Hardau-Schotter

Représentation et statut

Couleur CMYK
(12%,0%,16%,16%)
Couleur RGB
R: 190 G: 215 B: 180
Rang
Formation lithostratigraphique
Usage
Ce terme est en usage.
Status
terme informel
Discussion du statut

Nomenclature

Deutsch
Hardau-Schotter
Français
Gravier de Hardau
English
Hardau Gravel
Origine du nom

Hardau (SH), Schaffhausen

Variantes historiques
Untere Klettgauschotter, Hardau-Schotter (Graf 2009, Preusser et al. 2011)

Description

Épaisseur
Bis 150 m (Preusser et al. 2011).

Hiérarchie et succession

Unités sus-jacentes

Âge

Âge au sommet
  • Pléistocène moyen
Âge à la base
  • Pléistocène moyen

Paléogéographie et tectonique

  • Hochterrasse
Type de protolithe
  • sédimentaire
Conditions de formation
Glazifluviatile Ablagerung

Références

Révision
Preusser Frank, Graf Hans Rudolf, Keller Oskar, Krayss Edgar, Schlüchter Christian (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’) ...
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