While attempting to sample an outcrop of hydrothermally altered lava, the view changed rapidly (over a 2-min time span) from good visibility (left) to chunks of rock, sulfur and ash totally obscuring the outcrop from our view (right side). The outcrop is ~16 inches high (~40 cm). Image courtesy of Submarine Ring of Fire 2004 Exploration, NOAA Vents Program.
Related Links
