292 



G. li. CHADWICK POST-ORDOVIC'JAN DEl^^ORMATION 



disturbance, the most noteworthy examples being at the east end of the 

 largest, as shown in the cross-section (figure 6), and the area just below 

 the name "Harrison Creek" of the map. of which a cross-section is given 



Figure 4. — Cnimpliiifi af Itcrkniantoini Limrstone in nhl Qvarry ut YalcvUle 



Figure 5. — Inverted Buckle crossing Raquette River helow Bridge at Norfolk 



in ligure 7. The close plications of the latter seem explicable only in 

 terms of a lateral compression, involving necessarily the underlying crys- 

 tallines. A slight pinching of the pre-Cambrian syncline is all that is 

 required, as illustrated in the diagrams (figures 8 and 9). 



