Files in this item
Scottish landform examples 45 : Sgriob na Caillich: a landslide-sourced medial moraine on the Isle of Jura
Item metadata
dc.contributor.author | Ballantyne, Colin K. | |
dc.contributor.author | Dawson, Alastair G. | |
dc.date.accessioned | 2020-09-17T23:38:55Z | |
dc.date.available | 2020-09-17T23:38:55Z | |
dc.date.issued | 2019-09-18 | |
dc.identifier.citation | Ballantyne , C K & Dawson , A G 2019 , ' Scottish landform examples 45 : Sgriob na Caillich: a landslide-sourced medial moraine on the Isle of Jura ' , Scottish Geographical Journal , vol. 135 , no. 1-2 , pp. 139-149 . https://doi.org/10.1080/14702541.2019.1669812 | en |
dc.identifier.issn | 1470-2541 | |
dc.identifier.other | PURE: 262530710 | |
dc.identifier.other | PURE UUID: 6c9d1286-a3df-49f0-a699-e28fb892f2ac | |
dc.identifier.other | RIS: urn:91A71F69D34BB2B7515C09342FBB3B17 | |
dc.identifier.other | Scopus: 85073590175 | |
dc.identifier.other | WOS: 000486890700001 | |
dc.identifier.uri | https://hdl.handle.net/10023/20642 | |
dc.description.abstract | Medial moraines deposited by former glaciers and ice sheets are rare in Scotland. The most prominent example is the Sgriob na Caillich moraine, which consists of two to four parallel belts of angular quartzite boulders that extend northwestwards for over 3.5 km from the SW flank of Beinn an Oir on the Isle of Jura. The boulder belts extend to within 300 m of the present coastline, where they are truncated by a low bluff and raised marine terrace. The source of the moraine coincides with bedrock gullies and cliffs that represent the scars of former rock-slope failure(s), indicating that the moraine debris was sourced by one or more rockfalls or rockslides onto the ice surface after Beinn an Oir had emerged from the thinning ice cover as a nunatak. Exposure dating of boulders on the moraine indicate that it formed at 16.6 ± 0.8 ka, consistent with the timing of ice-sheet retreat in this sector. The alignment of the moraine indicates ice-margin retreat to the SE; as regional ice-sheet retreat across the adjacent offshore shelf was to the NE, this anomaly implies that a residual icefield became stranded on Jura during ice-sheet retreat. | |
dc.format.extent | 11 | |
dc.language.iso | eng | |
dc.relation.ispartof | Scottish Geographical Journal | en |
dc.rights | Copyright © 2019 Royal Scottish Geographical Society. This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the author created accepted manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1080/14702541.2019.1669812 | en |
dc.subject | Medial moraines | en |
dc.subject | Rockfall | en |
dc.subject | Rock-slope failure | en |
dc.subject | Last Scottish Ice Sheet | en |
dc.subject | Isle of Jura | en |
dc.subject | G Geography (General) | en |
dc.subject | NDAS | en |
dc.subject | SDG 14 - Life Below Water | en |
dc.subject.lcc | G1 | en |
dc.title | Scottish landform examples 45 : Sgriob na Caillich: a landslide-sourced medial moraine on the Isle of Jura | en |
dc.type | Journal article | en |
dc.description.version | Postprint | en |
dc.contributor.institution | University of St Andrews. School of Geography & Sustainable Development | en |
dc.identifier.doi | https://doi.org/10.1080/14702541.2019.1669812 | |
dc.description.status | Peer reviewed | en |
dc.date.embargoedUntil | 2020-09-18 |
This item appears in the following Collection(s)
Items in the St Andrews Research Repository are protected by copyright, with all rights reserved, unless otherwise indicated.