Buechbrunnen-Schotter
Torna a GlaciostratigrafiaRappresentazione e statuto
- Colore CMYK
- (12%,0%,16%,16%)
- Colore RGB
- R: 190 G: 215 B: 180
- Rango
- Formazione litostratigrafica
- Uso
- Unità in uso.
- Status
- termine informale
Nomenclatura
- Deutsch
- Buechbrunnen-Schotter
- Français
- Gravier de Buechbrunnen
- Italiano
- Ghiaia di Buechbrunnen
- English
- Buechbrunnen Gravel
- Origine del nome
-
Hardau (SH), Schaffhausen
- Varianti storiche
- Obere Klettgauschotter (Graf & Hofmann 2000), Buechbrunnen-Schotter (Graf 2009 S.67)
Descrizione
- Potenza
- ca. 10 m
Gerarchia e successione
- Unità sovrastante
Età
- Geomorfologia
-
- Pleistocene medio
- Età alla base
-
- Pleistocene medio
Geografia
- Regione-tipo
- Klettgau (SH)
Paleogeografia e tettonica
-
- Hochterrasse
- Tipo di origine
-
- sedimentaria
- Condizioni di formazione
- Glazifluviatile Ablagerung.
- Metamorfismo
- non metamorfo
Referenze
- Definizione
-
(2009) :
Stratigraphie von Mittel- und Spätpleistozän in der Nordschweiz. Beitr. Geol. Karte Schweiz (N.F.) 168, 218 Seiten
S.67: Bei dessen Rückzug wurden die eben abgelagerten Sedimente zum Teil erodiert, und im Oberklettgau entstand der ca. 10 m mächtige Buechbrunnen-Schotter («Obere Klettgauschotter» nach GRAF & HOFMANN 2000), mit den charakteristischen Blockhorizonten, die in der Kiesgrube der GU AG (Fig. 17) im Gebiet Buechbrunnen besonders deutlich ausgebildet sind.
- Revisione
-
(2011) :
Quaternary glaciation history of northern Switzerland. E&G Quaternary Science Journal 60/2-3, 282-305
The following phase of sedimentation (Beringen Glacial) is characterised by the direct presence of glaciers in Oberklettgau. The presence of the two branches of Rhine glacier (Lake Constance, Walensee) in the region is evidenced by petrography of the gravel. The ice reached towards the present village of Löhningen and left tills in the marginal areas of Oberklettgau, fluvial sand and gravel down-valley, and fine-grained sediments in smaller side valleys (‘Buechbrunnen-Schotter’ and ‘Benzen-Formation’; Fig. 10). Sedimentary evidence reveals that the glaciation comprises two advances separated by a phase of ice retreat. First results of IRSL dating imply an age of ca. 150 ka for the first ice advance towards the Klettgau (Preusser & Graf 2002; Graf 2009a).
- Pubblicazioni importanti
-
(2015) : Luminescence dating of Middle Pleistocene proglacial deposits from northern Switzerland: methodological aspects and stratigraphical conclusions. Boreas