Our Planet Its Past And Future Or Lectures On Geology
The book Our Planet Its Past And Future Or Lectures On Geology was written by author Denton William Here you can read free online of Our Planet Its Past And Future Or Lectures On Geology book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Our Planet Its Past And Future Or Lectures On Geology a good or bad book?
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Dr. Darwin, in his " Botanic Garden, " referring to this mine, says, " Thus caverned round in Cracow's mighty mines, With crystal walls a gorgeous city shines ; Scooped in the briny rock, long streets extend Their hoary course, and glittering domes ascend; Down the bright steeps, emerging into day, Impetuous fountains burst their headlong way, O'er milk-white vales in ivory channels spread, And, wandering, seek their subterranean bed. " The question very naturally presents itself, Whence came t...hese enormous masses of salt ? There was a time when they were not, and a time when they began to be. Some have suggested, that salt being in some places a volcanic product, salt-springs flowing in the neighbor- hood of many volcanoes, these saline deposits may have been formed at some past time, during a period of great volcanic activity ; the salt carried into lake-basins, and there evaporated. Their origin has also been referred to the evaporation of the water of ordinary salt-lakes, leaving the salt as a sediment.
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