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  • 1
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    Geochemical parameters determined in sediment cores from Lake Burgäschi, Switzerland (2019)
    PANGAEA
    Details
    Publication Date: 2023-12-18
    Description: Sediment phosphorus (P) released to surface water (a.k.a. internal P loading) is the key factor delaying lake recovery from eutrophication in many lakes. The sediment P availability and release risk into lake water can be largely evaluated by P fractions in sediments. In deep eutrophic lakes, hypolimnetic anoxia is suggested to prompt sediment-P mobility and potentially increase internal P loading on short term. However, the long-term effects hypolimnetic redox conditions and trophic state on sedimentary P-fraction retention in deep lakes are not clear. In this study we investigated two sediment cores retrieved from the deepest part of Lake Burgäschi, Switzerland. The age-depth profile based on 210Pb and 137Cs chronology dates back to the early 1900s. Sedimentary green-pigments (chlorophylls and diagenetic products) inferred from hyperspectral imaging (HSI) scanning and X-ray fluorescence (XRF)-inferred Fe/Mn ratios primarily reflect lake trophic state evolution (aquatic primary productivity) and hypolimnetic oxygenation, respectively. A sequential P-extraction with five P fractions was performed to uncover P fractionation in sediment profiles. In addition, we measured the sediment bulk elements of carbon, nitrogen and sulfur. The temporal records of P fractions concentrations and net burial rates (NBR) in sediments were investigated.
    Keywords: Burg17-B; deep lakes; eutrophication; GCUWI; Gravity corer, UWITEC; hypolimnetic anoxia; hypolimnetic withdrawal; Lake Burgäschi, Switzerland; Phosphorus fractions
    Type: Dataset
    Format: application/zip, 7 datasets
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  • 2
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    Correlation of sediment cores Burg17-C and Burg17-B (2019)
    PANGAEA
    Details
    Publication Date: 2023-12-18
    Keywords: Age; Age, difference; Age, error; Age, lower confidence level; Age, upper confidence level; Burg17-C; Comment; deep lakes; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; eutrophication; GCUWI; Gravity corer, UWITEC; hypolimnetic anoxia; hypolimnetic withdrawal; Lake Burgäschi, Switzerland; Phosphorus fractions
    Type: Dataset
    Format: text/tab-separated-values, 328 data points
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  • 3
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    Phosphorus flux of sediment core Burg17-C (2019)
    PANGAEA
    Details
    Publication Date: 2023-12-18
    Keywords: Accumulation rate per year; Age; AGE; Age, difference; Burg17-C; Carbon, inorganic, total, flux; Carbon, organic, total, flux; deep lakes; DEPTH, sediment/rock; Dry mass per area; eutrophication; GCUWI; Gravity corer, UWITEC; hypolimnetic anoxia; hypolimnetic withdrawal; Lake Burgäschi, Switzerland; Phosphorus, aluminium and iron bound, flux; Phosphorus, calcium bound, flux; Phosphorus, loosely bound, flux; Phosphorus, organic, refractory, flux; Phosphorus, redox-sensitive, flux; Phosphorus fractions; Phosphorus total, flux; Sulfur, flux
    Type: Dataset
    Format: text/tab-separated-values, 384 data points
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  • 4
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    RABD index of core Burg17-B (2019)
    PANGAEA
    Details
    Publication Date: 2023-12-18
    Keywords: Burg17-B; deep lakes; DEPTH, sediment/rock; eutrophication; GCUWI; Gravity corer, UWITEC; hypolimnetic anoxia; hypolimnetic withdrawal; Lake Burgäschi, Switzerland; Phosphorus fractions; Relative absorption band depth
    Type: Dataset
    Format: text/tab-separated-values, 10772 data points
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  • 5
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    XRF element data of core Burg17-B (2019)
    PANGAEA
    Details
