498 



W. H. HOBBS — LINEAMENTS OF ATLANTIC BOBBER REGION 



eastern New York, rather clearly indicated by the boundaries of Newark 

 areas and of the Kent-Cornwall core of gneiss, which lies between them. 

 This line bears about 30 degrees east of the meridian and forms the north- 

 western border of the New York- Virginia area of Newark for a distance 

 of some 30 miles, where it is recognized by Darton* as a fault boundary. 

 It likewise forms a part of the border of the Connecticut valley Newark, 

 and about half way between these areas it follows the gorge of the 

 Housa tonic river along the border of Stockbridge dolomite with gneiss. 



q" a"l 



tf b c 



IZ XL' i Z' M M' N~ 



Figure 3. — River Map of a Part of Western Massachusetts. 



The dominant lines of the local network are indicated, as are the boundaries of the Newark 

 system, by the stippled area, and the basalts of that system by the black. 



Mas coast and sound lines. — It has already been pointed out by Emer- 

 son that the southern shore of New England is a Rias coast, explained 

 by the depression of a crustal block to the southward of the coast. 

 From inspection of the map (plate 45) it will be noticed that this coast 

 is, as regards its general trend, remarkably regular, and its direction is 

 continued westward in New Jersey and Pennsylvania parallel to the 

 border of the large Newark area in that vicinity. That border itself 



* New York Folio, U. S. Geol. Survey, p. 6. 



