THE GOSHEN SCHISTS OR FLAGS. 179 



Across Hawley we find the same lead-gray, flat flags, g-arnetiferous 

 where micaceous, biotite-spangled where arenaceous, without quartz veins 

 and without staurohte. The hxtter mineral is henceforth absent as one goes 

 across Charlemont and Coleraine, while otherwise the rock continues 

 unchanged. 



UNCONFORMABLE CONTACT ON THE ROCKS BELOW. OUTLIERS IN THE 

 HAWLEY SCHIST. 



At Salmon Falls in Russell, and at E. Clark's in Montgomery, the 

 change from the light sericite-schists to the graphitic garnet-bearing schists 

 is sudden. In Chester the contact is exposed at the falls high up on a 

 branch of Sanderson Brook, \'isible from the road over the mountain. It is 

 just at the north edge of the Granville quadrangle. The brook comes 

 down over the vertical, flat, flaggy beds of the sericite-schist from the 

 west ; and 30 feet above its mouth, at a 2-foot granite dike, the change 

 is sudden to the highly corrugated black schists, very fine-grained and 

 biotitic, but with little spangling. These schists eff"ervesce with acid, 

 and the transition is abrupt. A considerable unconformity is probably 

 present, although the black schists are crushed into apparent conformity 

 with the older flaggy schists. 



The next place where this contact can be convenientlv studied is in 

 the open valley of the Westfield River, 1 ^ miles southeast of Chester, at 

 the end of a blind road which crosses the river and railroad just west of the 

 mouth of Abbott's brook. The Savoy schist is hornblendic just north of 

 E. Smith's house, at the end of the road, then follows the ordinary sericite- 

 schist on the east, and the great development of amphibolite common farther 

 north is wanting The junction begins just west of and runs up a small 

 gully in a walnut grove above and northeast of the house of E. Smith. 

 There is about 3 feet of fine granite at the junction, and for 2 rods east of 

 the junction the Groshen schist is much corrugated and wavy, and nearly 

 horizontal bands of what seems the original bedding run to meet the vertical 

 Savoy schist. The Goshen schist is dark-gray, garnet-bearing, and spangled, 

 and 3 rods east, across the gully, it has the vertical posture and northerly 

 strike common to all the region. 



Across Worthington the boundary is well defined and is well exposed on 

 all the roads leading down to the Middle Branch of Westfield River. Above 



