Schwermineralverteilung und Alter pleistozäner mariner Sedimente in Mittelitalien

Ulrich Radtke & Wolfgang Tillmanns
In the southern Maremma, Alto Lazio, Middle Italy, heavy mineral studies were used to differentiate several types of beachrock and other marine sediments which are attributed to marine terraces of different age. Horizontal and vertical sections are described and it is pointed out, that the oldest terrace shows an absence of typical volcanic minerals; that means, that their age of development must be older than 600,000—700,000 BP, the beginning of the vulsinic volcanism. The Upper...