i6 



CLAYS AND CLAY INDUSTRY. 



abruptly at the fault plane, its continuation on the other side 

 being at higher or lower level. Faulting is rarely seen in the 

 New Jersey clay deposits, but a series of small displacements were 

 noticed in AY. H. Cutter's pits (PI. Ill, Fig. i). 



% * . 



Fig. 6. 



Section of horizontal strata, with only the top one exposed at the surface. 



Both tilting and folding exert an important influence on the 

 form and extent of the outcropping beds. Where no tilting has 

 occurred, that is. where the beds are flat, only one bed, the upper 



Fig. 7. 



Showing how horizontal beds are exposed along the sides of a valley. 



one of the section will be exposed at the surface, where the latter 

 is level (Fig. 6), and lower beds will be exposed, only where 

 stream valleys have been carved (Fig. 7). 



