352 



Scientific Intelligence. 



took placo ill c-lays of a slightly lower horizon in the same series, 

 very similar in color, though more thinly laminated and sandy 

 than the higher beds. 



The antielinal folding (fig. 1) was exposed in a pit now being 

 worked near the road leading from Metuchen to Woodbridge, 

 this road being a continuation of Main street (Woodbridge) and 

 the location about half a mile west of the latter town. The floor 

 of the pit is about 25 feet below the level of the road at this 

 point, and on its south side. A beautiful 15 foot anticline in 

 the clays on the west side of the pit was formerly conspicuous, 



Fig. 



Fig. 2. Faulting in Cretaceous clays resulting from glacial pressure. 



but has since slumped down. The present smaller fold is in the 

 south wall, and at the time when the photograph was taken was 

 at the principal point of attack on the clay deposit. To right 

 and left Of the fold were thinly laminated clays in alternating 

 dark and light layers, forced up into close plications, much like 

 the smaller plications in the pre-Cambrian gneisses. Under the 

 crest of the main anticline there was a noticeable thickening of 

 one layer, evidently due to the squeezing up of the bed into the 

 space under the arch, as the latter was raised. The apparent 

 unconformity (disconformity) in the wall near the floor of the pit 

 was probably due to irregularity of deposition. 



The second exposure (fig. 2) was made in the process of remov- 

 ing a clay deposit in a small hill, just east of the C. K. R. tracks 



