. Narrative of discovery and adventure in the polar seas and regions [microform] : with illustrations of their climate, geology, and natural history ; and an account of the whale-fishery. Natural history; Sciences naturelles. 414 ? ARCTIC GEOLOGY. I,: «*.â â .""!'â. â¢. I i lasts but a few weeks, I found, on examining a series of specimens, to contain various tropical-looking fcssil plants, resembling those in the coal-fields of Britain; and as the same formation occurs in Jameson's Land, in latitude 71°, it is very probable that future natural- ists will detect, in its strata, pla
. Narrative of discovery and adventure in the polar seas and regions [microform] : with illustrations of their climate, geology, and natural history ; and an account of the whale-fishery. Natural history; Sciences naturelles. 414 ? ARCTIC GEOLOGY. I,: «*.â â .""!'â. â¢. I i lasts but a few weeks, I found, on examining a series of specimens, to contain various tropical-looking fcssil plants, resembling those in the coal-fields of Britain; and as the same formation occurs in Jameson's Land, in latitude 71°, it is very probable that future natural- ists will detect, in its strata, plants of a similar nature. Remains of vegetable substances with tropical charac- ters, evidently in their native place of growth, under the seventy-fifth degree of north latitude, is a fact which naturally leads to very interesting discussions with re- gard to the ancient forms of the land, the ancient state of the climate, and consequently to the early condition of the animal and vegetable kingdoms of the Arctic regions. The coal formation of Jameson's Land, at NeiWs Cliffs, exhibits a splendid display of secondary trap-crags, as is so often the case in the middle division of Scotland. The secondary trap-rocks,âall of which are more or less of an igneous origin, and the consideration of which derives so much importance from the position of the neighbouring strata, the outline of the surface, and the elevation of it above the waters of the ocean,-âoccur at Traill Lsland, forming, it should seem, nearly its whole mass. These rocks are principally greenstone, claystonc, and felspar porphyries. Neither Captain Clavcring, nor Captain Sabine, who accompanied hira, appear to have bestowed any attention on the geology of the country surveyed from Cape Parry to latitude 76°, the most northern point of Greenland seen by the fi^-st of these officers, as all we ol)tiiin from their reports is simply, that it was mountainous, from 3000 to 4000 feet high, and principally composed
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