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Geological Observations On Volcanic Islands
Geological Observations On Volcanic Islands
Author: Charles Darwin
The overlying basaltic lava is in some parts extremely vesicular, in others little so; it is of a black colour, but sometimes contains crystals of glassy feldspar, and seldom much olivine. These streams appear to have possessed singularly little fluidity; their side walls and lower ends being very steep, and even as much as between twenty and th...  more »
ISBN-13: 9781419121555
ISBN-10: 1419121553
Publication Date: 6/30/2004
Pages: 140
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Publisher: Kessinger Publishing
Book Type: Paperback
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