Igneous rocks /
Nearly all of the oceanic crust and large parts of the continental crust are comprised of igneous rock. Originating deep in Earth's underworld, magma is created from silicate minerals by tectonic forces. Some magma cools slowly beneath the surface, but some is forced to the surface as lava wher...
| Format: | Video |
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| Language: | English |
| Language Notes: | In English. |
| Published: |
Dallas County, TX :
Dallas County Community College District,
2012.
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| Series: | Academic Video Online
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| Subjects: | |
| Online Access: | Connect to this streaming video (Alexander Street Press) |
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