«Deckenschotter-Eiszeiten»

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Représentation et statut

Index
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Couleur CMYK
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Couleur RGB
R: 200 G: 255 B: 255
Rang
période glaciaire
Usage
Ce terme est en usage.
Statut
terme informel
SCS note
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SCS date
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Commentaire
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Nomenclature

Allemand
«Deckenschotter-Eiszeiten»
Français
«Périodes glaciaires des Deckenshotter»
Italien
«Periode glaciale delle Deckenschotter»
Anglais
«Deckenschotter Ice Ages»
Origine du nom
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Variantes historiques
Deckenschotter-Eiszeiten = Schweizerische Deckenschotter-Vergletscherungen (Keller & Krayss 2010), Deckenschotter glaciations (Preusser et al. 2011)
Remarques nomenclatoriales
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Synonymie

Synonymes
Non synonymes
Risques de confusion

Description

Description
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Expression géomorphologique
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Epaisseur
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Composants

Lithologies principales
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Minéraux particuliers
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Fossiles principaux
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Hiérarchie et succession

Unité hiérarchiquement supérieure
Unités hiérarchiquement subordonnées
Unités sus-jacentes
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Unités sous-jacentes
Équivalents latéraux
Limite supérieure
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Limite inférieure
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Discussion stratigraphique
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Âge

Âge au sommet
Pléistocène précoce
Note sur le sommet
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Âge à la base
Pléistocène précoce
Note sur la base
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Méthode de datation
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Géographie

Extension géographique
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Région-type
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Localité-type
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Coupe-type
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Coupes de référence
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Point of interest
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Paléogéographie et tectonique

Paléogéographie
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Type de protolithe
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Conditions de formation
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Séquence
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Unité tectonique (resp. catégorie générique)
Glaciostratigraphie
Métamorphisme
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Faciès métamorphique
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Remarque sur le métamorphisme
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Références

Définition
Penck Albrecht, Brückner Eduard (1901): Die Alpen im Eiszeitalter. , (Leipzig)
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

p.285: Early Pleistocene (‘Deckenschotter glaciations’) The oldest Pleistocene deposits of northern Switzerland, usually referred to as ‘Deckenschotter’, mainly consist of (glaciofluvial) gravel, with some intercalated glacial sediments (till) and overbank deposits. The present distribution of these deposits is between the easternmost part of the Jura Mountains (‘Lägern‘), the River Aare, the River Rhine, and Lake Constance (Graf 1993). Lesser remnants of these strata are found to the east of Lake Constance (Graf 2009b) as well as in some parts of northern Central Switzerland (Fig. 2). The remains of ‘Deckenschotter’ are typically found forming the top of table mountains. The term ‘Deckenschotter’ was originally introduced by Penck & Brückner (1901/09) for deposits from Bavaria, and refers to past gravel accumulation on a broad-spread plain at the front of Alpine lowland glaciation. The ‘Deckenschotter’ of northern Switzerland, however, do not represent sheet-like gravel plain deposition on top of Molasse bedrock, but are the fills of several broad channels that are representing the past major drainage network of the northern Swiss Midlands (Graf 1993). ‘Deckenschotter’ deposits are found at two distinct topographic levels, and are therefore subdivided into a higher (‘Höhere Deckenschotter’) and a lower (‘Tiefere Deckenschotter’) unit. Both units represent depositional complexes. The channels of the lower (younger) unit have the same major drainage direction as the higher (older) unit, but are more deeply incised into Jurassic limestone and Molasse bedrock.

Matériel et divers

Utilisations
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