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, troughs found under oceans.
Satellite image of the Cayman Trough
Bathymetric features of the Rockall Trough northwest of Scotland and Ireland
Topographic map of Zealandia with New Caledonia Trough
Examples
- Benue Trough
- Cayman Trough[1]
- Kings Trough
- Nankai Trough
- New Caledonia 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]
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See also
References
- Einsele, Gerhard (2000). Sedimentary Basins: Evolution, Facies, and Sediment Budget (2nd ed.). Springer. p. 630. ISBN 978-3-540-66193-1.
- Robert Dinwiddie: Ocean_ The World's Last Wilderness Revealed. Dorling Kindersley, London 2008, S. 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.
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