Intrusive igneous rocks / produced by Intelecom.
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,...
Saved in:
| Online Access: |
Streaming video (Emerson users only) |
|---|---|
| Contributors: | , |
| Corporate Contributors: | , |
| Format: | Electronic Video |
| Language: | English |
| Published: |
South Burlington, Vt. :
Annenberg/CPB,
©1992.
|
| Series: | Earth revealed ;
14. |
| Subjects: | |
| Genre/Form: | Digital video, Streaming multimedia, Video recordings for the hearing impaired |
| 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. |
|---|---|
| Item Description: | Video streaming is available for these titles. |
| Audience: | High school/college. 9-12+ |
| Participant or Performer: | Presented by James Sadd ; narrated by David Gilfillan. |
| Language: | Closed captioned. |
| Type of Computer File or Data Note: | Graphic file (Streaming video; 28 min.). |