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in agreement with a lagoonal index point placing the RSL at The younger intercalated index point suggests RSL was still at
−1.0±1.1 m at ~1.9 ka BP. Younger records indicate RSL has been with- −2.5±0.7 m at ~0.8 ka BP.
in ~-0.5 of modern MSL during the last ~1.5 ka BP.
5.19. Mid-eastern Adriatic Sea (#19)
5.18. Northwestern Adriatic Sea (#18)
The RSL history of the mid-western Adriatic Sea is restricted to the
The database for the northwestern Adriatic Sea is composed of 40 last ~2.6 ka BP. The database is composed of 23 index points and 1 lim-
index points and 9 limiting points. Data derive from cores collected on iting point. Data come from Lythophyllum byssoides samples and archae-
the southern part of the Po Delta, near Comacchio and on the Romagna ological surveys performed on the islands of Vis and Bisevo in Croatia
coastal plain (Fig. 10,#18). (Fig. 11, #19). The oldest index point places the RSL at -1.5±0.3 m at
RSL is well constrained in the early to mid Holocene. By contrast, ~2.6 ka BP. One archaeological index point indicates that RSL rose to
few data are available for the late Holocene. The oldest index points -1.1±0.3 m at ~1.9 ka BP. Multiple index points place the RSL at
place the RSL at −53.0±0.9 m at ~12.9 ka BP. A suite of index points −0.7±0.3 m between ~1.4 and ~1.1 ka BP and at -0.3±0.3 m between
indicate that RSL rose to ~−43.0 m at ~12.2 ka BP. Younger data ~0.6 and ~0.2 ka BP.
show scatter, most likely related to the variability in subsidence
rates driven by the sediment compaction. However, a suite of basal 5.20. Mid-western Adriatic Sea (#20)
index points indicates a rapid rise in RSL in the remaining part of
the early Holocene. RSL was at -23.3±0.8 m at ~10 ka BP, at The RSL history for the mid-western Adriatic Sea (Fig. 11, #20) is
-20.0±0.8 m at ~9.2 ka BP, and at −15.1±1.5 m at ~8.2 ka BP. composed of 3 index points and 3 limiting points from the coastal
Mid-Holocene index points indicate a continuous rise in RSL that, plain of Pescara and the lower Sangro river valley. At ~10.4 ka BP, RSL
at ~7.1 ka BP and at ~6.0 ka BP, was at -8.3±1.5 m and at was lower than −18.6 m. The oldest intercalated index point places
−7.6±0.8 m, respectively. Between 5 and 4.5 ka BP, limiting points the RSL at -11±0.6 m at ~7.7 ka BP. RSL rose to −7.4±1.1 m at
constrain the RSL below −4.1 and above -4.6 m. There is a lack of ~7.7 ka BP. A lack of index points did not allow us to properly assess
data-points between 4.5 and 1.8 ka BP. Younger basal index points the RSL in the last ~7.5 ka BP. The youngest limiting point indicates
indicate a RSL stillstand at ~−2.8 m between ~1.7 and ~1.2 ka BP. that RSL was above -3 m ~2.5 ka BP.

Fig. 11. RSL history in mid-eastern Adriatic Sea (#19), mid-western Adriatic Sea (#20), northern Apulia (#21) and southern Apulia (#22). Index points (boxes) are plotted as calibrated age
against change in sea level relative to the present. Limiting points are plotted as terrestrial or marine horizontal lines. Dimensions of boxes and lines for each point based on 2s elevation
and age errors. The relative sea-level data are compared to a prediction (red line with minimum and maximum errors) from the SELEN model (see Section 4). Red dots represent the
approximate location of RSL data-points. Vi, Vis Island; Bs, Bisevo Island. Ps, Pescara coastal plain; Sg, Sangro coastal plain; Bt, Battaglia lake; Mf, Gulf of Manfredonia; Fr, Frattarolo
lagoon. Eg, Egnazia; Al, Alimini piccolo lake.