CHAPTER III 



DESCRIPTION OF THE SECTIONS AT THE 

 LOCALITIES STUDIED 



In the following a description is given of the sections at the 

 localities studied. Their locations are indicated on the series of 

 maps, as follows: localities 1-6, Fig. 5; 7-25, Fig. 6; 26-28, 

 Fig. 7; 29-34, Fig- 8; 35~43, Fig. 9; 44~6o, Fig. 13; 61-67, Fig. 10; 

 68-73, Fig. 11; 74-91, Fig. 12. The layers in the sections are 

 enumerated from the top downward. 



Localities in the Connecticut V alley 



1. — 3X miles SSW of Hartford (railroad station), Conn., 

 Charter Oak Park, Park Brickyard on the eastern side of 

 the railroad. Close to the railroad a hollow was dug down 

 to a depth of 15 feet below the bottom of the clay pit. 



5 feet weathered varve clay. 



Gray brown clay with thin reddish zones, varves 3001-3454. l 



Lamination very good. Small disturbance at about varve 



3240. 

 8 inches slidden zone. 

 Silt to quicksand, 22 varves. Average thickness of varves 



2 inches. 

 10 inches slidden zone. 

 Silt to quicksand, 27 varves. Average thickness of varves 



i>2 inches. 

 Depth to substratum unknown. In the vicinity the thickness 



of the clay is by borings found to be about 100 feet. 



Series measured: 3001-3200, 300 1-3 167, 3°55~334 6 > 3**5- 

 3207, 3155-3206, 3171-3346, 3250-3454. 



1 For numbering of the varves see page 49. 



