Stable isotope composition of bulk and secondary carbonates from the Quaternary loess-paleosol sequence in Süttő, Hungary

Koeniger, Paul; Barta, Gabriella; Thiel, Christine; Bajnóczi, Bernadett; Novothny, Ágnes; Horváth, Erzsébet; Techmer, Astrid; Frechen, Manfred

doi:10.1016/j.quaint.2012.06.038

Cited by 20 publications

(20 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Ostracods were identified using Fuhrmann (2012), Griffiths et al (1993), Griffiths and Holmes (2000), and Meisch (2000). The classification of secondary carbonates followed Barta (2011) and Koeniger et al (2014). For pollen analyses only the lowest part of section IV was suitable, as it was deposited under reducing conditions indicated by darkish and bluish-grey colours in contrast to the overlying strata.…”

Section: Palaeobiological Methods (Palynology Ostracods Gastropods)mentioning

confidence: 99%

Palaeoenvironments during MIS 3 and MIS 2 inferred from lacustrine intercalations in the loess–palaeosol sequence at Bobingen (southern Germany)

Mayr

Matzke‐Karasz

Stojakowits

et al. 2017

E&G Quaternary Sci. J.

View full text Add to dashboard Cite

Abstract:Recently exposed loess-palaeosol sequences in the northern Alpine foreland close to Bobingen (southern Germany) were investigated with a multi-proxy approach combining isotopic, geochemical, lithological, and micropalaeontological methods. Luminescence ages date the sections into the Middle and Upper Würmian periods corresponding to Marine Isotope Stages 3 and 2. A gleyic soil horizon at the base was dated to 45 ka and provided a palynoflora dominated by Poaceae, Cyperaceae, and Pinus, as well as frequent aquatic taxa. Lacustrine conditions prevailed after the gley formation until 30 ka, providing a comparatively diverse lacustrine fauna dominated by aquatic gastropods and the ostracod species Candona candida. At the transition to the Upper Würm, climatic conditions became harsh, indicated by accelerated deposition of more coarse-grained loess, organic geochemical indicators, and scarceness of biotic remains. Two tundra-gley horizons in the Upper Würm point to short phases of climatic amelioration with higher humidity also evidenced by reoccurrence of ostracod and aquatic gastropod remains. We propose that these climatic ameliorations were coincident with the Greenland interstadials 4 and 2.Published by Copernicus Publications on behalf of the Deutsche Quartärvereinigung (DEUQUA) e.V.

show abstract

Section: Palaeobiological Methods (Palynology Ostracods Gastropods)mentioning

confidence: 99%

Palaeoenvironments during MIS 3 and MIS 2 inferred from lacustrine intercalations in the loess–palaeosol sequence at Bobingen (southern Germany)

Mayr

Matzke‐Karasz

Stojakowits

et al. 2017

E&G Quaternary Sci. J.

View full text Add to dashboard Cite

show abstract

“…Although the analysis of rhizoliths stable isotope comhttp://dx.doi.org/10.1016/j.epsl.2016.02.045 0012-821X/© 2016 Elsevier B.V. All rights reserved. positions (δ 13 C and δ 18 O) has already been performed to estimate the prevailing palaeoclimatic conditions (Gallant et al, 2014;Koeniger et al, 2014;Pustovoytov and Terhorst, 2004), in most cases the relationship between ambient temperature and the δ 18 O value has not yet been quantified. The ages of these carbonates is not well constrained because they are generally younger than the horizons in which they formed.…”

Section: Introductionmentioning

confidence: 99%

Palaeotemperature reconstruction during the Last Glacial from δ 18 O of earthworm calcite granules from Nussloch loess sequence, Germany

