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Branches and 

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Studies in Minor Folds 



By CHARLES E. DECKER 



The author's purpose is to illustrate by diagrams 

 and photographs a series of types of minor folds; 

 to illustrate and study briefly a few minor folds in 

 their relation to major ones; to illustrate a larger 

 number of small folds in the midst of horizontal 

 or gently dipping strata, showing their character- 

 istics, methods of origin, age, and relation to 

 faults; and finally, to connect these minor 

 deformations, in so far as possible, with larger 

 movements, and show their significance, as 

 indicating the presence of compressional stresses 

 in the rocks in the interim between the great 

 periods of deformation and mountain-building. 



The data on which these studies are based have 

 been secured from a narrow area south of Lake 

 Erie, extending from Cleveland across north- 

 eastern Ohio, northwestern Pennsylvania, and 

 into New York as far as Dunkirk. A few folds 

 on Lake Ontario were studied, both in northern 

 New York and southern Canada. A few folds 

 were studied in the folded areas of the Arbuckle 

 and the Wichita Mountains of Oklahoma. 



Cloth; $1.50, postpaid $i.6o 

 The University of Chicago Press 



Chicago ... Illinois 



The Geology of Vancouver and Vicinity 



By EDWARD M. J. BURWASH 



14 half-tones, 10 line drawing^ and 2 colored maps 



/" II A thorough and authoritative survey of the region, made 

 I II more interesting by the remarkable photographs, which 

 ^^ include a profile of the Grouse Mountain spur, the Lions 

 from Mount Brunswick, a view of Red Mountain from Black 

 Tusk Mountain, Mount Garibaldi from the south, a glacial 

 section from a cutting on Keith Road, and others equally inter- 

 esting. One colored map shows the topography of Vancouver 

 range and the other is a geological map of Vancouver and 

 vicinity. 



1 12 pages, paper covers; $1.50, postpaid $1.60 



THE UNIVERSITY OF CHICAGO PRESS 



CHICAGO ILLINOIS 



