Late- and Post-Glacial Shorelines, and Ice Limits in Argyll and North-East Ulster

Synge, F. M.; Stephens, Nicholas

doi:10.2307/621679

Cited by 47 publications

(35 citation statements)

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“…A remarkable medial moraine deposited by the Devensian ice sheet occurs on Jura where it documents former northwesterly ice flow over the island (Dawson, 1979). Evidence of moraines and a possible minor readvance by Devensian ice on Islay occurs at Loch Indaal (Synge and Stephens, 1966;Peacock and Merritt, 1997). Areas of hummocky moraine have been mapped on Islay and Jura by McCann (1964), Dawson (1982) and Peacock (1984) and related to ice sheet recession from the islands.…”

Section: Northern and Central Scotlandmentioning

confidence: 97%

“…This period of ice-marginal stabilization was explained by Sutherland (1984) as a response to glacier recession into areas of shallow water over localized fjord sills. In the Oban area Synge (1966) and Synge and Stephens (1966) proposed a readvance or stillstand base upon landforms they called the Oban-Ford moraine. Gray and Sutherland (1977) later questioned the evidence of synchronicity for the Oban-Ford moraine, proposing instead brief and diachronous halts in overall recession.…”

Section: Northern and Central Scotlandmentioning

confidence: 99%

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The last British Ice Sheet: A review of the evidence utilised in the compilation of the Glacial Map of Britain

Evans

Clark

Mitchell

2005

Earth-Science Reviews

126

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This paper reviews the evidence presently available (as at December 2003) in an effort to stimulate further research on the last British Ice Sheet and promote a reconstruction of ice sheet behaviour based on glacial geology and geomorphology. The wide range of evidence that has been scrutinized for inclusion on the glacial map is assessed with respect to the variability of its quality and quantity and the existing controversies in ice sheet reconstructions. Landforms interpreted as being of unequivocal ice-marginal origin (moraines, ice-contact glacifluvial landforms and lateral meltwater channels) and till sheet margins are used in conjunction with available chronological control to locate former glacier and ice-sheet margins throughout the last glacial cycle. Subglacial landforms (drumlins, flutings and eskers) have been used to demarcate former flow patterns within the ice sheet. The compilation of evidence in a regional map is crucial to any future reconstructions of palaeo-ice sheet dynamics and will provide a clearer understanding of ice sheet configuration, ice divide migration and ice thickness and coverage for the British Ice Sheet as it evolved through the last glacial cycle.2

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Section: Northern and Central Scotlandmentioning

confidence: 97%

Section: Northern and Central Scotlandmentioning

confidence: 99%

The last British Ice Sheet: A review of the evidence utilised in the compilation of the Glacial Map of Britain

Evans

Clark

Mitchell

2005

Earth-Science Reviews

126

View full text Add to dashboard Cite

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“…Complex shoreline correlation diagrams were developed, identifying a suite of late-glacial and post-glacial shorelines, each with different tilts and elevation ranges (e.g. Synge and Stephens, 1966;Synge, 1977aSynge, , 1977bDevoy, 1983). Whilst the details vary, the general pattern of decreasing shoreline height with distance west and south is a common feature of the reconstructions.…”

Section: The Late-glacial and Post-glacial Shorelinesmentioning

confidence: 99%

“…Similarly, the distribution of 'raised shorelines' around the Irish coast has been an enduring subject of study, with considerable work focussing on their implications for vertical land movement and their use as tools for correlating stratigraphic units (e.g. Coffey and Praeger, 1904;Wright and Muff, 1904;Stephens, 1957;Synge and Stephens, 1966;Synge, 1977a;Warren, 1979Warren, , 1985. In the last major compendium of research into the Irish Quaternary record (Edwards and Warren, 1985), a chapter devoted to coastal evolution focussed on shoreline data and its correlation as a way of evaluating RSL change (Synge, 1985).…”

