Earthwatcher's photos with the keyword: lava

Originally uploaded for the Guesswehere UK group. This is the hyaloclastite front formed by the Upper Miller's Dale Lava where it originally flowed into the sea, exposed in Litton Mill Railway cutting on the Monsal Trail in the Peak District National Park, Derbyshire.

A photo of the rather faded English Nature information board explaining the formation of the hyaloclastite where the Upper Miller's Dale lava flowed into the Dinantian sea in Lower Carboniferous times.

Originally posted for the Guesswhere UK group: where is Jan and what is she doing? This is the Cavedale Lava, in the upper part of Cavedale, near Castleton, Derbyshire. Jan is measuring/demonstrating the angles of the hexagonal columnar jointing in the lava flow. See where this picture was taken. [?]