fault
The ozone layer is breaking due to CFC's. They are man created ODS.
The bottom layer of a sedimentary rock is called the basal layer. This layer is considered the coarsest in the rock.
The lithosphere is the physical layer of hard brittle rock. The remainder of the mantle that is not contained in the lithosphere is the layer of ductile rock.
rock layering is where you have one layer of old rock them a newer layer then an other newer layer.
a layer of rock
disconformitiesangular unconformitiesnonconformities
The bottom layer of rock in a geologic sequence is usually called the basement layer.
When magma intrudes parallel to another rock layer, the formation is called a "sill." Sills are typically horizontal or gently inclined and form when magma forces its way between existing rock layers without breaking through to the surface. This process can create distinct mineral compositions and textures within the surrounding rock.
Unconformity
An upwards arching layer of rock is known as an anticline.
Superposition is the theory that the rock layer that is on top is the youngest and the layer of rock on the bottom is the oldest.
The layer that is partly weathered rock is called the saprolite layer. This layer is between the unaltered rock below and the soil layer above. Through weathering processes, the saprolite becomes broken down and forms the basis for soil formation.