GEOLOGICAL ROUTE THROUGH ASIA MINOR 



75 

 In 



a second time farther south, interbedded with sandstones 

 both cases the dip is northeast. 



Farther east and up the main valley as far north as Devret the 

 rocks and their arrangement are different. Here there are two 

 bands of a dark tuff, with fragments of vesicular trap, imbedded 

 in sandstone, and the whole dipping to the east. Where we went, 



Fig. 7. — Sketch of a small area near Emirler, just north of Boghaz Koi, showing 

 the relation between limestone and serpentine usual in that district. The hatched 

 areas are limestone; the remainder is probably mostly or entirely serpentine, but 

 largely covered up. 



as shown on the map, it seems to disappear within a short distance 

 under the serpentines. But it probably extends farther to the 

 southeast and east, through the area left white on the map. 



North-northeast of Boghaz Koi, the mixture of serpentine and 

 marble continues half-way to Eyuk, the serpentine dominating 

 for the southern half and disappearing in the northern half. About 

 at the point where the serpentine ceases to appear in any quantity 

 there are several outcrops of denser igneous rocks. The space 

 immediately south of Eyiik is occupied by fine-grained Neocene 

 limestones, containing plant remains in poor condition. A little 



