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**Dayreive** · 08-02-2007, 09:56 PM

Hawaiian volcanoes erupt basaltic lava from deep within the earth. This type of lava is relatively fluid and not full of gas so it flows out of the volcano easily.

Continental volcanoes, like those along the Rockies and Andes erupt lava which is basically remelted crust and is sticky and full of gas - so it erupts violently throwing debris high into the air, blotting out the sun and covering everything in a gritty mess.

So there you have it - it's all down to the body chemistry of the volcano.

08-02-2007, 09:56 PM	#11
Dayreive Join Date Nov 2005 Posts 354 Senior Member	Hawaiian volcanoes erupt basaltic lava from deep within the earth. This type of lava is relatively fluid and not full of gas so it flows out of the volcano easily. Continental volcanoes, like those along the Rockies and Andes erupt lava which is basically remelted crust and is sticky and full of gas - so it erupts violently throwing debris high into the air, blotting out the sun and covering everything in a gritty mess. So there you have it - it's all down to the body chemistry of the volcano.
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