Irchel-Schotter (s.s.)

Torna a Irchel-Schotterkomplex

Rappresentazione e statuto

Colore CMYK
(0%,16%,12%,16%)
Colore RGB
R: 215 G: 180 B: 190
Rango
Formazione litostratigrafica
Uso
Unità in uso.
Status
termine informale

Nomenclatura

Deutsch
Irchel-Schotter (s.s.)
Français
Gravier de l'Irchel (s.s.)
Italiano
Ghiaia dell'Irchel (s.s.)
English
Irchel Gravel (s.s.)
Origine del nome

Hügel Irchel nordöstlich Bülach (ZH)

Varianti storiche

Mittlere Irchelschotter (Graf 1993), Irchel-Schotter (Preuss et al. 2011)

Descrizione

Potenza
Rund 40 m.

Gerarchia e successione

Limite superiore

Hasli-Formation, lokal Steig-Schotter.

Età

Geomorfologia
  • Primo Pleistocene
Età alla base
  • Primo Pleistocene

Geografia

Estensione geografica
Hügel Irchel (ZH).

Paleogeografia e tettonica

  • Höhere Deckenschotter
Termini generici
Tipo di origine
  • sedimentaria
Condizioni di formazione

Schüttung in NW Richtung.

Referenze

Revisione
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: The glaciofluvial gravel on top [of the Langacher-Schotter] (‘Irchel-Schotter’) is cut by a channel-like structure in the SE. This channel is filled by younger glaciofluvial gravel (‘Steig-Schotter’) showing a prominent difference in petrography compared to the two older units. This implies that erosion was not a local phenomenon but rather indicates reorganisation of the entire drainage network.

All over Irchel, the two previous units (‘Irchel-Schotter´, ´Steig-Schotter’) are covered by overbank and channel fill deposits of a meandering river system, with a thickness between 2 m and 7 m (‘Hasli-Formation’).

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