12 research outputs found
U/Th dating of a Cladocora caespitosa from Capo S. Marco marine Quaternary deposits (Sardinia, Italy)
""A whole specimen, not reworked and well preserved of Cladocora caespitosa has been found within the marine Quaternary. deposits, outcropping along the eastern coast of the Capo San Marco Promontory. The U\\\/Th dating of this sample has provided a minimum. age of 70 ± 4 ka B.P. This dating allows to state that these marine deposits, containing the coral, are not Holocene in age."
Landscape evolution around Minturnae
The Garigliano Plain, located between Latium and Campania,
has a surface of 240 km2 and is an coastal/delta plain that filled
up a graben generated by some anti-Appennine faults in the early
Pleistocene. The same faults originated the uplift of the mesozoic
carbonate massifs of Monti Aurunci (north-west) and Monte
Massico (south-east) , while, eastward is present the
Roccamonfina pleistocenic volcanic district. The fluvial
discharge gradually filled up part of the graben and during the
Tyrrhenian time shoreline was characterized by beach ridges that
closed a wide bay with lagoons and marshes. During the
following glacial phase, the sea level fell to about 120 m under
the present one, and the Garigliano river locally eroded the
ancient beach ridge. After the last glacial maximum the sea level
rose approaching the present sea level about 6000 B.P. In this
period new beach-dune ridges developed near the new mouth of
the river and along the coast, and the area between the new and
the old dunes was characterized by lagoons and marshes. During
the last 6000 years a wave dominated delta developed at the
Garigliano mouth.
At present the Garigliano delta plain (Fig. 1) is characterized,
from the sea to landward, by an holocenic strand plain, by low
and wet areas and by the Eutirrenian dune ridges, that separates
the delta plain from the alluvial one (ABATE et alii, 1998).
Remains of the colony of Minturnae are present on the
Eutyrrhenian dune ridges at the inner margin of the low area
present on right side of the Garigliano distributary. The ancient
literature describes the landscape during Roman times indicating
that the city was at the edge of a lake created by the river. But
what was the real nature of the area between the shoreline and the
city? There was a lagoon with an harbor? Which may have been
the evolution of the area before, during and after the life of the
Roman colony of Minturnae