Volcanoes - Lesson 5 - Part 5 of 7

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Uploaded by on Mar 8, 2008

Volcanoes - Lesson 5 -- part 5 of 7
•Illustration show main types of extrusive igneous rocks; Basalt, andesite, & rhyolite
•5 types in volcano locations along plates
•Basalt -- fluid ; Aa and Pahoehoe
•Temperature and silica
•Basalt erupted at mid-ocean ridges form pillow lava
•Pillow lava of NWT footage
•Dr Ridler talking about Pillow lava in NWT
•Cross-section of pillow lava
•Giants Causeway quick cooling of basalt; six sided structure

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  • Now i fully understand Volcanoes i can understand how the whole planet works

  • At 1:23 there is a skip. :(

    Thank you so much for uploading this program, it's helping my understanding a lot!

  • I'm watching this in Geography 100 right now. Geology?

  • where did u get this

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