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Pore-water pH, H2S, Cl-, SO42-, SiO2, NO2-, PO43-, NH4+, NO3-, major and trace element data from MUC cores taken during RV HEINCKE cruises HE575 and HE595 in the Helgoland Mud Area, German Bight

This dataset includes downcore measurements of pH values, H2S, Cl-, SO42-, SiO2, NO2-, PO43-, NH4+, NO3-, As, Ba, Ca, Cu, Fe, K, Li, Mg, Mn, Mo, P, Si and Sr concentrations for sediment cores retrieved using multi-corer sampling during RV Heincke expeditions HE575 and HE595 in 2021 and 2022, respectively. The samples were collected in the framework of the Project APOC (Anthropogenic impacts on particulate organic carbon cycling in the North Sea). All measurements were performed in the laboratories of the Alfred Wegener Institute (AWI) in Bremerhaven, Germany, except pH values, which were determined onboard the research vessel.

Analytical data of floodplain, colluvial, Triassic (Buntsandstein), Lopingian (Zechstein) and Pleistocene loess data from the Weiße Elster catchment (Central Germany)

In this dataset, we present grain size and XRF element data of Holocene floodplain and colluvial, Pleistocene loess and Triassic (Buntsandstein) samples from the catchment of the Weiße Elster River (Central Germany). The samples were taken during the DFG-funded project 'Imprints of rapid climate changes and human activity on Holocene hydro-sedimentary dynamics in Central Europe (loess-covered Weiße Elster model region)' [SU491/6-1, ET20/10-1, VE117/7-1, WE5518/1-1, ZI721/13-1] between 2017 - 2025, using open outcrops, hand augering (Pürckhauer) or drilling with an Atlas Copco Cobra Pro hammer. The goal of this study was to obtain sediment provenance for Holocene overbank sediments in the middle Weiße Elster floodplain.

XRF core-scanning data of composite sediment core ROD11 from the crater basin of Rodderberg, Germany

XRF core-scanning data characterizes the sediment composition geochemically and supports palaeoclimatic reconstruction of glacial/interglacial cycles for the Middle Pleistocene sediment record from the crater basin of Rodderberg, Germany. A 72.8 m long sediment record was recovered by means of wire-line drilling with 3 m long liners from the silted-up crater basin of Rodderberg (East Eifel Volcanic Field) in the vicinity of the city of Bonn, Germany. The composite record ROD11 was subjected to XRF core scanning with a spatial resolution of 2 mm using an ITRAX XRF core scanner, Cox Analytics with a Molybdenum X-ray tube (Croudace et al., 2019; Croudace and Rothwell, 2015). The measurements were conducted with a fixed setting of 30 kV, 40 mA, and an exposure time of 5 s. The software Q-spec (Cox Analytics) was employed for processing of the scanner output and calculation of qualitative elemental measurements in counts. Principal component analysis was then employed to reduce the data dimension and identify latent environmental control factors for the reliable set of elemental data in the normalized (clr-transformed) and standardized XRF dataset (Bertrand et al., 2024). Valued by multiple dating techniques for the past 430 ka, this terrestrial record provides an environmental reconstruction since the Middle Pleistocene.

Dekontamination von Strontium-90 und Jod-131 enthaltenden Lösungen

Ziel: Abreicherung geloester radioaktiver Ionen; Verfahren selektiv und als Durchlaufprozess technologisch problemlos; Prinzip des rapiden heterogenen Isotopenaustausches an mikrokristallinen Systemen, in einer Matrix fixiert erweiterbar; Produkt fest; komprimierbar und lagerfaehig; Anwendung in kleinen bis mittleren Massstaeben; Patente in England, Frankreich, USA.

Grundwassermessstelle DEGM_DEMV_27330022: Grebs OP

Stammdaten und Analysedaten zu den Grundwassermessstellen im EUA-Messnetz: Messtelle DEGM_DEMV_27330022 (Grebs OP)

Iron, mercury and tin contents as well as grain sizes measurements from fluvial sediments of the Röslau River, Bavaria, Germany

We measured Sn, Fe and Hg content as well as grain size composition of soil cores and streambed samples from the floodplain of the Röslau River (Bavaria, Germany), in order to reconstruct the floodplain development and chemical antropogenic impacts. The samples were collected in 2023 and analysed in 2023/24 using aqua regia digestion and ICP-OES/ICP-MS to analyse the elemental composition. To prepare the samples, the sediment was sieved (2 mm) to discard the gravel fraction and large organic pieces. Further homogenisation was undertaken by grinding the samples with a vibratory mill. Grain sizes were obtained using a combination of sieving and laser diffraction (Microtrac particle analyser; Microtrac Retsch GmbH SYNC SN 0233).

XRF logging data from Nussloch loess cores

The Nussloch Drilling Campaign (NUSS) involved drilling three loess sediment cores (85 mm in diameter) on April 21-25, 2019, on top of a loess hill at 49.31°N, 8.73°E, at an altitude of 215 m, close to the most recently described outcrop at the Nussloch reference site in Germany. Downhole logging was performed in the three drilling holes. Core S2, which has the most complete stratigraphy compared to previously published profiles, was analyzed using XRF core scanning. The name of the samples is given as NUSS for Nussloch, S2 for core S2, and C1-C11 for the subcore numbers. Depth is expressed in meters from the topsoil to the lowest level reached during drilling. The XRF data consists of the following elements: Na, Mg, Al, Si, P, S, Cl, K, Ca, Ti, Cr, Mn, Fe, Cu, Zn, Ni, Br, Rb, Sr, Zr, and Pb, in counts. These raw data counts are followed by the following ratios: Ca/Sr, Rb/Sr, Rb/K, Fe/Al, Fe/Mn, Si/Al, Ti/Al, Ti/Zr, Zr/Rb, and Ca/Al. Measurements were conducted every 1 cm from the top of the sub-cores. The measurements were performed with a resolution of 5mm on the AVAATECH Core Scanner at the EDYTEM laboratory in Chambéry in June 2015. This investigation aimed to conduct a comprehensive coring to acquire a sedimentary archive to ensure the preservation of this distinctive Nussloch record for future research projects.

