200 GEOLOGY OF THE NAERAGANSBTT BASIK 



coarse conglomerates of the great syncline again appear in good exposures. 

 Annawon Rock (if it is not a bowlder) and the conglomerates, certainly in 

 place at this locality, come a little lower in this section. 



Southward there are numerous outcrops of sandstone and conglomerate, 

 until at Swansea Factory the northern edge of the Dighton conglomerate 

 in the type synchne again comes in. The thick coating of drift makes a 

 correlation with the corresponding outcrops on the two sides of the anticline 

 which passes northeasterly across this field well-nigh impossible. East- 

 ward in Dighton fine conglomerates come in below the coarse beds along 

 Muddy Cove Brook. Similar conglomerates crop out east of the Taunton 

 River, and again south of the syncline in Somerset. 



The area southward to the Taunton River is occupied by sandstones 

 and shales, the latter appearing along the river shore. 



Taunton River Valley — ^As a marked exccptiou to the easterly strikes of the 

 beds in this field, an outcrop just east of Judson post-oflSce, on the eastern 

 margin of the Taunton quadrangle, exhibits a north-south strike. This 

 outcrop marks the turn of the strata around the eastern end of the Taunton 

 syncline. The ridge, it is also worthy of note, is parallel to the course of 

 the Taunton River in this section. 



The Taunton River exhibits a marked adjustment to the stratigraphy 

 of this portion of the field, although it is heavily masked by glacial drift. 

 The section of the river from Taunton eastward is along the strike of the 

 soft beds and across the strike of the hard beds. It is for this reason that 

 its east-west reaches are long, its north-south courses short. South of 

 Taunton the same adjustment is less perfectly exhibited. These facts 

 indicate a well-excavated preglacial channel. 



MIDDLEBORO QUADRANGLE. 



But few outcrops of the Carboniferous are exposed within the limits of 

 the Middleboro quadrangle, and it has not been possible to do more than to 

 indicate on the map the area occupied by the Carboniferous formation in 

 general without reference to horizons. The information gleaned from 

 bowlders, while it does not permit the dehneation of the exact distribution 

 of strata, shows that this portion of the field is traversed by beds of con- 

 glomerate, sandstone, and slate resembling those of the Coal Measures, 

 and probably representing the lower portion of that series. 



