Thursday, August 14, 2008

Types of Lava

Lava is the molten rock thrown out by a volcano. The most common forms of lava are basalt, which is thin and runny, and cools to a heavy , black rock, and rhyolite, a thick, pale, biscuit-coloured lava. How a volcano erupts depends on the thickness of the lava.

Also Visit Darwin site.

1 comment:

Anonymous said...

your site is interesting to visit!!!!!
Have a look on my two sites too.......