Item Details

Intrusive Igneous Rocks [electronic resource]

produced by Intelecom
Format
Video; Computer Resource; Online Video; Online
Summary
Explains that most magma does not extrude onto Earth's surface but cools slowly deep inside Earth. This magma seeps into crevices in existing rock to form intrusive igneous rocks. Experts provide a graphic illustration of this process and explain the types and textures of rocks such as granite, obsidian, and quartz. Once again, plate tectonics is shown to be involved in the process.
Performers
Presented by James Sadd ; narrated by David Gilfillan.
Release Date
1992
Run Time
28 min.
Language
Closed-captioned
Rating
high school/college
9-12+
Notes
Video streaming is available for these titles.
Series
Earth Revealed
Series Statement
Earth revealed ; 14
ISBN
1559464437 (series)
Published
South Burlington, Vt. : Annenberg/CPB, c1992.
Description
Mode of access: Windows Media Player, World Wide Web.
Technical Details
  • Access in Virgo Classic

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    a| Closed-captioned.
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    a| Igneous rocks
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    a| Magmas.
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    a| Plate tectonics.
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    a| Geology, Structural.
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    a| Geomorphology.
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