A single layer with consistent characteristics is referred to as a stratum.
Layers of rocks are known as strata so the term for the layering would be 'Sedimentary Stratification'. Other related terms for 'layering' may include banding or lamination, if the layers occur within a single rock bed.
stratification: (noun) Formation or deposition of layers, as of rock or sediments
strata,compacion.and other stuff also when the sediments go down to the sea bed all the sediments make compacion then after a milion years.........walla! sedimental rocks
Stratification
foliated
strata
when an organism is trapped in sedimentary rock, it will die and the organism will slowly decay, but it won't decay altogether and you get a fossil. the older the fossil is the lower down it will be in a sedimentary layer. that's called superposition...
If the layer is of dead plants, it is a compressed layer known as a coal seam.
On the top
Unconformity
soil
The bottom layer of a sedimentary rock is called the basal layer. This layer is considered the coarsest in the rock.
Unconformity= break in sedimentary rock record
sedimentary layer ㅡㅡ
a layer of rock
when an organism is trapped in sedimentary rock, it will die and the organism will slowly decay, but it won't decay altogether and you get a fossil. the older the fossil is the lower down it will be in a sedimentary layer. that's called superposition...
This is Shale, a Sedimentary rock.
Unconformity
If the layer is of dead plants, it is a compressed layer known as a coal seam.
Sandstone is a sedimentary rock formed from layer upon layer of deposited sand which undergoes lithification.
Clay
On the top
because sedimentary rocks are on the top layer, while igneous rocks are were the magma is