IMAGES: Geoscience Slide Show

Science  18 Apr 2003:
Vol. 300, Issue 5618, pp. 399
DOI: 10.1126/science.300.5618.399c

Examine fossilized Permian millipede tracks from the Grand Canyon, parse Native American petroglyphs, or spy on an advancing glacier—all by flicking through this collection of more than 16,000 earth science pictures from the U.S. Geological Survey. Along with stacks of historical photos dating back to 1868 and pretty shots from national parks, the site offers plenty of free, high-resolution images useful for researchers. For instance, you can track the geological changes at Mount St. Helens with a gallery of pictures taken before, during, and after the eruption in May 1980. Another collection captures the damage from some 40 earthquakes around the world, including the 1989 temblor in Northern California.

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