Surface depression refers to a localized area on the Earth's surface that is lower in elevation compared to its surrounding terrain. This phenomenon can occur due to various natural processes, such as erosion, subsidence, or the collapse of underground cavities. Surface depressions can take the form of sinkholes, basins, or valleys, and they can impact local ecosystems and land use. In some cases, they may also influence hydrology by affecting water drainage and accumulation.
A depression on the surface of the Earth created by groundwater is known as a cone of depression.
A basin is a depression in the earth's surface that can be dry or filled with water.
a valley
A slight depression in the smoothness of a surface.
The anterior depression on the scapula is called the subscapular fossa. It is located on the anterior surface of the scapula and serves as the attachment site for the subscapularis muscle.
highlands
The depression on the surface of a bone is called a fossa. It is a shallow, basin-like structure that typically serves as an attachment site for muscles or tendons.
rille
a valley
A sulcus is a depression or fissure in the surface of the brain.
A depression on the surface that looks like a channel.
A saucer-like depression on the surface of the Moon is called a lunar crater. These are formed by the impact of meteoroids, asteroids, or comets hitting the Moon's surface. They come in various sizes and shapes, ranging from small to large.