Drillers break into magma chamber

It has been described as a geologist's dream - a unique opportunity to study up close the volcanic processes that built the Earth's continents. Drillers looking for geothermal energy in Hawaii have inadvertently put a well right into a magma chamber.
Molten rock pushed back up the borehole several metres before solidifying, making it perfectly safe to study. Magma specialist Bruce Marsh says it will allow scientists to observe directly how granites are made.
http://news.bbc.co.uk/1/hi/sci/tech/7780873.stm