Which Rocks Are Formed from Hardened Lava That Flowed from Volcanoes?

Answer

The extrusive igneous rocks are formed from the hardened lava that flowed from volcanoes. Examples of extrusive igneous rocks are obsidian, basalt, pumice, and rhyolite.
Q&A Related to "Which Rocks Are Formed from Hardened Lava That..."
Igneous rocks like basalt are formed from volcanic lava.
http://wiki.answers.com/Q/Which_rocks_are_formed_f...
Igneous Rocks are formed by heat from magma. There are
http://www.chacha.com/question/what-is-the-name-of...
Igneous rocks are rocks that are formed by the cooling and solidification of molten rock. These are rocks that flows from volcanoes. report this answer. Updated on Thursday, February
http://www.kgbanswers.com/rewhich-rocks-are-formed...
Agreed with above. Mafic lava is a iron-rich, low-viscosity rock which cools into basalts after erupting. They are typically found on shield volcanoes originating at "hot spots
http://answers.yahoo.com/question/index?qid=200911...
About -  Privacy -  AskEraser  -  Careers -  Ask Blog -  Mobile -  Help -  Feedback © 2014 Ask.com