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New York State Museum Bulletin 



Entered as second-class matter November 27; 1915. at the Post OflBce at Albany, N. Y., 

 under the act of August 24, 1912 



Published monthly by The University of the State of New York 



Nos. 209, 210 



ALBANY, N. Y. 



May- June 191 8 



The University of the State of New York 

 New York State Museum 



John M. Clarke, Director 



PLEISTOCENE MARINE SUBMERGENCE OF THE 



HUDSON, CHAMPLAIN AND ST LAWRENCE 



VALLEYS 



BY 

 HERMAN L. FAIRCHILD 



PAGE 



Introduction 5 



Absence of lakes in the Hudson- 



Champlain valley 7 



Evidence of ocean-level waters ... 9 



1 Character of the valley deposits 9 



2 Summit shore phenomena 10 



3 Differential uplift of the marine 

 shore line 11 



4 Evidence of uplift from Lake 

 Iroquois 12 



5 Evidence from the Connecticut 

 valley and Long Island 13 



6 Postglacial submergence of New . 

 England and Canada 13 



7 Testimony of former students . 14 

 Absence of marine life in the Hud- 

 son valley 16 



Absence of beaches in the Staten 

 Islandregion 17 



PAGE 



Explanation of maps and diagrams, 



plates i-i I 20 



Deformation and altitudes in the 

 Ontario basin ; tabulation of data, 



plate 12 26 



Description of the, shore features. . 29 



Long Island 29 



Staten Island district 30 



Hudson valley 30 



Champlain valley .' 42 



The northern salient. Covey 



Hill; plate 5 48 



St Lawrence valley 57 



Ontario basin .....' 61 



Summary 63 



Bibliography 65 



Index 75 



Mii6r-Ni8-iSOO 



ALBANY 



THE UNIVERSITY OF THE STATE OF NEW YORK 



I919 



