GEOLOGY OF THE PHILIPSBURG REGION OF 



QUEBEC WITH NOTES ON CORRELATIONS 



WITHIN THE BEEKMANTOWN 



J. H. BRADLEY, JR. 

 University of Chicago 



OUTLINE 

 Introduction 



Structural Relationships in the Philipsburg Series 

 Division A 



Scarcity of fossils 

 Strike Faults and Minor Folds 

 Division B 

 Division C 

 Division D 

 Similarity of Philipsburg and East Shoreham Sections 

 Lower Beekmantown 

 Middle Beekmantown 

 Upper Beekmantown 



Other Exposures of Beekmantown in the Champlain Valley 

 Conclusions 



Dg"TRODUCTION 



The region along the northeastern shore of Lake Champlain, 

 which in this paper will be termed " the Philipsburg region" because 

 the area especially under consideration extends northeast and south- 

 west from the town of Philipsburg, Quebec, has been studied by 

 many geologists, Canadian and American. The rocks of this vicin- 

 ity occupy a stratigraphic position in that zone of uncertainty on 

 the Cambro-Ordovician boundary, which at the present time is an 

 important question of controversy. For this reason they have been 

 studied by the writer with the utmost care, with the hope that 

 more facts might be gained concerning the events which transpired 

 between the deposition of the Potsdam and the Chazy beds in the 

 Champlain Valley. 



Although the rocks of the Philipsburg region may be said to be 

 well known, they are at present far from being well understood. 



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