BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA 

 Vol. 34, pp. 253-262 JUNE 30, 1923 



CEOSS-SECTION OF THE APPALACHIANS IN SOUTHEEN 



NEW ENGLAND ^ 



BY J. B. WOODWORTH 



{Read before the Society December 28, 1922) 



CONTENTS 



Page 



Introduction -53 



Western, central, and eastern sections 254 



The western section 25-t 



The eastern section 255 



The Worcester district 255 



The Boston area 255 



The Narragansett area 255 



Plan of the sections as a whole 256 



General statement 256 



Lost land off the coast 257 



The central region 259 



The Triassic normal fault blocks 260 



Summary 261 



Inteoduction 



The time has not yet arrived for the construction of a determined geo- 

 logical cross-section of southern New England from the Hudson River 

 on the west to the sea on the east coast of Massachusetts. Partial sections 

 have been published for the western part of Massachusetts, including the 

 Triassic area of the Connecticut Valley ; detailed local sections have been 

 made by Perry about Worcester, Massachusetts, and detached sections 

 have been put forth to illustrate the structure of the Boston and Narra- 

 gansett areas, in eastern Massachusetts. Pumpelly, Wolff, and Dale have 

 given a section of Greylock Mountain. 



Professor Emerson, in his latest map of Massachusetts, refrained from 

 publishing a cross-section of the State, probably because of the difficulty 



1 Manuscript received by the Secretary of the Society May 26, 1923. 

 This paper is one of a series composing a "Symposium on the structure and history 

 of mountains and the causes of their development." 



(253) 



