Proceedings and transactions of the Nova Scotian Institute of Natural Science Volume 5 - Tapa blanda

Sinopsis

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1882 edition. Excerpt: ... series are invariably associated with intrusive Diorite. Succeeding this band are B. &B strata, these contrast strikingly with the preceding. They are generally very soft furnishing the pencil stone of Row's Mineralogy of Nova Scotia, when exposed they become clay. The lower strata contains my " Lingula nodule bed." As usual at my last visit I extricated a great number of nodules from its two exposures These contain beautiful linguLae of several species. B strata as usual furnish a great variety of genera and species peculiar to our Clinton period. They will be found included in our lists of fossils in the sequel. The west branch of Barney's River is the approximate boundary of this Middle Silurian area. The Carboniferous begins in the river at the mill north of McPhee's Silurian (A) strata. At Dewar's Furniture Factory strata B extended beyond the river. Between Robertson's and the Rev. Mr. McKeehan's, the carboniferous mountains south of Piedmont Valley, have their extremity on the east. This apparent intrusion into the Middle Silurian originally led mo to infer a connection with Cameron's mountain already referred to. ANTIGONISH AND PlCTOU MOUNTAINS. From McPhee's extremity of A (Middle Silurian strata) I crossed the Middle Silurian and then the Carboniferous, and reached the old mountain road at Bailey's Brook. At the bridge and fulling mill ruins, Igneous rocks were observed, of lower carboniferous age. A short distance above the bridge I examined a mass of limestone of lower carboniferous aspect. J. McLellan who pointed it out to me, assured me that similar limestone had been quarried in the high ground to the east of the mountain road and used for building purposes. Farther on the road side and mountain sides and summit, outcrops of...

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