The concept of caves being above ground may seem contradictory, as caves are typically associated with being underground. However, there are certain geological formations that can create caves above the surface. These types of caves are known as “rock shelters” or “overhangs.”
Rock shelters are formed when a portion of a cliff or rock face erodes away, leaving a hollowed-out space. Over time, this space can become larger and more complex, resembling a traditional cave. Rock shelters can be found in various types of rock formations, including limestone, sandstone, and granite.
One of the key factors in the formation of rock shelters is the presence of a resistant layer of rock above a softer layer. As the softer layer erodes away due to weathering and natural forces, the resistant layer remains intact, creating an overhanging structure. This process can take thousands or even millions of years to occur.
Rock shelters have been used by humans for thousands of years as shelter and for various cultural and religious purposes. They provide protection from the elements and can serve as a natural form of habitat for animals and plants. In some cases, archaeological discoveries have been made within rock shelters, providing valuable insights into past human civilizations.
In addition to rock shelters, there are other types of above-ground caves that exist. These include sea caves, which are formed by the erosive action of waves on coastal cliffs, and lava tube caves, which are created by flowing lava during volcanic eruptions.
Overall, while caves are commonly associated with being underground, there are instances where they can be found above ground. Rock shelters, sea caves, and lava tube caves are all examples of above-ground cave formations that showcase the wonders of nature’s geological processes.