July-August 1879, Alaska Trip Image 57
parallelism with the coast, and with the well marked scratches, striae, and [ ] rocks on comparatively level ground where the flow was nearly uninfluenced by the topographical features would of itself suggest this origin as to cause; while the compliance to groups of mountains bearing ice as to tren...
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| Language: | English |
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Scholarly Commons
1879
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| Online Access: | https://scholarlycommons.pacific.edu/jmj-all/1437 https://scholarlycommons.pacific.edu/context/jmj-all/article/2436/type/native/viewcontent/fullsize.jpg |
| Summary: | parallelism with the coast, and with the well marked scratches, striae, and [ ] rocks on comparatively level ground where the flow was nearly uninfluenced by the topographical features would of itself suggest this origin as to cause; while the compliance to groups of mountains bearing ice as to trend-variation corroborates it. The determining cause of the location of these parallel coast fiords was the pre-glacial mountain spurs, the modified, heavily over-swept remnants of which form the walls of the fiords, and the highest of these towards the last of the period nourished and sent down small local glaciers, sculpturing them in some places quite deeply, the tributary canons coming down to tide water. All above 2000 ft nourished these local glaciers. The islands, so remarkable a feature, are simply roches moutonees brought into relief from the general mass as in inland glaciation from superior strength and favorable location. That this is the simple cause of this stupendous group https://scholarlycommons.pacific.edu/jmj-all/2436/thumbnail.jpg |
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