144 Mineralogy and Geology of a part of Nova Scotia. 
strata, appears to account for those phenomena in a more | 
satisfactory manner than any other, we shall now pass to 
the neighboring strata of dnieditdee and shale, forming the 
moderately elevated and rounded hills of the county 
Cumberland, and part of the —— of Hants, and part of 
the districts of Colchester and Pict 
It becomes necessary to pay “the formation before 
speaking of the South Mountains on account of its intimate 
connexions with the trap which we have previously alluded 
to, in describing the capes which project into the Basin of 
ines, 
The sandstone, constituting so large a portion of the prov- 
ince of a Scotia, is of various appearance, differing 
t different places. In the immediate vicinity of 
> se za at Cape Chignecto, einige and Swan’s 
Creek it is of a dork brick red color, onsists of irregu- 
ment, containing a oa om ai of oe of iron. 
Where in connexion with the trap as before observed, the 
sandstone passes inscaaihly into the shale, or rather, the two 
form a compound in which the eye can distinguish no line 
of division, so completely are they blended. The shale va- 
ries greatly i in color, and Series like the sandstone, be- 
comes red in the presence of the trap rocks, it as- 
sumes a bright tile red color, and when exposed to the ac- 
tion of the waves, it becomes polished on the raiggets — 
rock consists of thin folia of argillaceous slate, 
including a little = and is savally ri pe aoe 
iron. Comparatively remote des rom the trap, the shale as- 
sumes a grey, brown, “ bluish black color: more rarely it 
eee with green. 
Riieeice River, the shale is ene black, and ap- 
Tirge oes colored by carburet of ir It here includes a 
oes Pisa OF Seaipact limestone, a prs of which has 
encroachments of the waters of the Ba- 
sin vate y Mine A little b be pond Fox River towards pe 
