Within saprolite, spheroidal weathering often creates rounded boulders, known as cornerstones or woolsack, of relatively unweathered rock. Spheroidal weathering is also called onion skin weathering, concentric weathering, spherical weathering, or woolsack weathering. Because of their lightweight shapes, they remain in the same place.
How does spheroidal weathering occur?
Spheroidal weathering is also a process of cracking and splitting off curved layers from a generally spherical boulder but on a much smaller scale. It occurs when a rectangular block is weathered from three sides at the corners and from two sides along its edges.
Learn more about spheroidal weathering here: brainly.com/question/829782
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