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

Salamon, Tomasz; Zieliński, Tomasz

doi:10.2478/v10118-009-0007-9

Cited by 11 publications

(11 citation statements)

References 38 publications

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“…The succession is interpreted as a deposit on an alluvial fan of a low-energy, relatively shallow sand-bed abandoned channel of low sinuosity lacking large floods (cf. Salamon & Zieliński, 2010). The lithological characteristics of this lithofacies association show similarities to the D-5 lithotype of Zieliński (1992), which presents the middle or distal zone of an outwash plain (Table 2).…”

Section: Discussionsupporting

confidence: 51%

Kame or Moraine? A Sedimentological Study of a Glaciomarginal Landform at Niedźwiedziny (Great Polish Lowland)

Ewert-Krzemieniewska

2014

Geologos

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A sedimentary succession in a gravel pit at Niedźwiedziny was investigated in order to determine its origin: kame or moraine. The gravel pit is located in an isolated hill of approx. 600 m long and 250–400 m wide. The succession is built of glaciofuvial deposits: a sandy/gravelly unit in the lower and middle parts, overlain by diam-icton. Five lithofacies have been distinguished, which represent two facies associations: (1) a fuvial association evolving from a high-energy to a transitional to a shallow braided river on an alluvial fan, and (2) an association of cohesive deposits representing a glacigenic mass fow. The interpretation is based mainly on palaeocurrent data and differs from conclusions by earlier investigators. The ice-marginal zone is characterised by a large variety of glaciomarginal forms. Their sedimentology, morphology and palaeogeography are determined by successive phases of deglaciation. The results of the present study show that the character of the deglaciation in the study area changed with time from frontal to areal deglaciation.

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Section: Discussionsupporting

confidence: 51%

Kame or Moraine? A Sedimentological Study of a Glaciomarginal Landform at Niedźwiedziny (Great Polish Lowland)

Ewert-Krzemieniewska

2014

Geologos

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“…It contains five cycles of deposition which are dominated by large-scale lithofacies Sl covered with sands of either ripple lamination or the scour-and-fill structure. Such lithofacies are characteristic for side-bar deposits (Olsen, 1988;Zieliński, 1998, Salamon andZieliński, 2010). In its upper part they were being cut by chute channels or covered with fine-grained sands of ripple lamination or horizontal bedding (the lithofacies association Sr,Sm(Sh) , Fig.…”

Section: Discussionmentioning

confidence: 99%

“…The deposits of these rivers differ in terms of their age and they show diverse shaping of riverbed forms and thus they had different energy of the depositional environment which depended on the advance and retreat of ice sheet. Due to this the development of river systems which exhibit braiding diversity and both braided and meandering or anabranching patterns (Olsen, 1988;Marren, 2005;Salamon and Zieliński, 2010).…”

Section: Introductionmentioning

confidence: 99%

Age and sedimentological features of fluvial series in the Toruń Basin and the Drwęca Valley (Poland)

et al. 2011

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Abstract:The deposits of the Toruń Basin are dominated by a few-metre thick sand series which fill up buried valley-like depressions. In many cases they underlie the Weichselian till which builds up the ice marginal streamway (pradolina) terraces or they are exposed at the basin slopes. As the results of the geological and sedimentological studies, as well as of the dating of the deposits at the sites in the Toruń Basin indicate, the deposits include two fluvial series accumulated before the advancement of the Leszno Phase ice sheet, i.e. in Middle Weichselian and at the beginning of Late Weichselian. The oldest fluvial series connected with the Saalian Glaciation was found at the mouth section of the Drwęca Valley. The fluvial system of the Toruń Basin during Middle Weichselian and at the beginning of Late Weichselian developed in two phases of the sand-bed braided river. During the first one the river channel were dominated by large mid-riverbed sandbars, while during the second phase the water flow was smaller and, as a result, low transverse sandbars and two-dimensional dunes developed. Other active river channel also showed low-energy flows, more intensive meandering than in the case of the braided rivers, as well as sandy side-bars. Analysis of the rounding and frosting of the quartz grains indicate that the studied series of the Weichselian sandy deposits represent alluvia of a river which were fed from two diverse sources. The first one might have represented the alluvia of a warm river which transformed its load, while the other one might have mainly carried the underlying Quaternary deposits.

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“…Applying this proxy, the subhorizontal, horizontal and wavy stratification of the fines and sand representing the Glaciolacustrine sequence are interpreted as being due to near-standing/low-energy water conditions (cf. Salamon and Zieliński 2010), modified by occasional flows mean-sorting-skewness bi-plots (data from Central Poland: Kalińska 2012); c aeolian/weathered quartz grains bi-plot (data from Central Poland: Kalińska 2012) in a shallow glacial lake (cf. Ojala et al 2000).…”

Section: Past Sedimentary Processes At Varesmetsamentioning

confidence: 99%

Macro- and micro-scale study and chronology of Late Weichselian aeolian sediments in Estonia, north-eastern European Sand Belt

Kalińska

Hang

Jõeleht

et al. 2019

Int J Earth Sci (Geol Rundsch)

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Patchy aeolian landforms, representing the NE part of the European Sand Belt, occur in NE Estonia, between the Gulf of Finland and Lake Peipsi. The dunes are restricted to the former glacial lakebed, thus lying directly in contact with glaciolacustrine sediments, and have so far prompted different opinions regarding their genesis and age. This study aims to answer these open questions regarding the age and origin of these landforms and to provide information on the associated past sedimentary processes. To achieve this, we combine macro-scale (sedimentary structures and ground-penetrating radar survey) and micro-scale (grain-size, shape and character of quartz grain surfaces and mineral composition) studies with optically stimulated luminescence dating. The glaciolacustrine fines in the study area are wavy stratified, with the occurrence of mica horizons and prevalence of quartz sand grains with aeolian characteristics. Therefore, these sediments argue for near-standing/low-energy water conditions in the glacial lake, where allochthonous material was delivered by wind. A fall in the lake level and the occurrence of dry land on the northern coast of the regressive Late Weichselian Lake Peipsi favoured aeolian activity from ca. 13.5 to 10.5 ka in the region. The aeolian accumulation was brief-as apparent from the results of the micro-scale study-and lacks evidence of sediment recycling. Only easily-removable mica was deflated at the end of the aeolian depositional phase. Aeolian activity terminated ca. 10.5 ka due to a rising groundwater level that is apparent from the onset of paludification in the region.

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

Cited by 11 publications

References 38 publications

Kame or Moraine? A Sedimentological Study of a Glaciomarginal Landform at Niedźwiedziny (Great Polish Lowland)

Kame or Moraine? A Sedimentological Study of a Glaciomarginal Landform at Niedźwiedziny (Great Polish Lowland)

Age and sedimentological features of fluvial series in the Toruń Basin and the Drwęca Valley (Poland)

Macro- and micro-scale study and chronology of Late Weichselian aeolian sediments in Estonia, north-eastern European Sand Belt

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