THE 



QUARTERLY JOURNAL 



OF 



THE GEOLOGICAL SOCIETY OF LONDON. 



PROCEEDINGS 



OF 



THE GEOLOGICAL SOCIETY. 



June 17, 1857. 

 [Proceedings continued from page 176.] 



11. On the Geology of the North-east part 0/ Me Dobrutcha. 

 By T. Spratt, Captain R.N., F.R.S., F.G.S. 



Having had an opportunity, during the latter part of last year, of 

 extending my geological inquiries in the eastern part of the Dobrutcha, 

 and of obtaining a better idea of some parts of its character, I am 

 induced to offer a few remarks as a continuation of my former paper 

 on this locality*. 



It is known that the northern extremity of the Dobrutcha is ter- 

 minated by a chain of mountains that obtain an elevation of between 

 1000 and 2000 feet. They consist of highly-inclined limestones, 

 shales, and schistose rocks. But the bold features usually assumed 

 by the description and elevation of rocks of this nature are generally 

 subdued here by their flanks and shoulders being covered by a 

 considerable deposit of arenaceous marls, of reddish, grey, and 

 brown colours. The marls are undoubtedly of a late date ; but their 

 origin I am not able to determine, from the total absence of fossils 

 wherever examined by me. 



In this remark I allude especially to the group of superficial.^ 

 earthy or arenaceous, red and brownish marls of the Steppe, „ 

 separable from the known freshwater marls j for I have recently 

 * See Quart. Journ. Geol. Soc. vol. xiii. p. 77. 

 VOL. XIV. PART I. P 



