Which types of rocks are the most abundant constituents of the Earth’s crust?


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Which types of rocks are the most abundant constituents of the Earth’s crust?
asked Jul 12, 2012 in Geography Questions by anonymous
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Igneous rocks form 95% of the upper part of the earth’s crust. Igneous rock is formed by the solidification of lava that comes out generally from volcanoes. Some examples of igneous rocks are: granite and basalt.
answered Jul 16, 2012 by veshnavi Moderator (1,837,000 points)

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