Prud'homme

Lécuyer

Antoine

et al. 2016

Earth and Planetary Science Letters

View full text Add to dashboard Cite

The Nussloch loess-palaeosol sequence (Rhine Valley, Germany) is considered to be one of the most complete records of the last glacial period in Western Europe due to its very high sedimentation rate and its good chronological control. This sequence is therefore a good framework in which to develop new proxies for palaeoenvironmental reconstructions. In this study, we explore, for the first time, the potential of earthworm calcite granules as a new bio-indicator and climatic proxy of absolute air and soil temperature in the context of Last Glacial loess. These granules are composed of rhomboedric calcite crystals, organized in a radial crystalline structure. As these granules are individually generated by earthworms at a relative fast rate, they are expected to record intra-annual variations in the available sources of oxygen: percolating waters of meteoric origin. We extracted thirty earthworm calcite granules from 11 of 5 cm layers thick from tundra gley and brown soil horizons previously, dated at 45 to 23 ka. Oxygen isotope ratios were measured on each individual granule. The δ 18 O of calcite granules and interlinked transfer functions between water cycle, air and soil temperatures allowed us to estimate air temperatures ranging from 10 to 12 ± 4 • C, which most likely reflect the warm periods of the year when earthworms were the most active.

show abstract

“…3). These carbon isotope values are overlapping, while the oxygen isotope compositions are ~ 1-2 ‰ less negative than those measured in concretions of last interglacial soils in sequences at Süttő (Königer et al, 2014) and Verőce (Barta et al, 2018), 295~250 km north of the study site. Soil temperatures calculated from the clumped isotope compositions (ST-Δ 47sc ) were found in a broad range (3 to 20 ºC, with 1.3-6.1 ºC uncertainty;…”

Section: Resultsmentioning

confidence: 65%

Clumped isotope paleotemperatures from MIS 5 soil carbonates in southern Hungary

Újvári

Kele

Bernasconi

et al. 2019

Palaeogeography, Palaeoclimatology, Palaeoecology

Self Cite

View full text Add to dashboard Cite

Quantitative paleotemperature reconstructions for the continents, including East Central Europe, over marine isotope stage 5 (MIS 5) and specifically the last interglacial (LIG, MIS 5e) are scarce and mostly based on pollen assemblages. Here we provide soil and air temperature reconstructions for the summer season of MIS 5e (5c) using carbonate clumped isotope thermometry applied to soil carbonate concretions in the Dunaszekcső loess-paleosol record, Southern Hungary. The sediments making up the S1 pedocomplex investigated represent the MIS 5 as demonstrated by bracketing K-feldspar post IR-IRSL 225/290 ages of ~63 to 164 ka. Both the absolute ages and pedogenic susceptibility (χ P) curve indicate that all the subtages of MIS 5 were found to be recorded in the sequence, and soil carbonates found >1 m depth below the paleosurface of the S1 soil provide pristine, undisturbed isotopic signals. The soil carbonate concretions likely formed during MIS 5e at a relatively shallow (20-50 cm) depth, but a later formation during MIS 5c at >50 cm depth is also plausible. Clumped isotope-based soil temperatures (ST-Δ 47sc) ranged from 16 to 20 ºC, and reconstructed summer season air temperatures (SATs) for the LIG are consistently lower than the modern values at the site by 1-5 ºC, matching surprisingly well the soil bacteria membrane lipidbased MIS 5e air temperature estimates from a nearby Serbian site. At the same time, the reconstructed SAT values do not match the 2-4 ºC positive warm season anomalies modeled for East Central Europe between LIG and present-day in paleoclimate simulations. ST uncertainties of 1-6 ºC, infiltration-driven cooling of soil temperatures, and the possibility of MIS 5c formation of the investigated carbonates may account for this proxy-model data discrepancy. Oxygen isotope compositions of summer season paleo-rainwaters for MIS 5e (5c), as reconstructed using the ST-Δ 47sc and δ 18 O sc data of soil carbonates, were found in a range of-6.7 and-6.4 ‰, matching the modern mean summer season value of-6.2±0.94 ‰ within error.

show abstract

Stable isotope composition of bulk and secondary carbonates from the Quaternary loess-paleosol sequence in Süttő, Hungary

Cited by 20 publications

References 42 publications

Palaeoenvironments during MIS 3 and MIS 2 inferred from lacustrine intercalations in the loess–palaeosol sequence at Bobingen (southern Germany)

Palaeoenvironments during MIS 3 and MIS 2 inferred from lacustrine intercalations in the loess–palaeosol sequence at Bobingen (southern Germany)

Palaeotemperature reconstruction during the Last Glacial from δ 18 O of earthworm calcite granules from Nussloch loess sequence, Germany

Clumped isotope paleotemperatures from MIS 5 soil carbonates in southern Hungary

Contact Info

Product

Resources

About