Trough (geology)



In geology, a trough is a linear structural depression that extends laterally over a distance. Although it is less steep than a trench, a trough can be a narrow basin or a geologic rift. These features often form at the rim of tectonic plates.

There are various oceanic troughs on the ocean floors.

Examples of oceanic troughs

 * Benue Trough
 * Cayman Trough
 * Hesperides Trough
 * Kings Trough
 * Mariana Trough
 * Nankai Trough
 * Northumberland Trough
 * Okinawa Trough in the East China Sea
 * Rockall Trough and others along the rift of the mid-oceanic ridge
 * Salton Trough
 * South Shetland Trough
 * Suakin Trough in the Red Sea
 * Timor Trough