New York State Education Department 



New York State Museum 



John M. Clarke Director 



Bulletin 83 



GEOLOGY 7 



PLEISTOCENE GEOLOGY 



OF 



MOOERS QUADRANGLE 



BEING A PORTION OF CLINTON COUNTY, INCLUDING PARTS OF THE 

 TOWNS OF MOOERS, CHA M PLAIN, ALTONA, CHAZY, DANNEMORA, 

 AND DEE K M A N TOW N N. Y. 



PREFACE 



In 1000 Prof. J. B. Woodworth, of Harvard University, was 

 requested by my predecessor in office, Dr F. J. H. Merrill, to take 

 up a study of the problems of Pleistocene submergence in the 

 Hudson river valley. As a first step, a careful detailed survey 

 was made of the Hempstead and Oyster Bay quadrangles, the 

 results of which were published in Bulletin 48 of the New York 

 State Museum; then an extended reconnaissance of the valleys of 

 the Hudson river and Lake Champlain was undertaken for the 

 purpose of determining the nature and extent of the evidences of 

 marine transgression, this reconnaissance being extended as far 

 north as Montreal with the purpose of correlating the marine 

 beaches there with those which had been recognized in Essex 

 county. This reconnaissance in considerable detail was continued 

 through the seasons of 1901 and 1902, after which it became evi- 

 dent that it was important to make a complete survey of some 

 specific area where there was an abundance of phenomena bearing 

 on the matter under investigation. Accordingly, during the field 

 season of 1903, a complete study was made of the area of the 

 Mooers quadrangle situated in northern Clinton county on the 

 Canadian border. The detailed results of this work, illustrated 

 by a geologic map. are given in the following bulletin. 



John M. Clarke 

 • State Geologist 



