Site Type: | Inland exposure | Site Status: | TBC | Council area: | Causeway Coast & Glens Borough Council | Grid Reference: | C678069,C668068 | Bing maps: | 54.9056,-6.943 | Google maps: | 54.9056,-6.943 | Rocks |
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Rock Age: | Quaternary | Rock Type: | Gravel, Sand | Interest |
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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. |
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