Depression (geology)

In geology, a depression is a landform sunken or depressed below the surrounding area. Depressions form by various mechanisms.

: a depression created by wind erosion typically in either a partially vegetated sand dune ecosystem or dry soils (such as a post-glacial loess environment).^[1]

Blowout

: a depression carved by erosion by a glacier.

Glacial valley

: a depression carved by fluvial erosion by a river.

River valley

Area of caused by the collapse of an underlying structure, such as sinkholes in karst terrain.

subsidence

: an endorheic depression generally containing a persistent or intermittent (seasonal) lake, a salt flat (playa) or dry lake, or an ephemeral lake.

Sink

: a shallow depression or basin eroded into flat or gently sloping, cohesive rock.^[2]

Panhole

Erosion-related:

Collapse-related:

Impact-related:

Sedimentary-related:

Structural or tectonic-related:

Volcanism-related:

Aral–Caspian Depression

Baetic Depression

Bodélé Depression

Caspian Depression

Danakil Depression

Eider-Treene Depression

Georgia Depression

Giurgeu-Brașov Depression

Godzareh Depression

Huancabamba Depression

Kara Depression

Karashor Depression

Kuma–Manych Depression

Kuznetsk Depression

Mari Depression

Mourdi Depression

Qattara Depression

Regen Depression

Ronda Depression

Táchira Depression

Tunkin Depression

Turan Depression

Turpan Depression

Tuva Depression

Upemba Depression

Weser Depression

Wittlich Depression

Wümme Depression

Cryptodepression

List of places on land with elevations below sea level

Ponor