/ 



7- 



Education Department Bulletin 



Published monthly by the University of the State of New York 



Entered at the postoffice at Albany, N. Y. as second-class matter 





NO. 423 



ALBANY, N. Y. 



APRIL 1908 



New York State Museum 



John M. Clarke, Director 

 Museum bulletin 119 



GEOLOGY OF THE ADIRONDACK MAGNETIC IRON 



ORES 



BY 



DAVID H. NEWLAND 



WITH A REPORT ON THE 

 MINEVILLE-PORT HENRY MINE GROUP 



BY 



JAMES F. KEMP 



PAGE 



Introduction 5 



Part I Sketch of the geography 

 and topography of the Ad- 



irondacks 8 



General geology 10 



Part II Nontitaniferous magne- 

 tites 23 



General relations and distri- 

 bution... 23 



Character of the ores 24 



Shape of the deposits 26 



Associated rocks. 27 



Origin of the magnetites ... 30 

 Mining and milling in the 



Adirondacks 33 



Statistics of ore production . . 35 

 The Mineville-Port Henry mine 



group 57 



Minerva mine 89 



Arnold hill and Palmer hill 



mine group 90 



Lyon Mountain mines 105 



PAGE 



Part II {continued) 



Mines in the Saranac valley. . . 124 



St Lawrence county mines 128 



Salisbury mine, Herkimer 



county 142- 



Part III Titaniferous magnetites 146 



Distribution of the ores 146 



General geological relations 



and origin of the deposits.. 147 

 Shape of the ore bodies. ... 150 

 Mineralogy of the magnetites 150 

 Commercial utilization of the 



titaniferous ores 153 



Lake Sanford deposits 155- 



Moose mountain deposits 164 



Split Rock mine 184 



Lincoln pond mine 166 



Little pond mines 167 



Port Leyden mine 168 



Other titaniferous deposits 169' 



Bibliography 171 



Index 173. 



Mi9ir-D7-2ooo 



ALBANY 



UNIVERSITY OF THE STATE OF NEW YORK 

 1908 



XO\2,3o 



