Erosion has rounded the cliff face of Wave Rock, undercut its base, and left a rounded overhang.
Wave Rock in Western Australia is a prime example of how weathering and water erosion can dramatically shape geological formations over time. The following details how erosion specifically has affected Wave Rock:
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Rounding of the Cliff Face: Erosion, primarily through the action of water and wind, has smoothed and rounded the once likely more angular cliff face. The constant exposure to these elements has worn away at the rock, creating its characteristic wave-like shape.
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Undercutting the Base: Water erosion, in particular, has played a significant role in undercutting the base of Wave Rock. Water runoff, flowing down the rock face, concentrates at the base. Over extended periods, this water erodes the rock at the base faster than higher up.
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Rounded Overhang: The combined effects of the rounding of the cliff face and the undercutting of the base have resulted in a rounded overhang. This overhang is a defining feature of Wave Rock and is a direct consequence of the differential erosion rates across the rock structure. The top portion erodes more slowly, creating the overhang as the base erodes more rapidly.
In essence, Wave Rock's unique shape is a testament to the long-term impact of erosion, which has sculptured this natural wonder through gradual but continuous processes.