Sedimentology of Late Devensian glaciofluvial outwash in the Don Valley, Grampian Region

Aitken, John F.

doi:10.1144/sjg34020097

Cited by 29 publications

(24 citation statements)

References 62 publications

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“…There was certainly widespread ponding between East Grampian and Logie-Buchan ice to the north of Aberdeen, where subaqueous fan and glaciofluvial deltaic deposits abound (Aitken, 1995), for example at the Strabathie (Thomas, 1984: Thomas and and Mill of Dyce sites (Aitken, 1998) (Table 2) (Merritt et al, 2003, map 9). That this ponding was closely followed by a marine incursion is suggested by various reported finds of the bones of whales, seals and birds in isolated, locally fossiliferous deposits of red and brown silt and clay overlying glaciofluvial deposits up to about 30 m OD (Peacock, 1999;Merritt et al, 2003).…”

Section: Evidence For Ice Flow From Strathmore Up the Eastern Coast Omentioning

confidence: 99%

Middle to Late Devensian glaciation of north‐east Scotland: implications for the north‐eastern quadrant of the last British–Irish ice sheet

Merritt

Connell

Hall

2016

J Quaternary Science

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We present a review of over 175 years of research into the Middle to Late Devensian (Weichselian) glaciation of north-east Scotland based crucially on both its lithostratigraphic and geomorphic records. The location of the region, and surrounding seabed, makes this unusually detailed record significant for deciphering the former interactions and dynamics of Scottish and Scandinavian ice within the North Sea Basin (NSB), which continue to be controversial. A twelve-stage event stratigraphy is proposed based on a parsimonious interpretation of stratigraphic relationships, till lithology and regional clast fabrics, striae, subglacial bedforms, ice-marginal features and published geochronometry at critical sites. The record of regional glaciation supports converging evidence that the north-eastern quadrant of the last British and Irish Ice Sheet (BIIS) reached its maximum spatial extent in the late Middle-to early Late Devensian and later re-expanded following widespread internal glacial reorganisations, marine transgression and partial retreat from the central NSB. Retreat was interrupted by several glacial readvances of limited extent. Fieldcaptured data helps identify important events that are not clearly resolved from remote sensing alone, particularly regarding growth phases of the last glaciation.

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Section: Evidence For Ice Flow From Strathmore Up the Eastern Coast Omentioning

confidence: 99%

Middle to Late Devensian glaciation of north‐east Scotland: implications for the north‐eastern quadrant of the last British–Irish ice sheet

Merritt

Connell

Hall

2016

J Quaternary Science

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“…The significance of sheetflows increases espe-cially in the distal parts of outwashes (cf. Krigström, 1962;Olsen & Andreasen, 1995;Aitken, 1998;Zieliński & Van Loon, 2003).…”

Section: Introductionmentioning

confidence: 99%

Unusual development of sandur sedimentary succession, an example from the Pleistocene of S Poland

Salamon¹,

Zieliński²

2010

Geologos

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An atypical lithological development of outwash deposits in the Carpathians Foreland (S Poland) shows lower and middle parts of the sedimentary succession that are characterized by sinuous palaeochannels. This channel facies consists of laterally accreted sands derived from side bars. The sedimentary environment was a proglacial system of anabranching channels, presumably of anastomosed type. The outwash channel pattern was most probably controlled by the raising base level of the fluvial system. Both proglacial and extraglacial waters were dammed by a sandur within a small upland valley. Aggradation and progradation of the glaciofluvial deposits resulted in progressive rising of the dammed lake level. The low hydraulic gradient of the outwash streams resulted in a sinuous planform as well as a lowenergy style of deposition. Afterwards, the rising lake water was drained off through a low watershed and the entire valley became filled with outwash sediments. The bedrock morphology thus became buried and a typical unconfined sandur with a braided channel network developed during the last phase of the glaciomarginal sedimentation (upper part of the sedimentary succession under study).

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“…This lithofacies pro vides ev i dence of the prox im ity of the ice sheet mar gin (cf. Aitken, 1998). The beds of mas sive sand Sm and gravel GSm are the re sult of abrupt aggradation.…”

Section: Sedimentary Succession -Description and Interpretationmentioning

confidence: 99%

What was an interglacial river like? Sedimentological investigation of Holsteinian fluvial deposits in eastern Poland

Zieliński

Terpiłowski

Zieliński

et al. 2015

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Holsteinian flu vial de pos its in the Samica River val ley in east ern Po land have been stud ied, in an ap prox i mately 12 m thick suc ces sion fill ing palaeochannels and com pris ing sandy chan nel fa cies suc ceeded by a pack age of gyttja, peat and silt depos ited in an ox bow lake. Chan nel belts in clud ing palaeochannel fills cut into outwash sands and are over lain by diamictic sands re worked by gelifluction un der periglacial con di tions. Sedimentological and palynological in ves ti ga tions in com bi nation al lowed the rec og ni tion of gla cial and inter gla cial de pos its. The chan nel belt was formed by a typ i cal sand-bed, me ander ing river with de po si tion con trolled by abun dant point bars. The sed i men tary evo lu tion of the Samica val ley is in ter preted in the con text of the gla cial-inter gla cial cy cle. Val ley-scale ero sion and change of river style from braided to me an der ing occurred co evally with the de cay of an ice sheet (deglaciation) and the main phase of me an der ing river sed i men ta tion is at tributed to the lat est Elsterian and early Holsteinian. The next part of the inter gla cial, from pi o neer stage to es tab lished tem per ate con di tions, is re corded in a biogenic ox bow-lake fill. The suc ces sion stud ied has been com pared with pub lished data on the Eu ro pean flu vial de pos its of Mid dle Pleis to cene interglacials. It is pointed out here that river chan nel pat terns in West ern and East ern Eu rope dif fered. Based on this ob ser va tion, some gen eral hy poth e ses re gard ing con ti nen tal-scale clima tic dis tinct ness are put for ward.

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Sedimentology of Late Devensian glaciofluvial outwash in the Don Valley, Grampian Region

Cited by 29 publications

References 62 publications

Middle to Late Devensian glaciation of north‐east Scotland: implications for the north‐eastern quadrant of the last British–Irish ice sheet

Middle to Late Devensian glaciation of north‐east Scotland: implications for the north‐eastern quadrant of the last British–Irish ice sheet

Unusual development of sandur sedimentary succession, an example from the Pleistocene of S Poland

What was an interglacial river like? Sedimentological investigation of Holsteinian fluvial deposits in eastern Poland

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