The chemical composition of gases emitted from volcanoes – which are used to monitor changes in volcanic activity – can change depending on the size of gas bubbles rising to the surface, and relate to the way in which they erupt. The results, published in the journal Nature Geoscience, could be used to improve the forecasting of threats posed by certain volcanoes.
The asteroid that slammed into the ocean off Mexico 66 million years ago and killed off the dinosaurs probably rang the Earth like a bell, triggering volcanic eruptions around the globe, according to a multi-disciplinary team of scientists.
An international team of geoscientists have demonstrated how magma-filled cracks form and spread underneath volcanic systems, such as the one extending from Iceland’s Bárðarbunga volcano to an eruptive site which has now been active for more than 100 days.
A team of researchers from Cambridge’s Department of Earth Sciences have recently returned from Iceland where, thanks to a bit of luck, they have gathered the most extensive dataset ever from a volcanic eruption, which will likely yield considerable new insights into how molten rock moves underground, and whether or not it erupts.
Cambridge scientists and PhD students are at the forefront of monitoring the activity of the Bárðarbunga volcano in Iceland. The research group, led by Professor Bob White of the Department of Earth Sciences, is monitoring the ongoing massive volcanic intrusion through its array of seismic instrumentation - never before has such an intrusion been so well documented. The data they gather is likely to yield considerable new insights into how molten rock moves underground, and whether or not it erupts. Here, Professor White outlines the team’s ongoing work in Iceland.