Wikimedi'Òc

Amboy volcanic field - strandlines on basalt flow - closeup.JPG - Mav

Amboy volcanic field - strandlines on basalt flow.JPG - Mav

USMC-01757.jpg - Slick-o-bot

Quenched blobs in pinkish-reddish porphyritic dacite (Upper Pleistocene, 27 ka; Devastated Area, Lassen Volcano National Park, California, USA) 5.jpg - Ser Amantio di Nicolao

Hot Creek Rhyolite Flow (Pleistocene, 288 or 333 ka; Hot Creek Gorge, Long Valley Caldera, California, USA) 10.jpg - Ser Amantio di Nicolao