Earth Science Conservation Review
| Faughan and Dungiven Basins - Banagher | Londonderry |
| Site Type: | Inland exposure |
| Site Status: | TBC |
| Grid Reference: | C678069,C668068 |
| Google maps: | 54.9056,-6.943 |
| Rocks | |
|---|---|
| Rock Age: | Quaternary |
| Rock Type: | Gravel, Sand |
| Interest | |
| Other interest: | Glacio-fluvial sediment, deltaic foresets |
Summary of site:
On either side of the Owenrigh River where it emerges from its confined valley below Mount Prospect, there is a substantial sediment body almost 60m thick. The sands and sandy gravel beds have internal inclines (foresets) of around 18º, sloping to the north east. They were originally a single mass, now divided into two fragments by a meltwater channel and the modern river. A ridge 500m long extends north-west/south-east from Banagher Church into these deposits.
When the last ice sheets were retreating, ice tunnels fed sediments in torrents of fast-flowing meltwater into a lake here, confined behind an ice dam. The lake surface was about 122m above modern sea level.
When the last ice sheets were retreating, ice tunnels fed sediments in torrents of fast-flowing meltwater into a lake here, confined behind an ice dam. The lake surface was about 122m above modern sea level.
| Enlander, I., Dempster, M. & Doughty, P., 2024. Faughan and Dungiven Basins - Banagher, County Londonderry, site summary. [In] Earth Science Conservation Review. https://www.habitas.org.uk/escr/summary.php?item=501. Accessed on 2024-12-26 |
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