Scaglia Rossa Lombarda

Darstellung und Status

Index

c8

Farbe CMYK

40 / 0 / 60 / 0

Farbe RGB

R: 160 G: 210 B: 140

Rang

lithostratigraphische Formation

Gebrauch

Element ist in Gebrauch

Status

informeller Begriff

Nomenklatur

Deutsch

Scaglia Rossa Lombarda

Français

Scaglia Rossa Lombarda

Italiano

Scaglia Rossa Lombarda

English

Red Lombardian Scaglia

Historische Varianten

Scaglia Rossa (Vonderschmitt 1940, Venzo 1954, Stockar 2003, Carcano et al. 2007), Rote Scaglia (Vonderschmitt 1941), Red Scaglia (Bitterli 1965), Scaglia rossa (Bichsel & Häring 1981, Oppizzi & Spinedi 2007), Formazione di Sorisole (Bersezio et al. 1990), Scaglia Rossa Lombarda (Bernoulli et al. 2018), Marne e calcareniti rosse

Nomenklatorische Bemerkungen

Corrisponde alla Formazione di Sorisole (Bersezio et al. 1990)

Links

Synonyme

Formazione di Sorisole

Beschreibung

Mächtigkeit

40 m (Carcano et al. 2007)

Komponenten

• Foraminiferen
• Radiolarien

Globigerinen, Radiolarien, Globotruncanen (Gl. appenninica Renz)

Hierarchie und Abfolge

Hangendes

• Gruppo del Flysch Lombardo
• Flysch del Varesotto

Liegendes

• Scaglia Bianca Lombarda

Alter

Alter Top

• Spätes Cénomanien

Bermerkungen zu Top

Rotalipora greenhornensis Morrow = Late Cenomanian

Alter Basis

• Frühes Cénomanien

Geografie

Geographische Verbreitung

Lombardia nord-occidentale e Ticino (Varesotto, Mendrisiotto).

Paläogeografie und Tektonik

• Kreide des Südalpins

Tektonische Einheit (bzw. Überbegriff)

• South Alpine

Herkunftstyp

• sedimentär

Bildungsbedingungen

open-marine (pelagic), quiet environment

Metamorphose

unmetamorph

Referenzen

Erstdefinition

Vonderschmitt Louis (1941) : Bericht über die Exkursion der Schweizerischen Geologischen Gesellschaft in den Süd-Tessin. Eclogae geol. Helv. 33/2 (1940), 205-219

Neubearbeitung

Bichsel Matthias, Häring Markus O. (1981) : Facies evolution of Late Cretaceous flysch in Lombardy (northern Italy). Eclogae geol. Helv. 74/2, 383–420

p.388: In western Lombardy (Varesotto, Brianza, Bergamasco), the Scaglia rossa is restricted to the Cenomanian. In the Varesotto the Scaglia rossa overlies the Scaglia bianca (Lower Cenomanian, Luterbacher 1965) and is followed by the Varesotto Flysch dated as Upper Cenomanian (Luterbacher 1965, Sames 1970). In an abandoned quarry northeast of Gropello (northern Lago di Varese) the Scaglia rossa is well exposed. It mainly consists of knobby weathering red marls. Few cm-thick, dark and light-grey layers are intercalated. The single layers are of great lateral continuity. The carbonate content ranges from 27% to 77%. The carbonate-rich layers display structures of resedimentation in the silty to pelitic material. Sedimentary structures are largely obliterated by burrowing (e.g. Chondrites). The red marls contain a rich planktonic microfauna. The top is dated as Late Cenomanian by Rotalipora greenhornensis Morrow. In the Brianza and the Bergamasco the Scaglia rossa overlies the Sasso della Luna. It is followed by the Scisti neri superiori of Late Cenomanian age (Guillot 1967, Vicente 1966) in the Brianza and is directly overlain by the Sarnico Sandstone of Early Turonian age in the eastern
Bergamasco.