REPORT OF THE STATE PALEONTOLOGIST 1902 1073 



('astern face of the fault block is mainly a steep cliff, with 

 the contact between the Manlius and Coeymans part way down 

 the cliff. The Manlius is here much jointed, with vertical joints 

 which on weathering give the aspect of vertical bedding. 

 Shortly before reaching the bend in the wood road, where it 

 leads off to the Becraft quarries, a sink hole of moderate depth 

 is met with. There are several of these on Becraft, which 

 point *to a jnore or less cavernous condition of the low lying 

 limestones. Faults 4 and 5 appear to bound the keystone of a 

 small anticlinal fold, which has collapsed at the center. The 

 strata on either side of the central fault block are dipping away 

 from it. Fault no. 5 also permitted a lateral displacement of 

 the blocks. South of fault no. 5 the surface rock is the Coey- 

 mans, which, together with the dip of the strata, would give 

 about twice the known thickness of the Coeymans. It seems 

 therefore highly probable that another fault (no. 6) runs through 

 the center longitudinally. The throw is of course not so great 

 in this second block, since no Manlius has been brought to light. 

 Fault no. 6 must be regarded as the continuation of fault no. 3. 

 Both of these faults are earlier in date than fault no. 5. Fault 

 no. 7 is another gravity fault with the downthrow on the south- 

 eastern side, and the strata of this portion steeply turned up on 

 the fault plane. West of this the strata are strongly folded, 

 as shown in section 6. 



Fault no. 8 is more of the nature of a breached anticlinal fold, 

 though a slight displacement seems to have occurred at the 

 axis of the fold, where a small stream runs from the mountain 

 side. All of these displacements and extra folds die out toward 

 the southwest, as shown in section 12a, where onh* a single 

 fold (anticlinal 1) can be made out. 



Unlike the preceding faults, which mostly had a uniform 

 direction (about n. 40 e.) or else were parallel to the strike. 

 fault no. has a direction a little south of east. It cuts off the 

 end of syncline no. 2, causing a partial repetition of some of its 

 strata, i. e. Becraft and New Scotland. The downthrow in this 

 case is on the north side of the fault. 



