as if caused by some secret volcanic agency. Hence it may be presumed that a strong current of sulphureted hydrogen gas is generated, which combines with the oxyd of copper of the sheathing ...

Volcanologist Tobias Fischer (University of New Mexico, USA) samples gases emitted from a sulfur-caked fumarole on Póas volcano in Costa Rica, one of the 15 volcanoes in DCO's DECADE gas ...

A volcano is an opening in the Earth’s crust, which allows hot magma, ash and gases to escape from below the surface. I’ve been asked by my fellow explorers to get some rock samples from Mount ...

The origin of oxygen has long been a matter of debate among scientists. A recent study suggests that volcanoes may have a much larger role in the process than previously thought. A team of ...