Geochemical parameters in peat depth profiles from ombrotrophic bogs in North and Central Europe. Pichlmaier Moor, Austria

This dataset contains geochemical variables measured in six depth profiles from ombrotrophic peatlands in North and Central Europe. Peat cores were taken during the spring and summer of 2022 from Amtsvenn (AV1), Germany; Drebbersches Moor (DM1), Germany; Fochteloër Veen (FV1), the Netherlands; Bagno Kusowo (KR1), Poland; Pichlmaier Moor (PI1), Austria and Pürgschachen Moor (PM1), Austria. The cores AV1, DM1 and KR1 were taken using a Wardenaar sampler (Royal Eijkelkamp, Giesbeek, the Netherlands) and had diameter of 10 cm. The cores FV1, PM1 and PI1 had an 8 cm diameter and were obtained using an Instorf sampler (Royal Eijkelkamp, Giesbeek, the Netherlands). The cores FV1, DM1 and KR1 were 100 cm, core AV1 was 95 cm, core PI1 was 85 cm and core PM1 was 200 cm. The cores were subsampeled in 1 cm (AV1, DM1, KR1, FV1) and 2 cm (PI1, PM1) sections. The subsamples were milled after freeze drying in a ballmill using tungen carbide accesoires. X-Ray Fluorescence (WD-XRF; ZSX Primus II, Rigaku, Tokyo, Japan) was used to determine Al (μg g-1), As (μg g-1), Ba (μg g-1), Br (μg g-1), Ca (g g-1), Cl (μg g-1), Cr (μg g-1), Cu (μg g-1), Fe (g g-1), K (g g-1), Mg (μg g-1), Mn (μg g-1), Na (μg g-1), P (μg g-1), Pb (μg g-1), Rb (μg g-1), S (μg g-1), Si (μg g-1), Sr (μg g-1), Ti (μg g-1) and Zn (μg g-1). These data were processed and calibrated using the iloekxrf package (Teickner & Knorr, 2024) in R. C, N and their stable isotopes were determined using an elemental analyser linked to an isotope ratio mass spectrometer (EA-3000, Eurovector, Pavia, Italy & Nu Horizon, Nu Instruments, Wrexham, UK). C and N were given in units g g-1 and stable isotopes were given as δ13C and δ15N for stable isotopes of C and N, respectively. Raw data C, N and stable isotope data were calibrated with certified standard and blank effects were corrected with the ilokeirms package (Teickner & Knorr, 2024). Using Fourier Transform Mid-Infrared Spectroscopy (FT-MIR) (Agilent Cary 670 FTIR spectromter, Agilent Technologies, Santa Clara, Ca, USA) humification indices (HI) were determined. Spectra were recorded from 600 cm-1 to 4000 cm-1 with a resolution of 2 cm-1 and baselines corrected with the ir package (Teickner, 2025) to estimate relative peack heights. The HI (no unit) for each sample was calculated by taking the ratio of intensities at 1630 cm-1 to the intensities at 1090 cm-1. Bulk densities (g cm-3) were estimated from FT-MIR data (Teickner et al., in preparation).

Nachweisbare Umweltschaeden im Sektionsgut

Strontium 90 entsteht als Spaltprodukt bei Kernwaffenversuchen und wird im Knochen eingelagert. Nur durch Messung von Strontium 90 am menschlichen Knochen ist die tatsaechliche Belastung durch den Beta-Strahler bestimmbar. Hierzu werden Oberschenkelknochen von Leichen aus dem Sektionsgut asserviert, auf eine gleichmaessige Repraesentierung der Lebensalter wird geachtet.

Untersuchungen zum Transfer Boden - Pflanze langlebiger Radionuklide unter Freilandbedingungen (Lysimeterstudie)

Das Ziel des vorliegenden Projektes ist die praxisnahe Durchfuehrung folgender Untersuchungen, die sich auf die Radionuklide Cs-137, Ra-226, Co-60 und Sr-90 beziehen: 1) Lysimeterversuche zur Ermittlung des Transfers von Cs-137, Ra-226 und Co-60 aus vier verschiedenen Boeden (drei Wiederholungen). 2) Versuche mit Boeden, die durch den Reaktorunfall von Tschernobyl kontaminiert wurden zum Sr-90 Transfer. Zu 1) In den Jahren 1988 bis 1990 wurde eine Lysimeteranlage mit zwoelf Bodenmonolithen errichtet. Der Oberboden (0-20 cm) wurde mit den oben angefuehrten Radionukliden kontaminiert. Seit Sommer 1990 wird eine landwirtschaftliche Fruchtfolge auf den 1 m2 grossen Gefaessen durchgefuehrt und das anfallende Sickerwasser auf allfaellige Radionuklidauswaschungen untersucht. Zu 2) Seit 1988 wurden etwa 150 Pflanzenproben und die dazugehoerigen Bodenproben im Freiland entnommen und die Sr-90 Transferfaktoren ermittelt. Parallel dazu wird eine eingehende Charakterisierung der Boeden durchgefuehrt.

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