Safaierad, Reza; Zolitschka, Bernd (2023): Grain size in Hashilan Wetland sediment core, western Iran [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.956302, In: Safaierad, Reza; Zolitschka, Bernd; Djamali, Morteza; Dupont, Lydie M; Vogt, Christoph; Matthews, Roger (2023): Pollen, grain size, loss-on-ignition, elemental and mineralogical composition, magnetic susceptibility and radiocarbon measurements in Hashilan Wetland sediment core [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.956292
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Published: 2023-06-30 • DOI registered: 2023-06-30
Abstract:
For grain size, prior to grain size analyses, OM was removed by H2O2 (30 %) and carbonates were destroyed with HCl (10 %) from samples. For dispersion, 20 ml of Calgon [(NaPO3)n] was added and agitated overnight. On the next day, analyses were performed with a laser diffraction particle-size analyzer (Beckman Coulter LS 200) after ultrasonic treatment for 30 s. Each sample was measured at least four times for 60 s until a stable distribution was reached. Thereafter, the arithmetic mean was calculated for the best three sample runs. Grain size distributions and all statistical grain size parameters were calculated from the output of the LS 200 as geometric graphical measures according to Folk and Ward (1957) with the MS Excel-based macro Gradistat, Version 8.0 (Blott and Pye, 2001). Analyses were carried out in the GEOPOLAR lab at the University of Bremen.
Keyword(s):
References:
Blott, Simon J; Pye, Kenneth (2001): GRADISTAT: a grain size distribution and statistics package for the analysis of unconsolidated sediments. Earth Surface Processes and Landforms, 26(11), 1237-1248, https://doi.org/10.1002/esp.261
Folk, Robert Louis; Ward, William C (1957): Brazos River bar [Texas]; a study in the significance of grain size parameters. Journal of Sedimentary Research, 27(1), 3-26, https://doi.org/10.1306/74D70646-2B21-11D7-8648000102C1865D
Coverage:
Latitude: 34.581940 * Longitude: 46.886940
Date/Time Start: 2016-11-10T00:00:00 * Date/Time End: 2016-11-10T00:00:00
Minimum DEPTH, sediment/rock: 1.05 m * Maximum DEPTH, sediment/rock: 3.95 m
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Safaierad, Reza | Geocode | |
| 2 | AGE | Age | ka BP | Safaierad, Reza | Geocode – cal. ka BP | |
| 3 | Texture | Texture | Safaierad, Reza | Textural group | ||
| 4 | Sediment type | Sediment | Safaierad, Reza | Sediment name | ||
| 5 | Grain size description | Grain size descr | Safaierad, Reza | Mean grainsize | ||
| 6 | Sorting description | Sort descr | Safaierad, Reza | |||
| 7 | Skewness description | Skew descr | Safaierad, Reza | |||
| 8 | Kurtosis description | Kurt descr | Safaierad, Reza | |||
| 9 | Size fraction 2.000-0.630 mm, coarse sand | 2000-630 µm | % | Safaierad, Reza | Beckman Coulter Laser diffraction particle size analyzer LS 200 | |
| 10 | Size fraction 0.063-0.002 mm, silt, mud | 63-2 µm | % | Safaierad, Reza | Beckman Coulter Laser diffraction particle size analyzer LS 200 | |
| 11 | Size fraction < 0.002 mm, clay | <2 µm | % | Safaierad, Reza | Beckman Coulter Laser diffraction particle size analyzer LS 200 | |
| 12 | Size fraction 1.000-0.500 mm, 0.0-1.0 phi, coarse sand | 1-0.5 mm | % | Safaierad, Reza | Beckman Coulter Laser diffraction particle size analyzer LS 200 | |
| 13 | Size fraction 0.500-0.250 mm, 1.0-2.0 phi, medium sand | 500-250 µm | % | Safaierad, Reza | Beckman Coulter Laser diffraction particle size analyzer LS 200 | |
| 14 | Size fraction 0.250-0.125 mm, 2.0-3.0 phi, fine sand | 250-125 µm | % | Safaierad, Reza | Beckman Coulter Laser diffraction particle size analyzer LS 200 | |
| 15 | Size fraction 0.125-0.063 mm, 3.0-4.0 phi, very fine sand | 125-63 µm | % | Safaierad, Reza | Beckman Coulter Laser diffraction particle size analyzer LS 200 | |
| 16 | Size fraction 0.063-0.032 mm, 4.0-5.0 phi, very coarse silt | 63-32 µm | % | Safaierad, Reza | Beckman Coulter Laser diffraction particle size analyzer LS 200 | |
| 17 | Size fraction 0.032-0.016 mm, 5.0-6.0 phi, coarse silt | 32-16 µm | % | Safaierad, Reza | Beckman Coulter Laser diffraction particle size analyzer LS 200 | |
| 18 | Size fraction 0.016-0.008 mm, 6.0-7.0 phi, medium silt | 16-8 µm | % | Safaierad, Reza | Beckman Coulter Laser diffraction particle size analyzer LS 200 | |
| 19 | Size fraction 0.008-0.004 mm, 7.0-8.0 phi, fine silt | 8-4 µm | % | Safaierad, Reza | Beckman Coulter Laser diffraction particle size analyzer LS 200 | |
| 20 | Size fraction 0.004-0.002 mm, 8.0-9.0 phi, very fine silt | 4-2 µm | % | Safaierad, Reza | Beckman Coulter Laser diffraction particle size analyzer LS 200 | |
| 21 | Grain size, mean | Grain size mean | µm | Safaierad, Reza | Beckman Coulter Laser diffraction particle size analyzer LS 200 | |
| 22 | Sorting | Sort | Safaierad, Reza | |||
| 23 | Skewness | Skew | Safaierad, Reza | |||
| 24 | Kurtosis | Kurt | Safaierad, Reza |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 3 (ProcLevel3)
Size:
1298 data points