Sedimentary rock can become metamorphosed after millions or hundreds of millions of years. Most geologic processes, like metamorphism, are extremely slow in human terms.
The metamorphic or igneous rock would have to be weathered and eroded until it is only particulates. Those particulates must then be forced together as a layer under gravitational pressure. These particulates will then become sedimentary rocks.
Most coal is sedimentary, but anthracite is bituminous coal that has undergone metamorphosis to become a metamorphic rock.
The igneous and metamorphic rock is weathered (broken into smaller pieces by physical and chemical weathering processes) and eroded (movement of particles by wind, water, ice, and gravity). The sediment particles created by these processes eventually reach a point of deposition where they become stationary long enough to be covered by additional sediments. They then become compacted from the weight of additional sediments above them. As they are compacted, cementing minerals form out of the remaining fluids between the sediment particles, gluing the particles together. At this point, the material has become sedimentary rock.
Quartzite is a metamorphic form of sandstone.
ErosionDepositionBurial and Cementing
ErosionDepositionBurial and Cementing
ErosionDepositionBurial and Cementing
what processes must sedimentary rock go through to become a metamorphic rock
Erosion Deposition Burial and Cementing
what processes must sedimentary rock go through to become a metamorphic rock
ErosionDepositionBurial and Cementing
Sedimentary rock can become metamorphosed after millions or hundreds of millions of years. Most geologic processes, like metamorphism, are extremely slow in human terms.
A pre-existing, igneous, sedimentary and metamorphic rock.
The metamorphic or igneous rock would have to be weathered and eroded until it is only particulates. Those particulates must then be forced together as a layer under gravitational pressure. These particulates will then become sedimentary rocks.
A sedimentary rock is formed when an igneous rock is subjected to weathering, erosion, compaction, and cementation!
The only way a metamorphic rock can become a sedimentary rock is if it is eroded and the pieces settle in a body of water and eventually become sedimentary rock. A whole piece of metamorphic rock is never going to become , by itself, a piece of sedimentary rock.