File:Travels amongst the great Andes of the equator (1894) (14771037914).jpg

Identifier: travelsamongstg00whym (find matches)
Title: Travels amongst the great Andes of the equator
Year: 1894 (1890s)
Authors: Whymper, Edward, 1840-1911
Subjects:
Publisher: New York, Scribner
Contributing Library: Robarts - University of Toronto
Digitizing Sponsor: University of Toronto

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est of it, andthe two others shewn in the engraving upon p. 41 were higherup on the right hand or eastern side. The ridge itself appealsto be fundamentally an old How of lava. Hock specimens whichwere taken in situ at various elevations, though differing to someextent in external appearance, are nearly identical in composition,8and 1 have no doubt that several, at least, of the other principal i They are seen in the view facing p. 24, which is taken from almost preciselythe same direction as that facing this page, though at a much lower level. - Marked z on the Sketch //<//</<■ of Chiniborazo. :i This rock (from the second camp, in situ) is a dullish lavender-grey colour,with crystals of glassy felspars up to about -1 inch long, and some minute blackishspecks, which weather rather a reddish colour. I think ii very probable that alittle sanidine is present among the felspars. The rock is a variety of the hyper-stheni ferons augite-andesites.
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CHIMBORAZO, FROM A LITTLE ABOVE THE THIRD CAMP. PHOTOGRAPHED AT 17 450 FEET. chap. in. THE ASCENT OF CEIMBORAZO. 65 ridges of this mountain were originally lava-streams. Theirnormal appearance has been largely modified ; much is coveredup by snow, the exposed portions have been greatly decomposedand eroded, and lie almost buried underneath their own ruins. After these convenient snow-beds were traversed our ridgesteepened — both as regards its arete, and the angles of theslopes on each side ; and became in part covered by pure ice,and partly by ice mingled with small stones and grit. Whenthis conglomerate was hard frozen, it enabled us to ascend with-out step-cutting; but the debris often reposed uncemented onthe surface, and rendered caution as well as hard labour neces-sary. I found here, scattered over about fifty feet, rathernumerous fragments of partly fossilized bones. Sir RichardOwen, to whom they were submitted, pronounced them to bethe bones of some ruminant. The unhappy ru

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