Hardau-Schotter
Back to QuaternaryRepresentation and status
- Color CMYK
- (12%,0%,16%,16%)
- Color RGB
- R: 190 G: 215 B: 180
- Rank
- lithostratigraphic Formation
- Validity
- Unit is in Use
- Status
- informal term
- Status discussion
Nomenclature
- Deutsch
- Hardau-Schotter
- Français
- Gravier de Hardau
- English
- Hardau Gravel
- Origin of the Name
-
Hardau (SH), Schaffhausen
- Historical Variants
- Untere Klettgauschotter, Hardau-Schotter (Graf 2009, Preusser et al. 2011)
Description
- Thickness
- Bis 150 m (Preusser et al. 2011).
Hierarchy and sequence
- Units at roof
Age
- Age at top
-
- Middle Pleistocene
- Age at base
-
- Middle Pleistocene
Palaenography and tectonic
-
- Hochterrasse
- Kind of protolith
-
- sedimentary
- Conditions of formation
- Glazifluviatile Ablagerung
References
- Definition
-
(2011) :
Quaternary glaciation history of northern Switzerland. E&G Quaternary Science Journal 60/2-3, 282-305
The channel of Oberklettgau, with a base at 340 m a.s.l., contains a complex sedimentary fill (Fig. 10). The sequence starts with glaciofluvial sediments (‘Hardau-Schotter’) that reach a thickness of up to 150 m. The gravel originates from the Lake Constance-Rhine Glacier, although the presence of ice in Klettgau is not documented for the time of gravel formation (Graf 2009a). An erosional trough was later incised into the gravel down to a level of 410 m a.s.l. In addition to the erosion along the valley axis, another channel originating from the south incised at the same time. This trough was later filled by glaciofluvial gravel (‘Geisslingen-Schotter’) ...