BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA 



VOL. 15, PP. 483-506, PLS. 45-47 NOVEMBER 15, 1904 



LINEAMENTS OF THE ATLANTIC BORDER REGION 



BY WILLIAM HERBERT HOBBS 



(Read before the Society December 31, 1903) 



CONTENTS 



Page 



I ntroduction 484 



Historical 484 



Characteristics of joints and faults 484 



Conclusions from study of southwestern New England 485 



Types of earth lineaments 485 



Projection of lineaments on maps 486 



Drainage system of Connecticut 487 



Scope of investigation 487 



Construction of map 487 



The dominant lineaments 488 



The meridional series 488 



Connecticut line 488 



Hudson-Champlain line 489 



Franconia line 490 



Kennebec, Penobscot, and Saint Johns lines 490 



Meridional fall line 490 



The Northeast southwest series . . 491 



Northern fall line . 491 



Carolina coastline and Southern fall line 492 



Saint Lawrence line 493 



The Northwest-southeast series 494 



Saint Croix line. 494 



Lower Connecticut line 495 



Other lines of the series. 496 



Other lineaments 497 



Orientation of the three principal series 497 



Newark border line 497 



Rias coast and sotmd lines 498 



Mohawk-Deerfield line 499 



Holyoke Hue 499 



Ohio line 500 



Characteristics of the network of lineaments. 500 



Evidence that systems of regional joints extend over wide areas. 500 



Relation of lineaments to the grander features of the earth 503 



LXII— Bull. Geol. Soc. Am., Vol. 15, 1903 (483) 



