High-altitude erratics in the Bernese Alps (Switzerland)

Swiss Journal of Geosciences

Table 1 Allochthonous rocks of the Nieder-Simmental and Sieben Hengste sites and their possible provenance

	Sites				Reference collections and exposed units
	WS	RS	SS	CS	SF	NB	AM	VE	P/H	Possible origin of indicator rocks
Metamorphic rocks
Quartz-epidote-schist	×	×				×	×	×
Micaschist	×	×	×	×	×		×	×	×
Greenschist		×	×		×	×		×	×
Gneiss	×	×	×		×	×	×	×	×
Low-grade metamorphic quartzite	×	×	×		×		×	×	×
Low-grade metamorphic calcite-quartzite	×	×	×	×				×	×
Middle-grade metamorphic quartzite	×	×	×			×		×		Pennine Alps (in particular)
Glauconite-sandstone				×	×	×
Calcite-quartz-vein clasts	×	×	×	×		×		×	×
HP-LT-metagabbro	×					×	×	×
HP-LT-metagabbro with Mg-chloritoide	×							×		Zermatt-Saas-Fee zone
Garnet-amphibolite	×	×				×	×	×		AM/Pennine Alps
Amphibolite		×	×				×	×	×
Metaultrabasite	×					×	×	×
Jadeitite	×							×		Pennine Alps
Metaharzburgite	×						×	×		Southern AM/Gotthard massif/Pennine Alps
Glaucophane-schist	×							×		Pennine Alps
Serpentinite	×	×					×	×
Wehrlite			×							Mont Collon mafic complex
Plutonic rocks
Gabbro/diorite		×	×		×	×	×	×	×	Mont Collon mafic complex (only for SS)
Granite	×	×	×		×	×	×	×	×
Habkern granite					×				×
Leucogranite	×	×	×		×	×	×	×	×
Specific sedimentary rocks
Niesen breccia	×							×	×
Black siliceous concretions	×	×	×					×	×

Investigated sediments: WS Wagenmoos sediment, RS Réseau Siebenhengste-Hohgant, SS Stockesee sediment, CS Caves Nieder-Simmental
Reference collections: SF Schlieren flysch-mélange/Subalpine flysch-mélange, NB Napf beds, AM Aar massif, VE Valais glacier erratics in the Swiss Plateau
Exposed units: P Préalpes romandes, H Helvetic nappes in the catchment area of the Aare river
References: Ackermann 1986; Bayer 1982; Beck 1911; Elter et al. 1966; Flück 1973; Reber 1964; Stuijvenberg 1979; Winkler 1983