1. Sedimentary will only change to metamorphic, not the other way around.
2. Sedimentary rock will change to metamorphic by means of heat and pressure.
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Metamorphic rocks can be changed into sedimentary rocks through the process of weathering, erosion, transportation, and deposition. In this process, the metamorphic rock is broken down into sediments through physical or chemical weathering and then transported by natural agents like water, wind, or ice to be deposited in layers. Over time, these sediments are compacted and cemented together to form a new sedimentary rock.
When mud from a lake bottom turns into a sedimentary rock, it undergoes compaction and cementation. To transform into a metamorphic rock, the sedimentary rock experiences heat and pressure deep within the Earth's crust, causing recrystallization and mineral changes. This process alters the sedimentary rock's original texture, structure, and mineral composition.
Sedimentary rock can be transformed into metamorphic rock through the process of metamorphism, which involves high temperature and pressure deep within the Earth's crust. This causes the minerals in the sedimentary rock to recrystallize and reorganize, resulting in the formation of a new rock with different properties. The original sedimentary layers may still be visible in the metamorphic rock, but they will have undergone significant changes.
The three classifications of rocks are igneous, sedimentary, and metamorphic. Igneous rocks form from the cooling and solidification of magma or lava. Sedimentary rocks are formed by the accumulation and lithification of sediments. Metamorphic rocks are formed from pre-existing rocks that undergo changes in response to heat, pressure, or chemically active fluids.
The three main types of rocks are igneous, formed from cooling lava or magma; sedimentary, formed from compressed layers of sediment; and metamorphic, formed from existing rocks that undergo high heat and pressure.
The rock that has been changed by extreme pressure or heat is called metamorphic rock. It can form from igneous, sedimentary, or existing metamorphic rocks that undergo changes in temperature and pressure deep within the Earth's crust. Examples of metamorphic rocks include marble, slate, and gneiss.