Volcanic Rocks
My Blogs (olelog) are mainly based on my daily
reading of earth science news.
Here on whatonearth.olehnielsen.dk I try to weave
some of the pieces together to a greater whole with added background info.
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Volcanic Rocks |
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My Blogs (olelog) are mainly based on my daily
reading of earth science news.
Here on whatonearth.olehnielsen.dk I try to weave
some of the pieces together to a greater whole with added background info.
|
||
Igneous rocks may be extrusive on the Earth's surface - see Volcanic Rocks
or intrusive into the rocks forming the crust of the earth - see Plutonic Rocks.
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