In the geological field, stratum is a term used to list the layers that a rock formation can have, as a product of years of sedimentation. Most of the rocks that have these peculiar characteristics are within the group of metamorphic, sedimentary and pyroclastic, which differ from the rest by being formed from other materials, whose origin is not directly with the new creation, such as mineral remains, settled sediment or volcanic ash, respectively. At first glance, you can see how the passage of time has significantly modified the structure of the stone, which presents different shades in its extension, ranging from the lightest brown to a gray with a slight touch of blue.
Sediment, for its part, is all the material that is in motion on the earth's surface and it is almost always a portion that belonged to a rock or some earth, which due to some climatic factor, began a long journey. After a while, it takes some stability and is deposited on an area that is very solid, such as a rock formation, and then over the centuries, it finally becomes part of where it decided to settle.
Likewise, water currents are an important part of the sedimentation process, because in places where there were previously somewhat strong liquid courses, it can be observed how it attracted different debris that settled over time, creating some sedimentary rocks.. However, the word stratum can also refer to the social class that a person belongs to, which is influenced by their capacity for economic production.
