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Metamorphism is the name of the process (of heat and pressure) that causes the chemical; and therefore mineralogical; properties of a rock to change. Marble (changed from limestone) may represent the lowest grade of metamorphism, whilst the schists are a more common higher grade of that same process. At the extreme, the rocks will melt, but that is considered beyond the definition of metamorphism, for it will change the actual chemical nature of the rock. So - it is the application of heat and pressure; perhaps accompanied by shear; that are the metamorphic change agents. Usually caused by deep burial.
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What is the only kind of rock that can form directly from magma?
By definition. A sedimentary rock is formed from sediments, chemical, organic, or clastic. A metamorphic rock has undergone a change in mineral alignment or mineral composition due to heat and/or pressure. An igneous rock forms from solidification of magma via cooling.
How does the metamorphic rock change into a igneous rock?
metamorphic rock melts into magma and volcano erupts. lava hardens and cools
What causes waves in the rock layers?
depending on the rock. sedimentary rocks are formed under water and may have water wave ripples. metamorphic rock has been pressed into waves. igneous rocks flowed in waves
How does a garnet form?
Garnets are formed inside metamorphic rock, which is rock that has been changed by some force. This force also helps to form the garnet, and usually involves heat or pressure.
What type of rock always forms directly from another rock?
Metamorphic. By contrast, igneous rocks form from lava or magma, and sedimentary rock form from sediment. Those things are formed from previous rocks, but constitute intermediate stages: igneous and sedimentary rocks are formed indirectly from previous rocks.
Metamorphic rock formed from sandstone?
Quartzite is a metamorphic rock formed from sandstone.
Rock formed by heat and pressure?
Metamorphic Rock
What type of rock was the metamorphic rock schist formed from?
Probably the metamorphic rock phyllite.
Type of rock formed by heating and squeezing other rocks?
metamorphic.
A metamorphic rock made from limestone?
Marble is the metamorphic rock formed from limestone. =)
How can a rock be transformed into a metamorphic rock?
Rock can be changed into metamorphic rock by heat and pressure.
Who is correct a metamorphic rock is formed from a sedimentary rock or a metamorphic rock can form from an igneous rock?
both are correct metamorphic rock can form from both.
What is slate formed by?
Slate is formed out of a sedimentary rock called Shale. It is a foliated metamorphic rock.
What kind of rock does a metamorphic rock start as?
Metamorphic rocks are formed from sedimentary rocks.
What is a metamorphic rock formed from a shale?
Slate. Slate is a low grade metamorphic rock derived from shale or mudstone.
Is slate a metamorphic rock which transforms from shale?
Slate is a metamorphic rock formed from the parent rock shale.
What kind of rock is formed with heat and pressure?
Metamorphic rocks, like slate or quartizite, or even diamonds.
