igneous rock
It must erode into sediment and then be compressed to form sedimentary rock.
They are not alike: magma is the semi-molton rock layer that forms the mantle. Examples of sediment are the silt (mud) that has dropped out of water to settle on the bottom of rivers or sea; and layers of slate (compressed silt), limestone (the remains of microscopic shelled creatures) and sandstone (compressed sand grains).
Is it sediment being compressed until it becomes rock
evaporites
It is a cast fossil.
No. Sedimentary rock forms when broken bits of rock get compressed and cemented together. Igneous or "magma" rock forms when molten rock cools and solidifies, essentially freezing.
Sediment. Sediment is eroded igneous, metamorphic or other sedimentary rock. This is all part of the rock cycle.
Sedimentary rock.
It must erode into sediment and then be compressed to form sedimentary rock.
They are not alike: magma is the semi-molton rock layer that forms the mantle. Examples of sediment are the silt (mud) that has dropped out of water to settle on the bottom of rivers or sea; and layers of slate (compressed silt), limestone (the remains of microscopic shelled creatures) and sandstone (compressed sand grains).
Is it sediment being compressed until it becomes rock
As more sediment is added, it is compressed and hardens into rock layers.
no they do not
Metamorphic rock.
it forms a sedimentary rock
nothing
Sediment forms which may ultimately be deposited and lithify into sedimentary rock.