Quart. Journ. Geol. Soc. Yol. L"^ 



\ IN THE DAVOS 



' miles. Heights are expressed in 



//. 



COTSCHNA-AROSA H FOLD 



Cotschna ridge 

 2267 m. 



Radiolarian cherts 

 in red shales 



'Polygenic' breccia 

 Crystalline 6/'ecQ/'a^''N 



Klosters 



Crystalline^ breccia ^"/Z - 



GREY BUNDNER SCHIEFER 

 Lias? Tertiary? 



jS^ie. — The above Me geographical line. Through the fii 

 section runs south-easlhiahorn and Klosters, in an approxiraal^ 



right half of the sectic 

 somewhat more comp 



forms no prominent mountain, such as 

 schna and Parsenn region 



The section is inte 



(1) The gene 



(2) The sugp may not be (with the exception of 



geolo^nd that the peculiar rocks which here c 

 explifphism. 



Tfolds, here brecciated in situ ; (b) the ' ] 

 togettand shales occur between the Verrucanc 

 with idotite-magma through the red schists a 



