High pressure can cause the formation of the metamorphic rock slate from the sedimentary rock shale.
slate
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Shale is a sedimentary rock that can transform into other types of rock through the process of metamorphism. Under heat and pressure, shale can turn into slate, while further metamorphism can result in the formation of phyllite, schist, and gneiss.
Slate is already a metamorpic rock. It is formed by the action of heat and pressure on shale. Further metamorphism may produce phyllite.
Rock metamorphism.
Slate is metamorphosed shale.
Metamorphic rocks
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Shale and granite are sedimentary rocks. After thousands of years under pressure and heat, they can turn into phyllite rock.
Shale rocks turn into clay. The pressure make shale into clay.
Clays would become shale, then metamorphose into slate with heat and pressure.
pressure
it becomes a shale rock. There is no way that chalk, a form of limestone, can be metamorphosed into shale. It will like limestone change to marble.
Shale is a sedimentary rock that can transform into other types of rock through the process of metamorphism. Under heat and pressure, shale can turn into slate, while further metamorphism can result in the formation of phyllite, schist, and gneiss.
Slate is already a metamorpic rock. It is formed by the action of heat and pressure on shale. Further metamorphism may produce phyllite.
Rock metamorphism.
It can, indirectly. Shale is a sedimentary rock. Like many rocks, gneiss can be weathered down to very fine particles to the point that it becomes clay or silt. Those particles can then settle on the bottom of a body of water as mud. Under the pressure of burial, that mud can become shale. However, gneiss can also form from shale. Under long exposure to enormous heat and pressure shale will becomes slate, further heating and pressure will turn slate into phyllite, phyllite into schist, and schist into gneiss.
Slate is metamorphosed shale.
Metamorphic rocks