Page 7 - 31 antonioli PAG 8-11

Climex Maps - explanatory notes
palaeontological analysis; moreover, eleven
biomarker samples (8 shell fragments, 1 peat
sample, 1 Cerastoderma glaucum valve and 1
fragment of C. caespitosa) were collected for
chronology with 14C AMS dating. The dated
samples were correlated with backshore
deposits and shallow marine environment
Fig.2b Palaeogeographic reconstructions
at 20 ka cal BP for Italy (from Lambeck et
al., 2004).
deposits; the palaeobathimetry of these
samples may be estimated at about +2/-4 m.
Marine shells between -3 and –33.7 m yielded
calibrated ages in the interval 7.4 – 8.6 ka cal et al., 1992,1996, Antonioli & Oliverio 1996).
BP.
5 Volturno Plain. "The Volturno River coastal
plain formed during the Holocene as a complex
of beach-ridges and flat back-barrier
depressions
with lagoonal sedimentation. Lagoonal facies
have been found in a core located at 2.5 km
from the present beach over a depth range of
10 m. Radiocarbon ages of peats found in this
core are given by Barra et al. (1996) and the
calibrated ages span the interval from 4.8 ka at –
3 m to 7.4 ka BP at -8 m " from Lambeck et al.,
2004.
6 Palinuro Promontory.The analyses on serpulids
overgrowths that coverd submerged speleothems
in sea caves at Palinuro promontory allowed to
reconscruct the sea level rise data at Palinuro
promontory during Holocene. The samples were
collected by scuba diving at depths from -18 to -
49 m measured with a digital depth gauge
Speleothems from the Scaletta cave were
sampled at depths between 27 and 48 m and
yielded ages from 8.4 to 10.2 ka cal. BP (Alessio
7 Catania Plain. A stratigraphic and sedimento-
logical study, accompanied by 14C AMS dating,
has been carried out by means of three boreholes
in the most depressed coastal sector of the
Catania Plain, the Pantano di Lentini. The
boreholes showed that clear lagoon deposits,
constituted by dark organic silts, are present only
in the upper 2-3 m. Moreover, 14C AMS dating
on pulmonate gastropod indicated an age not
older than 2.5 ka for these deposits. The
remaining sediments, down to the Lower-Middle
Pleistocene marly clayey substratum reached at
depths variable between -20 and -39 m, are
represented by infralitoral beach deposits
containing rare lagoon levels. The 14C AMS dating
on shell fragments collected at various depths
suggested an Holocene age, between 6.4 and 9.3
ka, for these deposits (Monaco et al., 2004).
8 Sybari Plain. "Archaeological excavations on
the Sybari alluvial plain have led to the
identification of three superimposed levels of
occupancy from the 6th to the 1st century BC: the
ancient Greek town of Sybaris, the Hellenistic
town of Thurium, and the Roman Copia. This
plain forms a graben that runs in an ENE-WSW
direction, bordered by regional fault systems.
The upper part of this depression is filled with ~
400 m of deposits consisting of sands including
fine clay-sands, coarse gravels and peat levels at
various depth. A core from the plain yielded 14C-
based ages in the interval 5.3 to 11.1 ka cal. BP
for peats and marsh deposits from depths of 3 to
55 meters below sea level (Cherubini et al.,
2000)", from Lambeck et al., 2004.
9 North Adriatic. "The northern part of the
Adriatic Sea is characterised by a shallow sea-
bottom morphology (at 30-50 m depth) with
sediments deposited by the Po River in the
immediate offshore area. The low shelf gradient
and the lower sediment input near the central
part of the basin results in significant landward
shifts of depositional environments at times of
sea-level rise. In consequence, successive
backstepping sequences do not completely
overlap. Furthermore, transgressive deposits are
not always covered by younger highstand