauna of the Oriolo section comes cross either the Matuyama-Jaramillo or the Matuyama-Brunhes magnetic boundary.