162 GLACIAL SUCCESSION IN CENTRAL LUNENBURG PREST. 



It shows no sign of stratification, and contains large numbers of 

 striated boulders. 



A few boulders with the striations almost effaced are found 

 in 2, a, and striated boulders are also found in the surface soil, 

 3. Oxidization is most complete in the lowest bed, 1, which is 

 of great thickness, while the upper bed is the least oxidized of 

 all. This is only part of a larger kame which has suffered 

 extensive denudation on the western side. 



At Bridgewater it is impossible to get a good section, but 

 near the railway station and at Sebastopol the beds show the 

 following arrangement : 



7, Recent alluvium, with tree trunks and stumps, and ancient 

 Indian implements, overspread by forest growth. 



6, Modified drift and river gravels. 



2 to 5, Succession uncertain. Deposit consist of boulder 

 clay, karnes, and river terraces ; the kames being very highly 

 oxidized and consisting of the same material as the underlying 

 oxidized drift. 



1, The so-called Bridgewater conglomerate, a pasty iron 

 cemented mass of rounded and angular boulders of quartzite, 

 slate, granite, trapand diorite. This is the most highly oxidized 

 deposit in this part of the province, and contains striated rocks. 

 It is slightly modified in its upper portions, but is underlaid by 

 completely oxidized local drift, consisting of angular fragments 

 of slate in a matrix of clay and sand. 



CORRELATION OF DEPOSITS. 



First Glacial Epoch. 



The Bridgewater drift conglomerate is evidently the most 

 ancient glacial deposit in this part of Nova Scotia. The evidence 

 for this is' as follows : 



1st. It is always seen in direct contact with the bed rock 

 and cemented thereto, so as to become in its lower portions 

 almost immovable without the aid of dynamite. 



