DESCRIPTION OF SECTIONS 31 



72. — 7 miles S of Woodsville, % mile N of Haverhill station, ra- 

 vine on the western side of the highway. 



The upper 20 feet of the section covered by turf. The clay is 

 very fat and with many disturbed zones. The underlying 

 till was reached, but the bottom varves are missing because 

 of landslide. 



Series measured: 7009-7048, (7049-7106, 7 130-7 1 74, 

 7199-7228, 7236-7268, 7274-7304). 



73. — 7 miles S of Wells River, Vt., 1 mile N of Conicut station, 

 brook ravine 100 yards W of the railroad, where the bend 

 of the Connecticut River comes close to the railroad. 



Plain of sedimentation. 



20 feet varve sand, about 30 varves. 



10 feet varve clay, 275 varves. 



10K feet varve clay, 900 varves. 



Varve clay with good lamination but with some disturbed 



zones, measured. 

 Level of the brook. Depth to substratum unknown. 



Series measured: 6990-7004, 7008-7087, 7 199-73 16. 



This profile shows that the glacial lake was in existence 

 for at least 1,600 years. 

 74. — 6 miles S of Wells River, one clay pit 1 mile S of Newbury 

 station 1 50 yards W of the railroad and another 300 yards 

 farther S just west of the tracks. 



Small sections in partly disturbed clay. Varves at different 

 horizons slidden away. 



Series measured: 7008-7048, 7008-7042, (7049-7066, 

 7073-71 15). 



75. — 4^3 miles S of Woodsville, N. H., bluffs on the brook 300 

 yards S and W of Blackmount station. 



The clay is underlain by till. The sections are of little value, 

 since several zones are slidden. 



Series measured: 6930, bottom varve -6941, 6967-7048, 

 6967-6985, 7008-7029, 7009-7048, (7035-7088, 7049- 

 7092,7147-7201). 



