. Acadian geology [microform] : the geological structure, organic remains and mineral resources of Nova Scotia, New Brunswick and Prince Edward Island. Geology; Paleontology; Geology; Geology; Geologie; Paléontologie; Géologie; Géologie. itli side, iliir IjchI, On tlio :liff, and ' several ic lights trap still loid and le island, illizcd in , forming )st acccs- lias been juantities its beach, spar, may- Partridge id by the lie porous thers, are ; of crys- oniferous distant, [ccipitous of trap Itakes the It will ices seen inderlies ic latter, manner, ks, of the idstones the red I belched Imass
. Acadian geology [microform] : the geological structure, organic remains and mineral resources of Nova Scotia, New Brunswick and Prince Edward Island. Geology; Paleontology; Geology; Geology; Geologie; Paléontologie; Géologie; Géologie. itli side, iliir IjchI, On tlio :liff, and ' several ic lights trap still loid and le island, illizcd in , forming )st acccs- lias been juantities its beach, spar, may- Partridge id by the lie porous thers, are ; of crys- oniferous distant, [ccipitous of trap Itakes the It will ices seen inderlies ic latter, manner, ks, of the idstones the red I belched Imass of ^he trap lass on TRURO TO CAPE D OR. 107 I this coast. At Cape d'Or, as at the Five Islands, a great mass of trap rests on slightly inclined red sandstone, and this again on disturbed Carboniferous rocks, while, behind and from beneath these last, still older slates rise into mountain ridges. Cape d'Cn- thus forms a great salient mass standing ont into the bay, and separated from the old slate liills behind by a valley occupied by the red sandstone and Carboniferous shales. Cape d'Or differs from most of the trappean masses wliidi have been described in tlie arrangement of its component parts. The upper part of the cliff consists of amygdaloid and tufa, often of a brownisli colour, while beneath is a more compact trap, showing a tendency to a columnar structure. Tlie whole forms a toppling clIfT, more shattered and unstable In its aspect than usual. Cape d'Or derives its name from the native copper which is found in masses, varying from several pounds in weight down to the most minute grains, in tlie veins and fissures which traverse the trap. It is sometimes wedged into tlicse fissures, along with a hard brown jasper, or occupies the centre of narrow veins of quivrtz and calc spar. At first sight, these masses and grains of pure copper appear to have been molten into the fissures in which we find them. On more careful consideration of .ill the circumstances, and those of
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Keywords: ., boo, bookcentury1800, booksubjectgeology, booksubjectpaleontology
