Haha – dragons! No, not really, but that would be cool… If you imagine a tree with no dirt around it’s roots (try pulling up a weed and looking at the roots), this is a bit like a volcano. Actually, something like a turnip would be good – the bit you eat would be like the magma chamber… The roots are tiny little streams of magma heading upwards and joining together. Sometimes these jet out to the side and they are called sills (if they are flat) and dykes (if they are upright). Exactly what all this looks like under each different volcano is very hard to tell, but we are getting a better picture all the time! I’d like to show you some pictures on the internet but they are all reeeeeeeaaaallly basic – and don’t help much. Lookng at a turnip is probably your best bet! 🙂
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