VARIOLITIC DIABASE OF THE FICnTELGEBIRGE. 



47 



junctions of the diabase and the Devonians are, as a rule, hidden 

 either by dense fir-forest or talus. 



The diabase is bounded on the north-east and south by narrow 

 bands of Devonian and Lower Pahicozoic rocks, including some 

 chloritic schists and phyllites ; these run from S.W. to jS'.E., extend- 

 ing up the valley from Berneck to Metzlersreuth, Zell, and Sparnack. 

 The strike of the rocks is generally parallel to that of the valley, 

 but they have been greatly contorted, and sometimes inverted, by 

 the earth-movements which squeeze them in between the Miinch- 

 berg gneiss plateau on the north, and the granitic and gneissose 

 area of the Fichtelgebirge on the south. 



Prof, von Gumbel's map is here very diagrammatic, and in many 

 cases the lines of the outcrop of the diabase are very different from 

 those on the accompanying sketch-map, which is on a larger scale. 

 The floor of the valley along which runs the path from Berneck to 



Fig. 1. — Slcetch-map showing the Distribution of the Variolitic 

 Diabase^ near Bernech, Fichtelgehirge, Bavaria. 







~v 



ALLUVIUM. 



CHLORmC SC///STS. 





«iii^"^^^- 



X X X X 

 X X X X 



VAfi/OUT/C n/ABASE. 



GNS/SS. 



FAULT. 



FOOTPAT/VS. 



Heinersreuth, the lower parts of the \^'ooded slopes of the south 

 bank of the Oelschnitz opposite Stein, much of the meadow-land 

 south of Meyerhof and of the fields that run up into the Miihlleite 

 are occupied by the shales, grits, and slates of the Devonian, instead 

 of diabase^ as is shown on von Giimbel's map. 



