Earth Science Conservation Review
| Faughan and Dungiven Basins - Derrynaflaw | Londonderry |
| Site Type: | Inland exposure |
| Site Status: | TBC |
| Grid Reference: | C649099 |
| Google maps: | 54.93293,-6.98752 |
| Rocks | |
|---|---|
| Rock Age: | Quaternary |
| Rock Type: | Gravel, Sand |
| Interest | |
| Other interest: | Glacio-fluvial sediment, deltaic foresets |
Summary of site:
A square kilometre of largely worked-out sands and gravels on the south-east foot slopes of Altahullion Hill still retains evidence of a delta with its surface 142m above present sea level. Flow structures in the sands indicate a water source to the south. Since its deposition it has been deeply dissected by a meltwater channel to form Altmover Glen, carving the delta into two parts.
| Enlander, I., Dempster, M. & Doughty, P., 2026. Faughan and Dungiven Basins - Derrynaflaw, County Londonderry, site summary. [In] Earth Science Conservation Review. https://www.habitas.org.uk/escr/summary.php?item=500. Accessed on 2026-07-25 |
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