Grewingk's Geology of Alaska and the Northwest Coast of by Constantine Grewingk

By Constantine Grewingk

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Additional resources for Grewingk's Geology of Alaska and the Northwest Coast of America.: Contributions Toward Knowledge of the Orographic and Geognostic Condition of the Northwest ... Historical Translation Series, V. 11)

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From these not always exact descriptions we can discern that Captain Belcher has had the opportunity to observe glaciers and their movement, which were unfamiliar to him, and in this location most likely faster than elsewhere observed. A closer investigation of these would be of considerable interest. It seems on the whole, that glaciers have an extraordinary distribution along this coast, and ought really be considered on par with the types of rocks. Even the most marginal of travelogues mention them, how much more so, then, in the following, more detailed report on the Copper River.

Above sea level; and they are covered with rock boulders that look like ruins when observed from on board ship. Toward S and SW these mountains terminate in steep rock walls at the shore. And offshore there are three small islands. To the north and west the mountains descend gradually all the way to the seashore. But at the NW end of the island they form a wedge-shaped promontory. The upper parts of the island were buried under snow. But the lower portions were barren (the same as on Bering Island) or covered with moss or grass.

I perceive in Vancouver, (vol. iii. ,) twenty-three fathoms was his nearest approach, and within one league. ” It is very probable there has been a misreading of his manuscript, or that severer weather had covered his trees with ice, for we saw none, and that portion of the coast was examined with his voyage constantly before me, and the discrepancies discussed with our spy-glasses on the objects. Our observations and speculations, on the motion of the ice now before us, led us to suspect that the whole of the lower body is subject to slide, and that the whole of the substratum, as frequently found within the Arctic Circle, is a slippery mud.

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