Different erosional features can lead to layers of rock flaking off.
In layered sedimentary rocks this is usually the case when some of the layers are less resistant against weathering (e.g. when the grains are cemented by carbonate which is dissolved by acid rain). One can often see that phenomenon on old sandstone buildings.
Also igneous rocks show the effect of layers flaking off the surface. This may be related to thermal expansion and contraction working mostly on the outer part of large boulders. It might as well have something to do with the structure of the rock inherited from its crystallization and residual stresses and the depth that water can penetrate and weather the rock.
Another answer:
The flaking off in layers of rocks is called exfoliation. This usually occurs in deserts and is caused by changes in temperature.
you're totally from my science class
A change in pressure once exposed at the surface
Water gets into tiny cracks in rock and when it freezes water expands and causes the cracks to widen. Eventually the rock cracks and or pieces flake off, Over a long time this process repeats and breaks down the rock into ever small pieces.
Exfoliation
They are called Micas. Some names for Micas are called, Muscovite, Biotite, and Phlogopite.
Chemical.
you're totally from my science class
Exfoliation
A change in pressure once exposed at the surface
Water gets into tiny cracks in rock and when it freezes water expands and causes the cracks to widen. Eventually the rock cracks and or pieces flake off, Over a long time this process repeats and breaks down the rock into ever small pieces.
Exfoliation
It can be defined as erosion. That is the only one I can think of...
No, the gypsum based compuond will not have proper adherance and will crack and flake off.
the process of breaking off small pieces from foods to check if it is done is a flake!
The epidermis is made of of many layers, most of which are alive; every day some cells on the very outermost layer will die and flake off. These are referred to as "skin flakes." You cannot bring them back to life with lotions or potions, but you can make them juicier and stickier with various creams and lotions. sooner or later they will flake off anyway.
If water is caught in cracks in the rock and it freezes it expands. This causes the rock to chip off.
Onion skin weathering is a Geological process that happens mainly in deserts. As the rock heats up and expands by day, and cools and contracts by night, stress is often exerted on the outer layers. The stress causes the peeling off of the outer layers of rocks in thin sheets. Though this is caused mainly by temperature changes, thermal expansion is enhanced by the presence of moisture. Onion skin weathering has to do with rocks mostly in the desert. It is when the hot temperature of the day is then reduced to a cold temperature at night. This change in temperature causes layers of the rock to peel off like onion skin coming off. Therefore it is called onion skin weathering. Conclusion: Onion skin Weathering is when a rock heats up and expands (mostly deserts) And at night it cool and contract and layers of skin peels off