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'''Lava''' is molten rock from the [[Earth|Earth's]] core.  Lava's differ in chemical composition, but most forms of lava average 3000-4000 degress [[fahrenheit]].  Lava's can be rhyolitic in composition.   Lava has only been observed on earth and other planets to emanate from a planetary core through ruptures in the planetary crust.

'''Lava''' is molten rock from the [[Earth|Earth's]] [[mantle]].  Lavas differ in chemical composition, but most forms of lava average 3000-4000 degrees [[Fahrenheit]].  Lavas are classified into the following categories based on their chemical composition: [[Basalt]] (Hawaiian volcanoes), [[Andesite]] ([[Andes]] mountains), [[Dacite]] ([[Mt. St. Helens]]), or [[Rhyolite]] ([[Yellowstone]] Caldera).

 

[[category:geology]]

[[category:geology]]