4 THE ROYAL SOCIETY OF CANADA 



folds in the Cambrian, etc. can be seen; these are reduced to one on 

 the western side of St. John harbor, the other two folds being cut out 

 by faults, or concealed by overlying deposits of a later age. These 

 later deposits, mostly greenish-grey argillites, are unconformable to 

 the Cambrian terrain and have a lower angle of dip. Near their 

 summit, where the dip is S.E., they are covered (un conformably) by 

 the red conglomerate and shales of the old glacial series which forms 

 the subject of this paper. These shales and conglomerates dip at a 

 low angle to the nortwestward, a dip which is quite at variance with 

 that of the older rocks beneath them, in which the dip is at a high 

 angle to the S.E. 



The limestone fragments in the overlying conglomerates are 

 evidently derived from the pre-Cambrian limestones of the complex 

 to the northward and have been transported a distance of three or 

 four miles from their original beds. 



At the point where the upper part of the grey slate series ends on 

 the Black riyer road eastward of Saint John, the succession in the 

 underlying complex is interrupted by a deposit of volcanic breccia, 

 marking the base of an overlying slaty series, here lying directly upon 

 the older part of the complex, but presenting a lower angle of dip than 

 the preceding slates, yet exhibiting similar slaty cleavage; further 

 west this portion of the complex (known as the Mispec Group) is 

 separated from the rest, and is evidently of later origin, but still is of 

 greater antiquity than the Devono-Carboniferous, which forms the 

 basis of the present article. 



Probable Conditions on the Northern Slope of the Complex 



On this slope of the complex greater displacements have occurred, 

 both parallel to the course of the slaty cleavage and at right angles to 

 it; these have caused irregular depressions which have made it difficult 

 to trace the displacements that have occurred along fault lines, and 

 the relations of the fragments in the old glacial "till" to the beds of 

 the complex from which they have been derived. However, we again 

 find the old pre-Cambrian limestones our surest guide in tracing the 

 fragments to their source. Pieces of a peculiar marmorized variety of 

 the limestone, which is well marked, exist in ledges of that formation 

 near the western end of Long Island in Kennebecasis River, and are seen 

 in the glacial till of the "Minister's Face" above referred to, among 

 the more numerous pieces of gneiss, with which they are associated. 

 The place where this marble would pass near the "Minister's Face" 

 is now underneath the waters of Rothesay Bay on the above named 



