👉 In the field of geology, a "stonelayer" is defined as a layer of rock or sediment that is composed primarily of minerals and rocks with fine-grained materials such as sand, silt, and clay. This type of rock is typically older than other types of rock and is more resistant to erosion by water and wind. Stonelayers are often found in areas where the underlying sediments have been eroded away or where there has been a long period of time since the