123 



Miles and f Sil ur ian, in part of Ordovician age, are in- 



Kuometres. . t • i t i • • i 



tncately associated. In places gneissic rocks 

 have developed apparently as the result of lit 

 par lit injection of granite material into sedi- 

 mentary beds. 



Beyond the crossing of Elmtree river, the 

 railway pursues a southerly course and traverses 

 a band of closely folded Silurian measures. 

 The Silurian strata are succeeded on the south 

 by Ordovician beds; the line of contact passing 

 westward just south of Nigadu river, 4! miles 

 (7-2 km.) from Elmtree river. In the northern 

 part of the Ordovician area, the measures are 

 light coloured slates, sandstones and fine con- 

 glomerates possibly of tuffaceous origin. They 

 are closely folded along east-west axes and are 

 cut by numerous dykes of diabase. At one 

 locality north of the crossing of Tetagouche 

 river, the railway crosses an area of igneous 

 rocks possibly including both tuffs and lavas. 



51 m. Tetagouche River — At the crossing of Teta- 



82-1 km. gouche river are deep cuts in stratified sands 

 and clays containing many shells such as cha- 

 racterize the Leda clay and Saxicava sands of 

 the St. Lawrence valley. These unconsolid- 

 ated, stratified deposits have a thickness of at 

 least 100 feet (30 m.) and probably are much 

 thicker. 



Along the Tetagouche river at the railway 

 crossing, occur black slates carrying a grapto- 

 lite fauna of lower Trenton, (Normanskill) age. 

 These black slates with associated beds of fine 

 sandstone form a wide zone of closely folded 

 strata stretching inland in a westerly direction. 



54 m. Bathurst Station — Alt. 45 ft. (13-7 m.). 



86-9 km. At Bathurst the railway leaves the coast. The 

 town of Bathurst is visible from the railway. 

 It is situated at the foot of the nearly land- 

 locked bay into which empties the Nipisiguit 

 river, one of the larger rivers of New Brunswick. 

 Leaving Bathurst station, the railway follows 

 along the west bank of Little river. At the 

 crossing of a large tributary and again farther 



