128 ROYAL SOCIETY OF CANADA 



Prof. J. E. Woodman, of Dalhousie, who has treated this system 

 from an indt'pendt-nt point of view, and brought to its elucidation the 

 advantages of a modern scientific training, has given the series local 

 names. For the series as a whole it is the Meguma series. The 

 quartzite division bears the name of the Goléenville formation, and the 

 black slate division the Halifax formation. 



With such a great development of these pre-Cambrian rocks in 

 Nova Scotia it is natural that we should look for a similar suit of 

 sediments in the neighbouring province to the northwest. In their 

 study of the strata in southern New Brunswick, the surveyors of the 

 Canadian Geological Survey thought they had found such a set of beds 

 in the areas which are marked " A-B " on the geological map. The 

 three most important areas thus marked are in eastern St. John County, 

 western King's County, and southwestern Charlotte County. 



A section of these rocks is found on the lower part of the Nerepis 

 river, in King's Co., New Brunswick, where, with a further space along 

 the west side of the St. John, a broken anticline of ancient slates and 

 schists is exposed.^ 



Here are found southward of the Silurian terrane, a thick set of 

 ancient elastics. The heart of the anticline consists of gray granitoid 

 grits with very considerable bodies of gray clay slates interlaminated, 

 and some bands of brown conglomerates. The mass has a thickness 

 of about 7,000 feet, and, as half dips to the north and half to the 

 south, there would be about 3,500 feet on each iside of the anticline, if 

 it be such. These coarse beds have resting upon them on the north 

 about 2,000 feet of gray clay slates, with dark purple slates at tihe 

 bottom. Omitting a space of 1,500 feet occupied by dark gray shales 

 like those of the St. John Group (Cambrian), which may represent a 

 possible addition of that thickness to the grits and slates, this upper part 

 of the lower terrane may be counted as 5,000 feet. There are also, on 

 the opposite, on southern side of the anticline, a similar body of gray 

 slates and of about the same thickness. 



Following these to the south is a great body of dark gray and 

 gray clay slates and gray feldspat^ic slates that extend to Brundage'h 

 point, in nearly vertical beds. These, perhaps, are the upper or dark 

 slate division of the Lower Huronian repeated.'^ The corresponding 

 ttrata to the southwest on the Passamaquoddy Bay have a much larger 

 body of black slates, and those on the St. Croix are very rusty 

 weathering. 



> Rep. Prog. Can. Geol. Surv., 1870-71, p. 113. 

 2 Rep. Prog. Geol. Surv., 1870-71, p. 120. 



