Trough (geology)

Short description: Linear structural depression that extends laterally over a distance

Satellite image of the Cayman Trough Bathymetric features of the Rockall Trough northwest of Scotland and Ireland

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[1]
* 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[2] in the Red Sea
* Timor Trough[3]

## See also

* Walker Lane
* Oceanic basin

## References

1. ↑ Einsele, Gerhard (2000). Sedimentary Basins: Evolution, Facies, and Sediment Budget (2nd ed.). Springer. p. 630. ISBN 978-3-540-66193-1.
2. ↑ Dinwiddie, Robert et al. (2008) Ocean: The World's Last Wilderness Revealed, London, Dorling Kindersley, page 452.
3. ↑ "Chapter II (Geology of Timor-Leste)". Atlas of mineral resources of the ESCAP region Volume 17 Geology and Mineral Resources of Timor-Leste. United Nations Economic and Social Commission for Asia and the Pacific. 24 December 2003. http://www.unescap.org/esd/publications/AMRS17.pdf.

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