Volcanoes are not fed by liquid magma formed in large, underground caves called ‘magma’ chambers; instead, they are fed by so-called ‘mush’ reservoirs — areas of mostly solid crystals with magma in the small spaces between the crystals, according to new research from Imperial College London and the University of Bristol, UK. Jackson et al propose that magma storage occurs by reactive melt flow in long-lived mush reservoirs, rather than...
