Abstract
Geologic interpretation of seismic data along the eastern half of
the CROP 11 deep seismic reflection profile, running across the central
Apennines, indicates that the Adriatic Moho deepens gradually from
34 km in the foreland areas to 47 km beneath the core of the belt.
This deepening is in agreement with local Moho depths estimated from
teleseismic receiver functions at several stations installed along
the CROP 11 profile. On the contrary, DSS (Deep Seismic Soundings)
data image the Moho at shallower depths. The deepening of the Adriatic
Moho illustrated in this paper supports the westward downgoing of
a portion of Adriatic continental crust and is consistent with the
regional gravity anomalies, provided that very high-density rocks
are present above the Moho at the core of the central Apennine belt.
We discuss geophysical and geologic data in the framework of alternative
models of delamination of the Adriatic crust at different depth.
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