BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA 

 Vol. 4, pp. 361-370 August 7, 1893 



HEIGHT OF THE BAY OF FUNDY COAST IN THE GLACIAL 



PERIOD RELATIVE TO SEA-LEVEL, AS EVIDENCED BY 



MARINE FOSSILS IN THE BOWLDER-CLAY AT 



SAINT JOHN, NEW BRUNSWICK* 



BY EGBERT CHALMERS 



{Read before the Society December 29, 1892) 

 CONTENTS 



Page 



Locality, Area and Thickness of Bowlder-clay Deposit 361 



Direction of Striae on Rocks 3<>2 



Topography of District North of Bowlder-clay Deposit 362 



The Bowlder-clay 363 



Source of the Materials composing it 363 



Its stratified Portions 363 



Section at the Fern Ledges 363 



Section at Negrotown Point 365 



Fossil marine Shells 366 



Their Occurrence in the Bowlder-clay at Negrotown Point 366 



Their Occurrence in the Bowlder-clay of the Saint Lawrence Valley 366 



Their Occurrence in the Drunilins near Boston 367 



Their Occurrence in the Leda Clay and Saxicava Sands of New Brunswick. 367 



The Height of the Land and the Mode of Deposition of the Bowlder-clay 367 



Oscillations of the Ice-margin 369 



Climatic Conditions during Deposition of the Leda Clay and Saxicava Sands. . 369 



Conclusions 369 



Discussion 370 



Locality, Area and Thickness of the Bowlder-clay Deposit. 



The occurrence of a thick deposit of bowlder-clay on the Bay of Fundy 

 coast just west of Saint John harbor, containing intercalary seams of 



♦ Published by permission of the Director of the Geological Survey of Canada. 

 LIV— Bull. Gj:ul. Sue. Am., Vol. 1, 1892, (361) 



