The book The San Francisco Calamity By Earthquake And Fire was written by author Morris Charles Here you can read free online of The San Francisco Calamity By Earthquake And Fire book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is The San Francisco Calamity By Earthquake And Fire a good or bad book?
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At many points, however, alongthe sides of these great chains we find that fissures have been openedand lines of volcanoes formed, from which enormous quantities of lavahave flowed and covered great tracts of country. This is especially marked in the Snake River plain of Idaho, in thewestern United States. In this, and the adjoining regions of Oregon andWashington, an enormous tract of country has been overflowed by lava ina late geological period, the surface covered being estimated to have al...arger area than France and Great Britain combined. The Snake River cutsthrough it in a series of picturesque gorges and rapids, enabling us toestimate its thickness, which is considered to average 4000 feet. Lookedat from any point on its surface, one of these lava-plains appears as avast level surface, like that of a lake bottom. This uniformity has beenproduced either by the lava rolling over a plain or lake bottom, or bythe complete effacement of an original, undulating contour of the groundunder hundreds or thousands of feet of lava in successive sheets.
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