SOUTHERN NEW BRUNSWICK. 9 D 



East of the St. John River, in Kings county, we have included in Bed.- of 

 this group a variety of beds whose relations are not yet clearly made UD 

 out. Among these, in addition to the beds described on page 6 d 

 under the head of Cambrian, are rocks, between Tenant's and Jones' 

 Coves, a portion of which present marked Huronian characters, but 

 which are so intimately associated with other slaty rocks that their 

 separation is almost impossible. These rocks are described in the 

 report of 1870-71, page 70. Associated beds of bright silvery slate, 

 black carbonaceous slate, chloritic and petrosilicious rocks are also 

 seen, but the country, in places, is so wooded, and the exposures so 

 few from this cause and from the covering of drift, that their rela- 

 tions are doubtful. For the present, therefore, it has been deemed 

 advisable to include all these various rocks whose stratigraphical rela- 

 tions are uncertain in our general group of Cambro-Silurian. In our 

 examinations of this region fossils, of undeterminable forms, were dis- 

 covered, only at one point, on the back road near where it is crossed by 

 the Pascobac, about three miles north-west of Callina corner. The 

 beds here appear to occupy a narrow trough between ridges of pre- 

 Cambrian rocks. 



IV. Silurian. (Upper Silurian of former reports.) 



The rocks belonging to this formation have not, with one exception, s carce i y 

 been recognised with certainty east of the St. John River. Certain "*£ ofstfjohn 

 ai*eas in Wickham were formerly provisionally assigned to this hori- River * 

 zon, but as no fossils have ever been found among them, and their 

 lithological characters differ markedly from those of the fossiliferous 

 beds, which are so largely developed west of this river, they have 

 now been assigned to the Cambro-Silurian formation. It is possible 

 that limited areas or patches may exist among the older rocks in that 

 locality, but owing to the extensive covering of Lower Carboniferous 

 beds that are superimposed upon the Cambro-Silurian and pre-Cambrian, 

 any rocks of this age that may have been deposited have been concealed. 

 "West of the St. John River, however, several Silurian areas occur in 

 Queens, Kings and Charlotte counties. Of these, the most prominent 

 is that extending west from the Mistake, on the St. John River, along Areas west of 

 the northern flank of the pre-Cambrian ridge north of the Long Reach, 

 until it is terminated by the granites. These Silurian beds sweep 

 around the eastern end of the granitic axis, and are seen occupying 

 shallow basins in the vicinity of Jones' Creek, in Queens county, where 

 they surround the bosses of Huronian felsite known as Blue Mountain 

 and Broke-Neck, as well as others further west. Their northern limit 

 can be fixed with considerable accuracy. On the St. John River, at the 



