New York State Museum Bulletffi*^^ 



Entered as second-class matter November 27, igi5, at the Post Office at Albany, New York, 

 under the act of August 24, 1912 



Published monthly by The University of the State of New York 



No. 213, 214 



ALBANY, N. Y. Septemberand October, 1918 



The University of the State of New York 



New York State Museum 



John M. Clarke, Director 



GEOLOGY OF THE SCHROON LAKE 

 QUADRANGLE 



By 

 WILLIAM J. MILLER 



PAGE 



General geographic features 5 



General geologic features and 



publications 7 



Precambrian rocks 10 



Paleozoic rock outliers 62 



PAGE 



Structural geology 71 



Pleistocene geology 83 



Summary of geological history, . . 93 



Mines and quarries 96 



Index 101 



i'SJ/9^3;pr 



Mii7r-Ni8-isoo 



ALBANY 



THE UNIVERSITY OF THE STATE OP NEW YORK 



1919 



