PART OF THE PROVINCE OF QUEBEC. 117 



a coarse gritty paste containing pebbles of quartz, hard sandstone and grey limestone. 

 Similar bold coast features are presented at Bic ; and inland a rough belt of country com- 

 prising similar rocks extends, with some interruptions, between Kamouraska and St. 

 Thomas. These rocks form a part of the series described as Potsdam by Richardson from 

 the finding of scolithus markings in the quartzite and .salterella in the limestone. They 

 are, however, undoiibtedly a part of the Sillery formation, in which the coarser beds have 

 a somewhat unusually large development. About two miles below Matane village cer- 

 tain black shales on the beach, also a part of this formation, contains dictyonema in 

 abundance, var. sociale, and fragments of small trilobites of primordial aspect. Large 

 collections of these were made first by Mr. Richardson and subsequently by Mr. A. P. 

 Low, of the Geological Survey ; the beds in which they occur are directly beneath the red 

 and green shales, of the Sillery. 



At Little Metis, both the quartzose beds with limestone conglomerate are seen along 

 with slates of various colours, the characters similar to those already described. In cer- 

 tain interslratified black bauds in the red and green shale series Dr. Harrington, several 

 years ago, found remains of sponges which have been examined and described since by 

 Sir Wm. Dawson.' Precisely similar organisms were obtained in 187*7 by Mr. T. C. Wes- 

 ton from the typical Sillery rooks near the falls of the Chaudière above Pt. Levis, where 

 several forms of Obolella also occur. This Obolella or Linnarsonia is also found in the beds 

 at Métis, and is characteristic of the Sillery rocks at many points both aloug the shore 

 and inland, as in the vicinity of St. Thomas, St. Gervais, &c.- The horizon of the Métis 

 beds can therefore be considered as definitely fixed in so far as their relations to the Sillery 

 elsewhere is concerned, from the fossil evidence as well as from the associated shales, 

 but at Little Métis point the typical Sillery standstone comes in and forms an extensive 

 area along the shore for several miles toward the great Métis River. From the relations 

 of the several series of beds here developed it is probable that many of the beds of the 

 formation are in an over-turned position or are arranged in a series of folds, the indications 

 of which are plainly to be seen in the shore section eastward for some miles. 



Between Matane and Métis an important area of the Trenton Utica rock is seen at a 

 place called Gagnon's Beach. This area begins at the mouth of the Tartigo River and 

 extends westward for about three miles. In character the strata are like those observed 

 at the Griflin Coac area, viz., black bitumiiiov\s limestones and slates, with dolomitic 

 bands, and in places these are filled with graptolites similar to these obtained at the city 

 of Quebec and the Marsouin River — lists of which have been already published.^ The 

 relations of the Trenton beds at this place are as elsewhere described. At either 

 extremity of the baud they dip directly beneath the red and grey Sillery slates, the con- 

 tact being an overthrust fault. 



The section south from Little Métis can be well seen on the Intercolonial Railway 

 nearly to the head of Lake Metapedia where the Quebec rocks are overlapped by the 

 upper Silurian fossiliferous limestones. Between the shore and the railway frequent 

 exposures of the typical Sillery strata are seen on either side of the roads, and on the rail- 

 way itself, the series is essentially the same. Occasionally beds of limestone conglom- 



' Can. Rec. of Science, 1890. 



'' Annual Uep., 1S88, Ells. p. 6G-69 K. 



' See Rep. Prep;. 1881-82, Ells, p. 29.;',n, D.P. T,ap\vortli ' Tran. Roy. Snc. Ciin.' lS8(i, p. 178. Near Tartigo River 



