BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA 



VOL. 25, PP. 219-242, PLS. 10-11 JUNE 29, 1914 



PLEISTOCENE MARINE SUBMERGENCE OF THE CON- 

 NECTICUT AND HUDSON VALLEYS^ 



BY HERMAN L. FAIRCHILD 



{Presented before the Society December 31, 1913) • 



CONTENTS 



Page 



Introduction 220 



Historical 220 



Views of Edward Hitchcock and C. H. Hitchcock 220 



Work of James D. Dana 221 



Work of Warren Upham 222 



Work of B. K. Emerson 224 



The river theory ; difficulties and inconsistencies 225 



The upper and the lower valley 22.5 



Deltas 226 



Terraces 227 



Occurrence 227 



Discordance 227 



Terraces in the Hudson-Ohamplain Valley 228 



Origin 229 



Detritus 229 



Character 229 



Amount. 230 



Disposition 231 



Lower series of plains 231 



Meanders ; ox-bows 232 



Kettles 232 



Marine submergence 233 



Theoretic plane 233 



Connecticut Valley references 235 



Hudson-Champlain Valley references 235 



Comparison of data 238 



Phenomena of the summit level 239 



Glacial deltas 241 



Features of the lower levels 241 



Absence of marine fossils 242 



1 Manuscript received by the Secretary of the Society December 31, 1913. 

 Published by permission of the Director of Science, Department of Education, New 

 York State. 



(219) 



