323 



Miles and -j-j^g Carbonifcrous Limestone series and of the 

 Millstone Grit, several miles broad, runs along 

 the northern flanks of the Cobequid hills while 

 the lower country to the north is underlain by 

 gently dipping Permo-Carboniferous strata. 



113-5 m. Wentworth Station — Alt. 472 ft. (134-8 m.). 



182-6 km. Wentworth station lies almost on the northern 

 edge of the igneous area of the Cobequid hills. 

 Bordering the igneous complex at this point 

 for a length of about 2| miles (4 km.) in an east 

 and west direction, is an area of Silurian rocks 

 having a maximum width of about f miles (1-2 

 km.). The strata consist mainly of highly 

 inclined dark slates which in places are fossil- 

 iferous and apparently are of Clinton age. 



Beyond Wentworth station, the railway 

 enters this limited Silurian area and as it curves 

 around to the west on the steep northern slope 

 of the Cobequids, a splendid view is obtainable 

 across the low country to the north. At a 

 distance of about i| miles (2-4 km.) from Went- 

 worth station, the railway enters a belt of strata 

 consisting largely of shales and sandstones 

 considered by Fletcher to belong to the Carbon- 

 iferous Limestone series. These measures directly 

 overlie the igneous rocks of the Cobequid hills and 

 with a width of i to 2 miles (1-6 to 3-2 km.) 

 stretch for a number of miles both to the east 

 and west. The strata dip northwards at angles 

 of 10° to 40°. 



118-0 m. Westchester Station — Alt. 299 ft. (91 - 1 m). 



189-9 km. Westchester station is situated on the northern 

 margin of the narrow band of the limestone 

 series. To the north, for a width of about 2 

 miles (3-2 km.), the low, broken country is 

 underlain by strata assigned to the Millstone 

 Grit and consisting mainly of an assemblage of 

 conglomeratic strata overlain by sandstones 

 and shales. The strata dip to the north at 

 angles of 30° to 12°. 



1 19 -3 m. Grenville Station — Alt. 290 ft. (88-4 m.). 



192 km. Grenville station is situated near the northern 

 boundary of the Millstone Grit conglomerate. 

 The Millstone Grit sandstones and shales occupy 

 35063— 8|a 



