The flood plain of the Blies near Reinheim is characterized
by a valley widening with
numerous lakes - ancient sand pits. The
valley sides in this area are mainly exposed
to west resp. east resulting
in a favourable micro climate due to high solar radiation
and wind protection. In
the flood plain near Reinheim quaternary sediments of the
Blies outcrop. On the inner as well as on the outer
river bank the A- and B- terraces
are proved. Meanwhile the
Blies incised in its pleistocene deposits and flows in rocks
of the middle trias. At the
base and in the middle of the slopes west of the excavation
area the marls of the middle
Trias (mm) outcrop building spring horizons. In the vicinity
also gypsum and rock salt
occurences are known (SCHNEIDER 1991). Above follows
entrochal limestone (mo1).
Its morphologically hardness results in steep parts of the
upper slope. The flat upland
area is built of ceratite limestone of the middle trias (mo2).