. The geology of Nova Scotia, New Brunswick, and Prince Edward Island, or, Acadian geology [microform]. Geology; Geology, Stratigraphic; Paleontology; Geology, Economic; Géologie; Géologie stratigraphique; Paléontologie; Géologie économique. 618 THE LOWKR BILUUIAN 1>EKI()U. , aud give no evidence that this inotamorphic diBtrict has auf- fered any considerable disturbance since their deposition. At Mahone Bay, however, I observed a largo quantity of fragments of reddish amygdaloidal trap, which cannot be far from their original site, and probably belong to some trappcan eruption of the
. The geology of Nova Scotia, New Brunswick, and Prince Edward Island, or, Acadian geology [microform]. Geology; Geology, Stratigraphic; Paleontology; Geology, Economic; Géologie; Géologie stratigraphique; Paléontologie; Géologie économique. 618 THE LOWKR BILUUIAN 1>EKI()U. , aud give no evidence that this inotamorphic diBtrict has auf- fered any considerable disturbance since their deposition. At Mahone Bay, however, I observed a largo quantity of fragments of reddish amygdaloidal trap, which cannot be far from their original site, and probably belong to some trappcan eruption of the Carboniferous period. Aspatogoen, which is a rocky promontory, about 500 feet in height, separating Mahone from Margaret's Bay, consists, according to Mr Poole, principally of quartzite and slate with granite, and is apparently at the extremity of a thick dike or ridge of the latter rock, extending to the northward across the stratification of the country. It is the highest land on the Atlantic coast of Nova Scotia. Margaret's Bay is another deep indentation, between Aspatogoen and a broader but lower tract of granitic rock, extending to the north- west arm of Halifax Harbour. Around Margaret's Bay, as at Chester, there are small patches of Lower Carboniferous rocks; but these are for the most part concealed under granitic debris drifted from the neighbouring districts. The granitic district east of Margaret's Bay, and terminating at Cape Sambro, has a north and south direction. It contains several varieties of common aud porphyritic granite, with veins of coarse- grained, and more rarely of graphic granitu. Near the north-west arm there are good opportunities of observing its junction with the slates which succeed it to the eastward. The slate is not here con- verted into mica-slate; but, in the vicinity of the granite, it is hardened and rendered crystalline, and in some places passes into a rock re- sembling hornblende slate. In other places ii; appears as a hard flint
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Keywords: ., boo, bookcentury1800, booksubjectgeology, booksubjectpaleontology
