664 



GEOLOGY 



ness is found not only in the presence of large bowlders, but in their 

 character and in the matrix in which they are set. Furthermore, 

 the stones have now and then been observed (Midlands and west 

 England) to carry marks which have been thought to be glacial 

 stria3. This origin of the marks, however, has been called into 



Fig. 457. Sketch map of Europe during the later part of the Permian peril >< 1 . 

 The lines indicate areas of marine deposition, the broken lines, aro:i> of 

 lagoon deposits; and the dots, areas of continental (land) deposition. 

 (After De Lapparent.) 



question. The conglomerate is wide-spread, and in some ca 

 contains bowlders which have been transported consi<leral>l 

 distances. 



The Upper Permian. The Upper Permian of western ;m< 

 central Europe (the Zechstein of Germany) is unlike the Lower ii 

 several important respects. It contains much more limestone an 

 dolomite, but neither coal, igneous rock, nor, except at its very bj 



