PAET OF THE PKOVINCE OF QUEBEC. 119 



1. " Black, green aud grey shales with heavy bands ol" hard greyish, sometimes 

 yellowish white quartzosc sandstone, which arc thickest in the lower portion, aud with 

 occasional thin bands of limestone conglomerate, the pebbles of which are generally 

 small and the paste quartzose. The quartzites have occasionally scattered pebbles of 

 limestone. 



2. Greenish, greyish aud blackish with occasionally dark reddish or purple tinted 

 shales with bands of hard greyish sandstone, generally fine grained, aud in thickness 

 from one inch to a loot, the massive quartzites being absent, and mauy of the greenish 

 layers being covered with fucoidal markings, well seen on the shore above Cape Rouge, 

 aud in the cuttings along the road above that village. 



3. Bright red shales, often wnth thin greenish and greyish bauds, which in places are 

 calcareous. The rocks on a smoothed surface have a striped red and green aspect ; in the 

 upper part occasional beds of a foot or more of hard greenish-grey sandstone occur. 



4. Red, greenish-grey and black shales, with interstratified masses, often lenticular, of 

 greenish aud greyish sandstone, ranging in thickness from two feet upwards, in 

 which the Sillery quarries are located. This is the typical Sillery sandstone, which 

 ranges from a fine grained homogeueous rock to a fine quartz conglomerate, much of the 

 rock being characterized by the presence of small flaky pieces of shale and scattered small 

 pebbles or large grains of clear quartz, the bands of sandstones being separated by part- 

 ings of various colored shale. The local and lenticular character of the sandstone is well 

 seen in the Sillery section, some of the heaviest beds inland, thinning out before reaching 

 the shore in either direction. In the ujiper part at Sillery church, obolella preliosa occurs. 

 From this point an anticlinal crosses the river to Point Levis and appears in the cliffs at 

 the Victoria Hotel, when the same obolella is found." 



This completes the section on the west side of the river, but if we now pass to the 

 east side at Levis, we cau continue it in ascending order from the red beds of No. 4, just 

 described, as follows : 



5. The Levis shales and conglomerates of Levis city, and the shore and cliff below 

 South Quebec and St. Joseph, and the west end of the Island of Orleans." These rocks 

 occur in synclinals of the Sillery of No. 4. From information obtained from the study of 

 these rocks in other parts of the Eastern Townships, we can complete the Levis upward, 

 thus : 



6. The black aud greyish striped or banded shales, seeu in the St. Francis River 

 section, between Sherbrooke and R'ichmond, and for a long distance to the north and 

 south. These graduate downwards into the Chazy, forming, in fact, the upper part of 

 that formation, and upward pass into the black and graphitic shales and limestones of 

 the Arthabaska and Somerset synclinal, as also of Richmond, Melbourne, Farnham, etc. 

 These latter do not appear in the Point Levis and Quebec section. 



7. The black and brownish bituminous shales and limestone of the city of Quebec, 

 Orleans Island, Marsouin shore, etc., which do not appear to differ in any way from the 

 limestone of No. 6, but which graduate upwards into the Utica-Hudson River or Loraine. 



The rocks comprised in the preceding section include all those of the section of the 

 G-eol. Cau. 1863, to the top of T)iv. 5. Div. 7 was then regaided as the equivalent of the 

 Levis, though now admitted to be the equivalent of the Marsouin rocks, which were then 

 regarded as Utica-Hudson. 



