Dinosaur killer found in volcanic bubbles

One of the chief suspects in the demise of the dinosaurs has been hiding inside rare time capsules.

A surge of volcanic activity around 65 million years ago could have triggered a mass extinction by pumping sulphur and chlorine into the atmosphere. But geologists were not sure that enough gas was released.

Now Stephen Blake and colleagues at the Open University in the UK have found rare glass inclusions in volcanic rocks in the Deccan Traps in India, which have been linked to the dinosaur extinction. These inclusions hold…