An accretion of iron molecules leaves a bizarre pattern in the sandstone. For larger image, click here. Photo by Jeff Mitton. The multitude of parks on the Colorado Plateau is testimony of our ...
The multitude of parks on the Colorado Plateau is testimony of our fascination with red rock country: Colorado National Monuments, Arches National Park, Canyonlands National Park, Capitol Reef ...
Along parts of Spain’s Costa Brava, sandstone cliffs display honeycomb-like patterns—small pits, rounded cavities, and tiny chambers arranged across the rock fa ...
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