Geoscience Reference
In-Depth Information
postglacial sea level rise was decelerated, and 3000 years BP standing for the warm
period of the Roman Climate Optimum (RCO). For each of these time slots the sea
interpolated to grids RSL
t
,
t
. These grids are displayed as
isoline maps at the left panel in Fig.
7.5
and show clearly the deceleration in relative
sea level change since the Littorina Transgression onset. Within the maps the zero-
isoline (hinge line) marks the transition between falling sea level in the centre of
the Fennoscandian Shield and rising sea level in its circumjacent belt. According
of 7700, 5000, and 3000 years BP. These scenarios are given at the right panel in
∈ {
7700, 5000, 3000
}
7.5 Vertical Displacement of the Earth's Crust
gauge measurements (rsl curves) in the area of the Baltic Sea, combined with
Kattegat to the Gulf of Gdansk provided by R. Dietrich and A. Richter from
the Technical University Dresden for the western Baltic Sea area. So, the result-
change consists of the glacio-isostatic component and the eustatic (climatically
driven) one. The eustatic component can be regarded constant for the western
arate quantitatively the isostatic field by subtracting a constant from the field
his complete treatment of the eustatic sea level rise in the Baltic Sea during the
last centuries suggested 1.0 mm/year eustatic sea level rise for the western Baltic
Sea during the twentieth century. Based on this assumption we subtracted this
by unloading of Scandinavia due to the melted Weichselian ice sheet is clearly
marked by its centre at the Gulf of Bothnia. The hinge line between the rising
Fennoscandian Shield and its subsiding belt follows at the southern Baltic the
coastline.
In order to get a map in a higher resolution for the southern area we have cor-
rected the gauge data in the southern Baltic by subtracting the eustatic component
and re-interpolated these data to a grid covering the western Baltic Sea. The corre-
which strikes almost coast-parallel WSW in the eastern part of the area bends NW
south of Rügen Island and forms a step south of the Danish Islands. This pattern is
mirroring the generally NW striking tectonic elements close to the SW border of the