    Publication Date: 2023-12-18
    Keywords: Aluminium; Burg17-B; Calcium; deep lakes; DEPTH, sediment/rock; eutrophication; GCUWI; Gravity corer, UWITEC; hypolimnetic anoxia; hypolimnetic withdrawal; Iron; Iron/Manganese ratio; Iron/Titanium ratio; Lake Burgäschi, Switzerland; Magnesium; Manganese; Phosphorus; Phosphorus fractions; Potassium; Relative absorption band depth; Rubidium; Silicon; Titanium; Zone
    Type: Dataset
    Format: text/tab-separated-values, 21070 data points
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  • 6
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    Radionuclides of core Burg17-B (2019)
    PANGAEA
    Details
    Publication Date: 2023-12-18
    Keywords: Americium-241, error; Americium-241 activity per mass; Burg17-B; Caesium-137, activity per mass; Caesium-137, error; Comment; Cumulative mass; deep lakes; DEPTH, sediment/rock; eutrophication; GCUWI; Gravity corer, UWITEC; hypolimnetic anoxia; hypolimnetic withdrawal; Lake Burgäschi, Switzerland; Lead-210; Lead-210, error; Lead-210 excess; Lead-210 excess, error; Lead-210 excess inventory, cumulative; Lead-210 excess inventory, cumulative, error; Phosphorus fractions; Radium-226; Radium-226, error
    Type: Dataset
    Format: text/tab-separated-values, 322 data points
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  • 7
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    210Pb chronology of sediment core Burg17-B (2019)
    PANGAEA
    Details
    Publication Date: 2023-12-18
    Keywords: Accumulation rate per year; Age; AGE; Age, error; Burg17-B; Constant rate of supply model; Converted from Age [a AD]; DEPTH, sediment/rock; GCUWI; Gravity corer, UWITEC; Lake Burgäschi, Switzerland
    Type: Dataset
    Format: text/tab-separated-values, 149 data points
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  • 8
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    Phosphorus fractions of core Burg17-C (2019)
    PANGAEA
    Details
    Publication Date: 2024-02-24
    Keywords: Aluminium; Burg17-C; Calcium; Carbon, inorganic, total; Carbon, organic, total; Carbon, organic, total/Nitrogen, total ratio; deep lakes; DEPTH, sediment/rock; eutrophication; GCUWI; Gravity corer, UWITEC; hypolimnetic anoxia; hypolimnetic withdrawal; Iron; Iron/Manganese ratio; Iron/Titanium ratio; Lake Burgäschi, Switzerland; Magnesium; Manganese; Phosphorus; Phosphorus, aluminium and iron bound; Phosphorus, calcium bound; Phosphorus, loosely bound; Phosphorus, organic, refractory; Phosphorus, redox-sensitive; Phosphorus fractions; Potassium; Relative absorption band depth; Rubidium; Sequential extraction (Tu et al., 2019); Silicon; Sulfur, total; Titanium
    Type: Dataset
    Format: text/tab-separated-values, 995 data points
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  • 9
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    GDGT concentrations in ELSA stack samples of the Eifel volcanic field, Germany (2024)
    PANGAEA
    Details
    Publication Date: 2024-04-11
    Description: Isoprenoid and branched GDGTs were measured in soils and lake sediment samples from the Eifel Volcanic field. The modern samples were used to understand sources of GDGTs in sediments, while sediment core samples from Schalkenmehrener Maar, Holzmaar, and Auel Maar were used to reconstruct temperatures during the past 60,000 years. Age model information and additional proxy data from the ELSA-20 stack are found in Sirocko et al., 2021 and Sirocko et al., 2022
