What’s being erupted at El Hierro
The eruption at El Hierro in the Canary Islands is taking place under the sea, but pictures from the scene are starting to show products of the eruption floating to the surface. But what are they? Read on for a crash cause in volcanic rocks that can float.
The undersea eruption has manifested at the surface in the form of a plume of dirty brown water.
|Experimental Crystallization of a High-K Arc Basalt: the Golden Pumice, Stromboli Volcano (Italy)|
The near-liquidus crystallization of a high-K basalt (PST-9 golden pumice, 49·4 wt % SiO2, 1·85 wt % K2O, 7·96 wt % MgO) from the present-day activity of Stromboli (Aeolian Islands, Italy) has been experimentally investigated between 1050 and 1175°C, at pressures from 50 to 400 MPa, for melt H2O concentrations between 1·2 and 5·5 wt % and ΔNNO ranging from −0·07 to +2·32.
Photo of Alaskan scoria.