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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
- Einsele, Gerhard (2000). Sedimentary Basins: Evolution, Facies, and Sediment Budget (2nd ed.). Springer. p. 630. ISBN 978-3-540-66193-1.
- Dinwiddie, Robert et al. (2008) Ocean: The World's Last Wilderness Revealed, London, Dorling Kindersley, page 452.
- "Chapter II (Geology of Timor-Leste)". Atlas of mineral resources of the ESCAP region Volume 17 Geology and Mineral Resources of Timor-Leste (PDF). United Nations Economic and Social Commission for Asia and the Pacific. 24 December 2003. Archived from the original (PDF) on 20 May 2005.