API src

Grain size analysis of floodplain sediments from NEP 1, NEP 2, and NEP 3 from Nördlingen, southern Germany

Description: For grain size distribution of floodplain sediments, sediment samples were first sieved through a 2 mm diameter sieve. Samples less than 2 mm in diameter (10 g) were left overnight in 50 ml of 35 % hydrogen peroxide (H2O2) and heated the next day to remove organic matter. Subsequently, the samples were dispersed using 10 ml of 0.4 N sodium pyrophosphate solution (Na4P2O7) and got ultrasonic treatment for 45 minutes. Grain size analysis was performed for the sand fraction using the dry sieving technique (2000-630 µm: coarse sand, 630-200 µm: medium sand, 200-125 µm: fine sand, 125-63 µm: very fine sand). The finer fractions (63-20 µm: coarse silt, 20-6.3 µm: medium silt, 6.3-2.0 µm: fine silt, 2.0-0.6 µm: coarse clay, 0.6-0.2 µm: medium clay and <0.2 µm: fine clay) were measured by X-ray granulometry (XRG) using a SediGraph III 5120 (Micromeritics). Freely available program GRADISTAT v9.1 was used to calculate D50 (median of grain size), D75/D25 and D75-D25.

Global identifier: 

Doi(
    "10.1594/PANGAEA.972863",
)

Types: 
DataMeasurements(
    DataMeasurements {
        domain: Unspecified,
        station: None,
        measured_variables: [
            "DEPTH, soil",
            "Depth, soil, maximum",
            "Depth, soil, minimum",
            "Event label",
            "Grain quartile 75%/Grain quartile 25%",
            "Grain size, distribution, interquartile range",
            "Latitude of event",
            "Longitude of event",
            "Median, grain size",
            "Sample code/label",
            "Size fraction 0.0063-0.002 mm, fine silt",
            "Size fraction 0.020-0.0063 mm, medium silt",
            "Size fraction 0.063-0.020 mm, coarse silt",
            "Size fraction 0.125-0.063 mm, 3.0-4.0 phi, very fine sand",
            "Size fraction 0.200-0.125 mm, fine sand",
            "Size fraction 0.63-0.2 µm, medium clay",
            "Size fraction 0.630-0.200 mm, medium sand",
            "Size fraction 2-0.63 µm, coarse clay",
            "Size fraction 2.000-0.630 mm, coarse sand",
            "Size fraction < 0.2 µm, fine clay",
        ],
        methods: [
            "Dry sieving",
            "Particle Size Analyser, Micrometrics, SEDIGRAPH III 5120",
        ],
    },
)

Origins: /Wissenschaft/PANGAEA

Tags: Sand ? Deutschland ? Geografische Koordinaten ? Flussaue ? Siebanalyse ? Bodenprobe ? Ultraschall ? Sediment ? Eger River ? Eger floodplain ? Grain size data ? Nördlingen ? Southern Germany ? floodplain deposits ? overbank silt-clay deposition ?

Region: Southern Germany

Bounding boxes: 10.511505° .. 10.512653° x 48.867173° .. 48.868228° 10.71652° .. 10.71652° x 48.58781° .. 48.58781°

License: cc-by/4.0

Language: Englisch/English

Organisations

Persons

Issued: 2025-03-27

Modified: 2025-03-27

Time ranges: 2023-04-03 - 2023-04-03

Resources

Status

Quality score

Accessed 1 times.