BERNHARD EDMAIER / SCIENCE PHOTO LIBRARY BERNHARD EDMAIER / SCIENCE PHOTO LIBRARY
Sandstone erosion. Aerial photograph showing sandstone erosion along vertical fractures. These fractures of solid rock are caused by tectonic forces acting on and within the Earth's crust. Sandstone (red) is a soft, sedimentary rock that is susceptible to erosional forces such as water, ice and wind. These erode the fractures to produce the rock formations seen. Photographed in the Valley of Fire State Park, Nevada, USA.
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