362 STRATIGRAPHICAL GEOLOGY. 



From J. K. Eclgerton's, near the south line of Norwich to the river, \vc 

 have the following order of Huronian rocks : Greenish sandy schist ; east 

 of S. Godard's, grit, dipping 50° N. 70° W.; soft green schists ; hard and 

 slaty layers on top of the ridge, vertical, strike N. 30° E.; green schists, 

 78° N. 60° W.; dolomitic seams, vertical, strike N. 5° W.; and, lastly, 

 soft argillitic schists, dip 70° N. 57° W. The last ledge does not reach 

 the railroad, where the hornblende rock makes its appearance, with the 

 inverted westerly dip. 



An interesting section is that from Craft's hill in Lebanon to a little 

 north of White River village or Hartford post-office, as delineated in 

 Fig. 59. 



On the south side of White river, by the Hartford post-office, the clay 

 slates appear in a railroad cut, standing vertical, and full of small faults. 

 This position seems to be the result of enormous lateral pressure. Great 

 disturbances appear in the slates, because, being weaker than the hard 

 Huronian schists adjacent, they yield more easily to the force exerted. 

 The Huronian schists immediately contiguous to the slates are thin- 

 bedded, and dip 70° S. E. On the north side of the river, in a tributary 

 north-south valley, the greenstones properly begin, and extend nearly to 

 the railroad. At the eastern side of the valley the diorites dip 50° E. 5° 

 S., and this position is continuous to the top of the hill overlooking the 

 road to Norwich from White River village. Here the dip of 80° west 

 commences ; and we find narrow hornblendic layers, diorites, sandy grits, 

 and diabases, like those holding fossils. Midway to the road from the 

 hill-top are twenty-five or thirty feet thickness of finely-bedded, white 

 siliceous rocks. Other layers are of green chlorite schists, with white, 

 ragged spots of quartz. These may be twelve hundred feet west of the 

 road. Next come fossiliferous diabase, fine-grained schists, white feld- 

 spathic sandstone, fossiliferous diabase, and diorites. East of the road 

 the strata are similar to those described, there being no established order 

 between the sandstones, diabases, diorites, and siliceous layers. Evidence 

 is afforded of the existence of two anticlinals and a synclinal in this dis- 

 tance of nearly a mile. The whole section, therefore (Fig. 59), would in- 

 dicate five axes, — first, at the east end, an overturn anticlinal ; and lastly, 

 at the west end, a closely pressed anticlinal. Thus the aspect of the 

 Huronian is that of an older underlying formation, the slates at the west 



