a layer of rock
sedimentary layer ㅡㅡ
A single layer of sedimentary rock is called a "bed." Beds can vary in thickness and can be identified based on their distinct characteristics such as composition and sedimentary structures.
The youngest layer of sedimentary rock is typically found at the top of a sedimentary rock sequence, as it is the most recently deposited layer. This layer is usually exposed on the Earth's surface, such as in river valleys or coastal areas, where erosion may have removed older layers above it.
Unconformity
Clay
This is Shale, a Sedimentary rock.
They are called sedimentary rocks.
the sedimentary layer of warm lakes and ponds.
soil
Sedimentary rock formations are those which are formed by layer upon layer of sediment being laid down by natural forces. It is the stone in which history is hidden.
Sedimentary means formed of sediment. Here are some sentences.The sedimentary rock had worn away, revealing the layer beneath.You can often find fossils in sedimentary layers.We studied the sedimentary process in geology.
It is fairly easy to determine the age of lava or volcanic ash using radiometric dating, but much harder with sedimentary rock. But, if a layer of sedimentary rock is in between two layers of volcanic rock, then we know if had to have formed after the first layer and before the second one. If we know how old the volcanic layers are, then we have a general idea of how old the sedimentary layer is as well.