Guidebook - Ispra

THE APULIA CARBONATE PLATFORM-MARGIN AND SLOPE, LATE JURASSIC TO
EOCENE OF THE MAIELLA MT. AND GARGANO PROMONTORY:
PHYSICAL STRATIGRAPHY AND ARCHITECTURE P18
Figure 3.3.1 - The massive fl ank of the platform (Ripe Rosse Fm) onlapped by pelagic lime mudstones
(Maiolica Fm) (Incoronata).
(Figure3.2.3, 3.2.4, 3.2.5) are spectacularly exposed
along coastal road cuts between Vieste and Mattinata
and in various sea-cliffs along the coast. One of the
most typical (and photographed) slumping occurs in
the Baia delle Zagare cove (Figure3.2.6).
Stop 3.3:
The depositional slope of the Apulia Platform
The slope of the ACP (Upper Jurassic-Lower
Cretaceous) onlapped by the Lower Cretaceous
Maiolica Fm (drowning unconformity) is well
exposed near the town of Mattinata (Figure13).
According to Bosellini and Morsilli (1997), the
age of the platform fl ank carbonates is Tithonian-
Valanginian p.p., whereas the onlapping pelagic
succession (Maiolica) is early Valanginian at
the toe of the slope (Calpionellites Zone) and
progressively younger upward (latest Valanginianearly
Hauterivian; subzone NC4a of Bralower,
1987) (Figure3.3.1). No evidences of impregnation
of authigenic minerals, like phosphate, glauconite,
and Fe-Mn crusts, commonly found associated with
drowning surfaces in other areas of the Tethyan
domain, are present (Föllmi et al., 1994). The
Maiolica interval, close to the unconformity surface,
contains several beds of densely packed isooriented
Figure 3.3.2 - Silicifi ed brachiopod shell
(Peregrinella garganica).
31 - P18
Volume n° 3 - from P14 to P36