A __________ is a remnant of a layer of erosion-resistant cap rock supported by a slender column of less resistant rock.

Question

Quizplus · Accepted Answer

A pedestal rock is a remnant of a layer of erosion-resistant cap rock supported by a slender column of less resistant rock. The cap rock protects the column from wind and water erosion, leaving a pedestal-like structure. Yardangs are long, wind-eroded ridges that resemble sandstone blades, blowout depressions are low spots on a surface formed by the removal of sediment by wind, and rock varnish is a dark, shiny coating that forms on rocks due to chemical weathering.

A __________ Is a Remnant of a Layer of Erosion-Resistant