Iberig-Schotter (s.s.)

Representation and status

Color CMYK

(0%,7%,12%,16%)

Color RGB

R: 215 G: 200 B: 190

Rank

lithostratigraphic Formation

Validity

Unit is in Use

Status

informal term

Nomenclature

Deutsch

Iberig-Schotter (s.s.)

Français

Gravier de l'Iberig (s.s.)

English

Iberig Gravel (s.s.)

Origin of the Name

Hügel Iberig = Ibrig, bei Würenlingen (AG)

Historical Variants

Mittlerer Schotter (Graf 1993, Bitterli-Dreher et al. 2007), Mittlere Iberigschotter, Iberig-Schotter (Preuss et al. 2011)

Hierarchy and sequence

Units at roof

• Bärengraben-Till

Age

Age at top

• Early Pleistocene

Age at base

• Early Pleistocene

Geography

Geographical extent

Hügel Iberig (AG).

Palaenography and tectonic

• Tiefere Deckenschotter

Tectonic unit (resp. main category)

• Tiefere Deckenschotter

Kind of protolith

• sedimentary

References

Definition

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.286: The middle gravel unit (‘Iberig-Schotter’) reveals no petrographic relation to the glacigenic deposits, but the two upper units are again genetically related (‘Bärengraben-Schotter’, ‘Bärengraben-Till’). Interestingly, the uppermost part of ‘Iberig-Schotter’ includes overbank deposits and palaeosols. This indicates, firstly, that glacial deposition was separated by sedimentation during warmer periods, and, secondly, that the fluvial drainage level remained similar during the glacial and non-glacial times of this period.