Section: Introductionmentioning

confidence: 99%

Relative Sea-Level Change Around the Irish Coast

Edwards

Craven

2016

Advances in Irish Quaternary Studies

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“…Praeger, 1897;Coffey and Praeger, 1904;Movius, 1953;Stephens, 1963, Prior, 1965Orme, 1966;Synge and Stephens, 1966;Carter, 1982). This varied associa�on of 'raised shorelines', which consists of erosional features such as rock pla�orms, notches, terraces and 'washing limits', and deposi�onal features such as gravel ridges, or marine deltas, has been cited as evidence of higher than present rela�ve sea-level (RSL) resul�ng from glacioisosta�c rebound of this formerly glaciated region (Devoy, 1983(Devoy, , 1995McCabe et al, 2007).…”

Section: Introduc�onmentioning

confidence: 99%

Modelling the development of rocky shoreline profiles along the northern coast of Ireland

2013

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Modelling the Development of Rocky Shoreline Profiles along the Northern Coast of IrelandEmail: robin.edwards@tcd.ie AbstractA mathema�cal wave-erosion model is used to simulate postglacial shoreline profiles along the rocky, high energy coast of the north of Ireland. The wave erosion model is driven by a suite of rela�ve sea-level (RSL) curves for the last 16,000 years produced from four glacial rebound models. Mul�ple runs are performed with different ini�al shore profiles and rock resistances to inves�gate shoreline evolu�on and the significance of inherited morphology on the resultant profile shape. The simulated profiles are then compared with mapped profiles from three areas of the north of Ireland with different lithological and hydrographic proper�es.Modelled profiles generally replicate the overall mean shoreline gradients observed across the region when rock resistance is rela�vely high and erosion rates correspondingly low. In these profiles, breaks in mean slope are observed at depths comparable to the RSL minima in several of the RSL scenarios (at c. -10m, -15m and -20m for North Antrim, Derry and Donegal respec�vely). At Portrush and Portballintrae (Derry), profiles may be influenced by structural controls rela�ng to the underlying basalt surface and the removal of overlying glaciogenic sediments.All RSL scenarios replicate the observed eastward increase in cliff-pla�orm junc�on height, reflec�ng the differen�al glacioisosta�c rebound experienced along the coast. However, the precise eleva�on at which the simulated cliff base occurs is sensi�ve to the choice of RSL scenario, sugges�ng that this parameter may prove useful in evalua�ng glacial rebound model performance. Several of the RSL scenarios generate raised shore pla�orms or terraces in North Antrim and Derry at heights comparable to raised shoreline features reported in the literature. However, no single curve or combina�on of parameters is capable of genera�ng the range of pla�orm and terrace features observed in the bathymetric and topographic data. These misfits are consistent with the idea that many rock pla�orm or terrace features are inherited from an earlier phase or phases of RSL.Keywords: wave erosion, model, rela�ve sea level, rock coast, shore pla�orms, marine terraces, IrelandAbbrevia�ons: Rela�ve Sea Level (RSL); Joint Irish Bathymetric Survey (JIBS); Digital Eleva�on Model (DEM); mean high water spring �de (MHWS), mean high water neap �de (MHWN), mid-�de (MT), mean low water neap �de (MLWN), and mean low water spring �de (MLWS); Ordnance Datum Malin Head (OD) This is the author's final copy of a published manuscript made available via Trinity's Access to Research Archive (TARA). This item is protected by original copyright. For full details visit the TARA website at www.tara.tcd.ie Author's Final Copy Available via Trinity College Dublin's Open Access Repository (www.tara.tcd.ie) 2 Introduc�onThe high energy, wave dominated coastline of the north of Ireland comprises rocky cliffs and shore pla�orms, commonly associated with g...

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Late- and Post-Glacial Shorelines, and Ice Limits in Argyll and North-East Ulster

Cited by 47 publications

References 0 publications

The last British Ice Sheet: A review of the evidence utilised in the compilation of the Glacial Map of Britain

The last British Ice Sheet: A review of the evidence utilised in the compilation of the Glacial Map of Britain

Relative Sea-Level Change Around the Irish Coast

Modelling the development of rocky shoreline profiles along the northern coast of Ireland

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