Spät- bis postvariszische Sedimente und Vulkanite des Aar-Massivs

Rappresentazione e statuto

Colore CMYK

(11%,0%,17%,29%)

Colore RGB

R: 160 G: 180 B: 150

Rango

Gruppo litostratigrafico

Uso

Unità in uso.

Status

termine informale

Nomenclatura

Deutsch

Spät- bis postvariszische Sedimente und Vulkanite des Aar-Massivs

Français

roches sédimentaires et volcaniques tardi- à postvarisques du massif de l'Aar

English

Late to post-Variscan sedimentary and volcaniclastic rocks of the Aar massif

Varianti storiche

oberpaläozoischen Metasedimente und -vulkanite (Schenker 1987), Maderaner Group (von Raumer et al. 1993a), Oberkarbon = äussere Karbonzone (Frey & Niggli 1971), Late to post-Variscan metasedimentary and volcaniclastic rocks (Berger et al. 2017)

Links

Synonymi

Permo-Karbon des Helvetikums

Gerarchia e successione

Unità di rango superiore

• Kristallines Grundgebirge

Unità di rango inferiore

• Wenden-Zone
• Lötschental–Maderanertal-Zone
• Diechtergletscher–Tscharren-Zone

Unità sovrastante

• Spät- bis postvariszische Intrusiva

Età

Geomorfologia

• Asseliano

Età alla base

• Late Pennsylvanian

Paleogeografia e tettonica

Paleogeografia

placca continentale europea

Termini generici

• Aar

Tipo di origine

• sedimentaria
• vulcanica

Referenze

Revisione

Berger Alfons, Mercolli Ivan, Herwegh Marco, Gnos Edwin (2017) : Geological Map of the Aar Massif, Tavetsch and Gotthard Nappes. Geological Special Map 1:100'000, Explanatory Notes 129

p.42: The peculiar suite of clastic metasedimentary and volcaniclastic rocks essentially of Late Carboniferous age was grouped together (also known as Maderaner Group, OBERHÄNSLI et al. 1988). These rocks occur mainly as thin, steeply dipping bands that are wedged between the different zones of the polycyclic metamorphic basement and therefore represent a fundamental element for the subdivision of the basement of Aar Massif (p. 90 ff., see also SCHENKER 1987, SCHENKER & ABRECHT 1987, OBERHÄNSLI et al.1988).
As these rocks form small, discontinuous bands parallel to the strike of the Aar Massif, the tectonic term “zone” is used here to name units with a coherent spatial distribution, whereas within one zone, the lithostratigraphic term “formation” is used for the rock associations (see Tab. 2). The present subdivision is based mainly on the pioneering work of OBERHÄNSLI et al.(1988). It is important to note that some of these units were described earlier as magmatic dykes.