Morphological and Physical Properties of Dehydrated Holocene Carbonate Limnic Deposits in Post-Bog Areas of NW Poland

Jarnuszewski, Grzegorz; Meller, E.

doi:10.12911/22998993/79412

Cited by 4 publications

(2 citation statements)

References 10 publications

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“…Soils developed from bottom lake deposits rich in calcium carbonate, which Uggla (1971Uggla ( , 1976 suggested to name post-lacustrine or Quaternary rendzinas, are an interesting type of soils. 10 They have been recently studied by Lemkowska and Sowiński (2018) in the Masurian Lakeland and by Meller (2006) and Jarnuszewski and Meller (2018Meller ( , 2019 in Western Pomerania, in Poland. Although a certain amount of calcium carbonate was often presented in the analysed limnic materials (Fig.…”

Section: Classification Of Soilsmentioning

confidence: 99%

Classification of soils developed from bottom lake deposits in north-eastern Poland

Łachacz¹,

Nitkiewicz²

2021

Soil Sci. Ann.

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Section: Classification Of Soilsmentioning

confidence: 99%

Classification of soils developed from bottom lake deposits in north-eastern Poland

Łachacz¹,

Nitkiewicz²

2021

Soil Sci. Ann.

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“…In detail, before seasonal or periodic desiccation and water-level fall, the sediment surface remained protected under the cover of aqueous algal remains. During the decay time of the algal remains, the new growth of terrestrial grass could protect the sediment from further erosion (JARNUSZEWSKI & MELLER, 2018). If the top horizon was exposed to strong inflow from the bottom of the lake (springs and estavelles) (FORD & WILLIAMS, 2007;MORELLÓN et al, 2014), local streams could remove the protective vegetation cover, and channels could be rapidly formed by erosion.…”

Section: Depositional Environment Of the Periodically Desiccated Lakementioning

confidence: 99%

Quaternary Depositional Environments in the Vrgoračko Polje/Lake (SE Croatia)

Posilović¹,

Galović²,

Stejić³

et al. 2018

Geol Cro

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The Vrgoračko polje is a karst field with a surface area of 37 km 2 and an altitude of between 20 and 28 m above sea level, situated at the southern edge of the Dalmatian Zagora. During the Quaternary the polje was flooded for variable periods of time and a lacustrine environment was established. A multidisciplinary study of drill-cores, outcrops and geoelectric measurements recognised five main sedimentary facies: laminated sediment, redeposited sediment, coarsegrained carbonate debris, littoral clay and lacustrine chalk. Based on the facies analysis, depositional environments developed during the Holocene include aquatic lacustrine littoral and deeper-water environments. The terrestrial environment is represented by a desiccated lake phase. The littoral clay facies (filling depressions and caverns in the karst relief) is laterally equivalent to the deep-water laminated facies (varves?). A stratigraphic break between littoral clay and lacustrine chalk could be time-equivalent to disturbed laminated sediments deposited in deeper-water and to local intercalations of coarse-grained carbonate debris in shallow-water facies sediments. These features could have been the result of a neotectonic event (earthquake), which triggered debris flows of colluvial material from slopes around the lake, and this could also have changed the hydrological regime of the Vrgoračko polje and affected subsequent depositional facies. According to 14 C dating, deposition of the lacustrine chalk started at the beginning of the Mid-Holocene Warm Period (7686±36 aBP) with a sedimentation rate of approximately 0.51 mm a-1 during the Middle, and 0.58 mm a-1 during the Late Holocene to today. Calculated carbonate production was estimated at 1050 gm-2 a-1. A temporary phase of subaerial exposure of the lake is indicated by desiccation cracks and two bioturbated palaeosol horizons. The described depositional environments and sediment facies found in the Vrgoračko polje could be considered to represent a typical Quaternary lacustrine sedimentation pattern for other Dinaric karst poljes. described in the Cerkničko polje, Slovenian Dinaric karst (VAL-VASOR, 1689; PLENIČAR, 1954; SMREKAR, 2000). Similarly, in the karstic Lake Banyoles (NE Spain), MORELLÓN et al. (2014) reported intense groundwater inflow that leads to the fluidization and re-suspension of previously deposited sediments. Seasonal autumn flooding of the Vrgoračko polje may (re)establish a lacustrine environment that lasts through the winter as confirmed by zonal vegetation around the polje (Fig. 1). Likewise, seasonal runoff through estavelles and ponors into the Neretva River (E of the Vrgoračko polje), and the artificial Prigon tunnel draining into the Baćinska Lakes (S of the Vrgoračko polje), leave the Vrgoračko polje dry throughout the summer. The Matica River is the only permanent stream that meanders from its springs in the NW, splits to the south and the east and then sinks (Fig. 1). The altitude difference between the springs, estavelles and ponors is approximately 8 metres. T...

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Better recognition of limnic materials at the great group and subgroup levels of the Organic Order of the Canadian System of Soil Classification

Saurette

Deragon

2023

Can. J. Soil. Sci.

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In the Canadian System of Soil Classification (CSSC), soils of the Organic order are classified at the great group level primarily based on the dominant organic material in the middle tier. The system recognizes four types of organic horizons: fibric (Of), mesic (Om), humic (Oh) and coprogenous earth (Oco), of which only the latter is not recognized at the great group level of the Organic order. Furthermore, at the subgroup level, Limnic subgroups cannot have terric or hydric layers. This is problematic in soils where the middle tier is dominated by limnic materials, and those which have dominantly limnic materials and have a terric layer. We describe 29 soil profiles in Ontario and Quebec which are either poorly captured in the CSSC, or that cannot be classified into the Organic order based on their diagnostic criteria. Based on an analysis of soil survey information in five provinces across Canada, we estimate 32,057 ha of organic soils which potentially contain limnic deposits. In key vegetable-producing areas of Quebec, large organic deposits in agricultural production are subject to peat subsidence and erosion, resulting in shallower depths to underlying coprogenous earth, which is not a suitable medium for crop production. This can potentially have negative effects on crops when mixed with humic materials in the plow layer. Due to these taxonomic and agronomic considerations, we propose the addition of a new great group, Limnisol, and suggest further integration of limnic materials at the subgroup level for the Humisol, Mesisol, and Fibrisol great groups.

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Morphological and Physical Properties of Dehydrated Holocene Carbonate Limnic Deposits in Post-Bog Areas of NW Poland

Cited by 4 publications

References 10 publications

Classification of soils developed from bottom lake deposits in north-eastern Poland

Classification of soils developed from bottom lake deposits in north-eastern Poland

Quaternary Depositional Environments in the Vrgoračko Polje/Lake (SE Croatia)

Better recognition of limnic materials at the great group and subgroup levels of the Organic Order of the Canadian System of Soil Classification

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