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To metamorphose shale into slate you require a regional metamorphic environment which reaches temperatures of between 400-600oC and pressures of between 3-4 Kilo-bars (a burial depth of about 18 Km). The name of this sort of metamorphism is 'greenschist facies' with a 'Barovian' mechanism.
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What rock was once shale?
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.
What was slate before being metamorphosed?
Slate was originally a sedimentary rock called shale before undergoing metamorphism. Shale is a fine-grained rock formed from the compaction of mud and clay particles. Through the process of metamorphism, the shale is subjected to heat and pressure, which transforms it into slate.
How can shale be turned into slate?
Shale can be turned into slate through metamorphism, which involves applying heat and pressure to the shale over time. This process causes the minerals in the shale to recrystallize and align, creating the distinct layers, smooth texture, and foliation characteristic of slate.
What is the parent rock of slate?
The parent rock of slate is shale. Slate forms from the metamorphism of shale, which is a sedimentary rock composed of clay and silt-sized particles. The intense heat and pressure during metamorphism cause the clay minerals in shale to recrystallize into a dense, foliated structure characteristic of slate.
Was slate once shale?
Yes, slate was once shale. Shale is a sedimentary rock formed from the compaction of mud and clay, while slate is a metamorphic rock that forms from the metamorphism of shale. The process of metamorphism involves heat and pressure, which transforms the shale into slate by aligning the minerals and creating a foliation (layering) within the rock.
Is granite formed from the metamorphism of a shale?
No. The metamorphism of shale forms slate. Granite is formed when high-silica magma cools underground.
Shale is a sedimentary rock that can be metamorphosed into slate by what?
Shale can be metamorphosed into slate through the process of low-grade regional metamorphism, which involves heat and pressure causing the minerals within the shale to recrystallize into a fine-grained, foliated structure characteristic of slate.
What is a common parent rock for slate and gneiss?
Shale is a common parent rock for both slate and gneiss. Slate forms from the metamorphism of fine-grained sedimentary rocks like shale, while gneiss forms from the metamorphism of various rock types including shale.
What is the process involved in the formation and destruction of slate?
Slate is formed from shale through a process called metamorphism, which involves heat, pressure, and recrystallization of minerals. During metamorphism, the clay minerals in shale recrystallize to form mica, giving slate its characteristic texture. Slate can be destroyed through weathering and erosion, breaking it down into smaller particles and ultimately returning it to the sedimentary cycle.
How is metamorphic slate from sedimentary shale?
Metamorphic slate forms from sedimentary shale through the process of metamorphism, where the shale is subjected to high heat and pressure deep within the Earth's crust. This causes the minerals in the shale to recrystallize and align in a parallel fashion, giving slate its characteristic layered appearance and smooth texture.
What causes shale to turn into slate?
Shale turns into slate through a process called metamorphism, where heat and pressure transform the shale's minerals into new minerals like mica and chlorite. This process also causes the shale's original clay minerals to recrystallize, making it more compact and giving it a foliated texture characteristic of slate.
What Metamorphic rock is the result of lowest level of compaction applied to shale?
Slate is the product of low grade metamorphism of shale.
