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graben




graben and horst
Credit: US Geological Survey
An elongated, relatively narrow area of rock that has slid down between parallel faults. Unless erosion wears these down to its level, the result is a rift valley.

The Basin and Range province in Utah and Nevada consists of grabens and horsts which form sedimentary basins and mountain ranges.


Related categories

   • GEOGRAPHY
   • GEOLOGY AND PLANETARY SCIENCE

Source: U.S. Geological Survey