Trough (geology)

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, while being less steep than a trench.

A trough can be a narrow basin or a geologic rift, often formed at the rim of a tectonic plate.

There are various oceanic troughs, troughs found under oceans; examples include

• the Cayman Trough^[1]
• the Nankai Trough
• the Rockall Trough and others along the rift of the mid-oceanic ridge,
• the Timor Trough.^[2]

See also

• Walker Lane

References

1. Einsele, Gerhard (2000). Sedimentary Basins: Evolution, Facies, and Sediment Budget (2nd ed.). Springer. p. 630. ISBN 978-3-540-66193-1.
2. "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.