292 STRATIGRAPHICAL GEOLOGY. 



passing from Fig. 30 to Fig. 32, which has become completed in Fig. 33, 

 the dip upon both sides of the mountain being essentially at the same 

 angle. 



There is little to add concerning the occurrence of the Lisbon group 

 in Monroe. Our observations have been scanty ; and, so far as mapped, 

 the green schists appear to occupy the whole township. At P. P. Ma- 

 son's the dip is 60° S. 48° E. Somewhat below the middle of the town, 

 at J. Nelson's, there is a broad band of pyritiferous granular quartz, dip- 

 ping 80° S. 70° E. A fourth of a mile south, near G. Lang's, there are 

 green schists, vertical, with the strike N. 5° E. The general character 

 of the Monroe schists is sandy and micaceous, without much of the chlo- 

 ritic aspect. South of Lang's the strike is N. 15° E. At the lower Bel- 

 den opening the dip is 60° N. 40° W.; at the upper it is from 70° to 75° 

 south-easterly, — thus making a very distinct anticlinal. There is a grad- 

 ual slope to Connecticut river from the summit of the ridge through 

 the upper three fourths of the township ; the other part is considerably 

 steeper. 



The western half of Littleton consists mostly of the Lisbon group. 

 This development is characterized by the predominance of chloritic and 

 green schists ; and the cupreous layers are scarce. The Gardner Moun- 

 tain and the Quint Mine ranges pass out of the state into Waterford, Vt.; 

 while the Parker Hill range occupies a large area adjacent to Connecticut 

 river. The Lisbon areas terminate mostly in Littleton, save one which 

 passes through the south-west corner of Dalton on its way into Vermont. 

 Section IX passes through the most important portion of these Huronian 

 bands in Littleton. 



In general, the rocks from J. Bowman's, near Lower Waterford bridge, 

 to W. Redwood's, a mile and three quarters east of the upper bridge, are 

 chloritic, usually perpendicular, with a north-east strike. At Mulliken's 

 saw-mill the green schists are traversed by a trap dyke, and some of the 

 rock is conglomeratic, of the Lyman group. The rocks are similar on a 

 back road from the saw-mill to near the slate quarry. Near the town- 

 house is the boundary between the grayish-green schists and the mix- 

 ture of chlorite and feldspar. Of the former, there may be a width of 

 two miles east of the true chloritic rock. The same outcrops at inter- 

 vals between the town-house and the Wheeler Hill cemetery, where it is 



