Scanning Electron Microscope (SEM) image and elemental map of an alunite crystal found in the hydrothermal plume above NW Rota-1 volcano.

A scanning electron microscope (SEM) image and an elemental map of an alunite (a mineral) crystal found in the hydrothermal plume above NW Rota-1 volcano. The upper left box is the image. The remaining boxes are elemental maps of the elements indicated. The graph at the bottom of the image is a spot x-ray analysis of the particle. (Al stands for aluminum, Na is sodium, K is potassium, and S is sulfur.)

Related Links

Submarine Ring of Fire 2006

Submarine Ring of Fire 2006: Plumes

NOAA Ocean Explorer Gallery

Download high-resolution image (jpg, 184 Kb)