    Keywords: Age; AU3; AU4; Aueler Maar, Eifel, Germany; BayMBT - Bayesian calibration for the branched GDGT MBT5Me proxy; Branched glycerol dialkyl glycerol tetraether, Ia; Branched glycerol dialkyl glycerol tetraether, Ib; Branched glycerol dialkyl glycerol tetraether, Ic; Branched glycerol dialkyl glycerol tetraether, IIa; Branched glycerol dialkyl glycerol tetraether, IIa'; Branched glycerol dialkyl glycerol tetraether, IIb; Branched glycerol dialkyl glycerol tetraether, IIb'; Branched glycerol dialkyl glycerol tetraether, IIc; Branched glycerol dialkyl glycerol tetraether, IIc'; Branched glycerol dialkyl glycerol tetraether, IIIa; Branched glycerol dialkyl glycerol tetraether, IIIa'; Branched glycerol dialkyl glycerol tetraether, IIIa''; Branched glycerol dialkyl glycerol tetraether, IIIb; Branched glycerol dialkyl glycerol tetraether, IIIb'; Branched glycerol dialkyl glycerol tetraether, IIIc; Branched glycerol dialkyl glycerol tetraether, IIIc'; Cable Core Drilling; Calculated according to Raberg et al. (2021); CCD; Comment; Crenarchaeol; Crenarchaeol isomer; DEPTH, sediment/rock; Elevation of event; ELSA_AU3; ELSA_AU4; ELSA_HM3; ELSA_HM4; ELSA_SMf1; ELSA_SMf2; Europe; Event label; FRC; Freeze corer; GDGTs; High Performance Liquid Chromatography (HPLC); HM3; HM4; Holzmaar, Eifel, Germany; Isoprenoid acyclic glycerol dialkyl glycerol tetraether; Isoprenoid dicyclic glycerol dialkyl glycerol tetraether; Isoprenoid monocyclic glycerol dialkyl glycerol tetraether; Isoprenoid tricyclic glycerol dialkyl glycerol tetraether; Lacustrine-palustrine sediment; Latitude of event; Longitude of event; Paleoclimate; PCUWI; Piston corer, UWITEC; Sample ID; Sample mass; Schalkenmehrener Maar, Eifel, Germany; SMf1; SMf2; Temperature, air, mean of months, above freezing
    Type: Dataset
    Format: text/tab-separated-values, 9508 data points
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  • 10
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    GDGTs in modern soils and lake sediments, Eifel volcanic field, Germany (2024)
    PANGAEA
    Details
    Publication Date: 2024-04-11
    Description: Isoprenoid and branched GDGTs were measured in soils and lake sediment samples from the Eifel Volcanic field. The modern samples were used to understand sources of GDGTs in sediments, while sediment core samples from Schalkenmehrener Maar, Holzmaar, and Auel Maar were used to reconstruct temperatures during the past 60,000 years. Age model information and additional proxy data from the ELSA-20 stack are found in Sirocko et al., 2021 and Sirocko et al., 2022
    Keywords: BayMBT - Bayesian calibration for the branched GDGT MBT5Me proxy; Branched glycerol dialkyl glycerol tetraether, Ia; Branched glycerol dialkyl glycerol tetraether, Ib; Branched glycerol dialkyl glycerol tetraether, Ic; Branched glycerol dialkyl glycerol tetraether, IIa; Branched glycerol dialkyl glycerol tetraether, IIa'; Branched glycerol dialkyl glycerol tetraether, IIb; Branched glycerol dialkyl glycerol tetraether, IIb'; Branched glycerol dialkyl glycerol tetraether, IIc; Branched glycerol dialkyl glycerol tetraether, IIc'; Branched glycerol dialkyl glycerol tetraether, IIIa; Branched glycerol dialkyl glycerol tetraether, IIIa'; Branched glycerol dialkyl glycerol tetraether, IIIa''; Branched glycerol dialkyl glycerol tetraether, IIIb; Branched glycerol dialkyl glycerol tetraether, IIIb'; Branched glycerol dialkyl glycerol tetraether, IIIc; Branched glycerol dialkyl glycerol tetraether, IIIc'; Calculated according to Raberg et al. (2021); Crenarchaeol; Crenarchaeol isomer; DEPTH, sediment/rock; Elevation of event; ELSA_GMF; ELSA_HM3; ELSA_SMf1; ELSA_SMf2; Europe; Event label; FRC; Freeze corer; GDGTs; Gemündener Maar, Eifel, Germany; GM_soil; High Performance Liquid Chromatography (HPLC); HM_soil; HM_surface; HM3; Holzmaar, Eifel, Germany; Isoprenoid acyclic glycerol dialkyl glycerol tetraether; Isoprenoid dicyclic glycerol dialkyl glycerol tetraether; Isoprenoid monocyclic glycerol dialkyl glycerol tetraether; Isoprenoid tricyclic glycerol dialkyl glycerol tetraether; Lacustrine-palustrine sediment; Lake, water depth; Latitude of event; Longitude of event; Paleoclimate; PCUWI; Piston corer, UWITEC; Sample ID; Sample mass; Sample type; Schalkenmehrener Maar, Eifel, Germany; Sediment Grabber; SGRAB; Site; SM_soil; SM_surface; SMf1; SMf2; SOILS; Soil sample; Temperature, air, mean of months, above freezing; Weinfelder Maar, Eifel, Germany; WM_soil
    Type: Dataset
    Format: text/tab-separated-values, 1424 data points
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