Scaglia Rossa Limestone near Gubbio, Italy

Scaglia Rossa Limestone near Gubbio, Italy

https://virtualexplorer.com.au/article/2010/220/evolution-northern-apennines/stratigraphy.html

https://www.earthmagazine.org/article/travels-geology-jewel-apennines-italys-monti-sibillini-national-park

http://www.geo-social.net/?p=1555

https://usm.maine.edu/sites/default/files/The%20Collaborative%20of%20Global%20and%20Big%20History/Alvarez,%20145%20Gubbio%20review%20Sedgy%202009.pdf

The pelagic rocks of the Umbria-Marche Apennines cover an interval from early in the Jurassic to early in the Miocene. A substantial portion of that record is provided by 

a single 400 m thick formation of 

pink to red 

pelagic limestone 

with a component of marls 

and with chert bands or nodules 

in two intervals. 

This formation is known as the 

Scaglia rossa 

and represents the Turonian to Early Eocene. 

‘Rossa’ refers to the red colour 

 ‘Scaglia’ to the scaly, conchoidal fracture 

of this compact, well-lithified limestone.

Bonarelli (1891) first noted the 

metre-thick interval of anoxic black shale 

between the white limestone of the Cenomanian Scaglia bianca 

and the Turonian base of the pink Scaglia rossa 

(Bernoulli & Jenkyns, 2008; Emeis & Weissert, 2008). 

This interval is now called 

the Bonarelli level 

and is well-exposed in the Bottaccione Gorge, 

adjacent to the little mediaeval city of Gubbio (Fig. 1).

Bonarelli level (OAE 2) at Contessa…

https://pensarecojpiedi.com/2018/06/05/gran-sasso-ditalia-corno-grande-dal-vallone-delle-cornacchie-via-comune-da-prati-di-tivo-o-del-tetto-della-penisola-e-un-ghiacciaio-per-cortile/

GRAN SASSO D'ITALIA; Corno Grande from Vallone delle Cornacchie (via comune from Prati di Tivo), or from the roof of the Peninsula and a glacier for the courtyard

http://www.ilgransasso.it/

http://www.ilgransasso.it/ricettivita/