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Variation of OSL residual doses in terms of coarse and fine grain modern sediments along the Hungarian section of the Danube

Orsolya Tóth
Orsolya Tóth
, 
György Sipos
György Sipos
, 
Tímea Kiss
Tímea Kiss
 and 
Tamás Bartyik
Tamás Bartyik
   | Dec 29, 2017
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Published Online: Dec 29, 2017
Page range: 319 - 330
Received: Jul 20, 2016
Accepted: Sep 21, 2017
DOI: https://doi.org/10.1515/geochr-2015-0079
Keywords
© 2016 O. Tóth.
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Fig. 1

The location of sampling sites along the Hungarian section of the Danube.
The location of sampling sites along the Hungarian section of the Danube.

Fig. 2

Sandy coarse (A) and silty-clayey fine (B) sediments deposited by the 2013 flood.
Sandy coarse (A) and silty-clayey fine (B) sediments deposited by the 2013 flood.

Fig. 3

Results of the preheat-cutheat test on sample D5/coarse, and D5/fine. A) and B) recycling ratio and recuperation, C) and D) dose recovery ratio. Each point is the average of 3 aliquots, error bars refer to the standard error of results.
Results of the preheat-cutheat test on sample D5/coarse, and D5/fine. A) and B) recycling ratio and recuperation, C) and D) dose recovery ratio. Each point is the average of 3 aliquots, error bars refer to the standard error of results.

Fig. 4

Thermal transfer in coarse and fine grain samples at different temperatures.
Thermal transfer in coarse and fine grain samples at different temperatures.

Fig. 5

The values of coarse and fine grain TT along the investigated longitudinal section of the Danube.
The values of coarse and fine grain TT along the investigated longitudinal section of the Danube.

Fig. 6

The residual dose in modern coarse grain sediments along the investigated river reach of the Danube.
The residual dose in modern coarse grain sediments along the investigated river reach of the Danube.

Fig. 7

The residual dose in modern fine grain sediments along the investigated river reach of the Danube.
The residual dose in modern fine grain sediments along the investigated river reach of the Danube.

Fig. 8

The location of erodible loess bluffs and sampling points along the downstream part of the investigated Danube reach.
The location of erodible loess bluffs and sampling points along the downstream part of the investigated Danube reach.

The arrangement and measurement parameters of the two phase TT test (phase 1 adopted from Truelsen and Wallinga, 2003).

StepTT test, phase 1TT test, phase 2
preOptical bleaching (Stimulation 200 s at 120°C)
1Optical and thermal bleaching (Stimulation 200 s at 280°C)Optical and thermal bleaching (Stimulation 200 s at 280°C)
2-Regeneration doses (0.8 – 1.7 – 2.5 Gy)-Regeneration doses (0.8 – 1.7 – 2.5 Gy)
3Preheat (120–300°C, 20°C steps)Preheat (200°C)Preheat (120–300°C, 20°C steps)Preheat (200°C)
4OSL measurement (Stimulation 40 s at 125°C)OSL measurement (Stimulation 40 s at 125°C)OSL measurement (Stimulation 40 s at 125°C)OSL measurement (Stimulation 40 s at 125°C)
5Test dose (1.7 Gy)Test dose (1.7 Gy)Test dose (1.7 Gy)Test dose (1.7 Gy)
6Cutheat (160°C)Cutheat (160°C)Cutheat (160°C)Cutheat (160°C)
7OSL measurement (Stimulation 40 s at 125°C)OSL measurement (Stimulation 40 s at 125°C)OSL measurement (Stimulation 40 s at 125°C)OSL measurement (Stimulation 40 s at 125°C)

Equivalent dose, thermal transfer and corrected residual dose of the investigated modern samples.

Sample IDriver kmcoarse grainfine grain
De (Gy)TT (Gy)Dres (Gy)De (Gy)TT (Gy)Dres (Gy)
D118350.20 ± 0.210.03 ± 0.040.18 ± 0.21
D218300.24 ± 0.170.04 ± 0.060.20 ± 0.181.65 ± 0.46−0.02 ± 0.011.65 ± 0.46
D318250.26 ± 0.170.01 ± 0.030.24 ± 0.17
D418200.08 ± 0.150.08 ± 0.050.00 ± 0.160.56 ± 0.04−0.03 ± 0.010.56 ± 0.04
D518010.07 ± 0.060.25 ± 0.140.00 ± 0.150.43 ± 0.04−0.08 ± 0.020.43 ± 0.04
D617720.67 ± 0.12−0.01 ± 0.010.67 ± 0.12
D717680.27 ± 0.270.04 ± 0.030.23 ± 0.27
D817650.37 ± 0.050.02 ± 0.010.35 ± 0.05
D917550.86 ± 0.06−0.01 ± 0.010.86 ± 0.06
D1017500.04 ± 0.040.04 ± 0.030.00 ± 0.050.98 ± 0.09−0.17 ± 0.050.98 ± 0.09
D1117250.05 ± 0.080.00 ± 0.060.05 ± 0.100.46 ± 0.05−0.07 ± 0.010.46 ± 0.05
D1217150.27 ± 0.04−0.02 ± 0.010.27 ± 0.04
D1317120.88 ± 0.120.00 ± 0.010.88 ± 0.12
D1417000.56 ± 0.340.05 ± 0.120.52 ± 0.360.63 ± 0.090.03 ± 0.010.60 ± 0.09
D1516961.59 ± 0.270.01 ± 0.001.59 ± 0.27
D1616900.61 ± 0.040.00 ± 0.010.61 ± 0.04
D1716841.03 ± 0.10−0.05 ± 0.011.03 ± 0.10
D1816750.08 ± 0.050.03 ± 0.020.06 ± 0.060.77 ± 0.09−0.02 ± 0.010.77 ± 0.09
D1916700.05 ± 0.040.00 ± 0.040.05 ± 0.061.96 ± 0.260.04 ± 0.011.92 ± 0.26
D2016100.63 ± 0.10−0.06 ± 0.010.63 ± 0.10
D2116000.07 ± 0.040.01 ± 0.010.07 ± 0.041.27 ± 0.07−0.08 ± 0.031.27 ± 0.07
D2215970.17 ± 0.200.04 ± 0.010.13 ± 0.203.18 ± 0.16−0.03 ± 0.013.18 ± 0.16
D23159214.52 ± 0.520.03 ± 0.0114.50 ± 0.52
D2415700.03 ± 0.050.04 ± 0.04−0.01 ± 0.06
D2515650.09 ± 0.11−0.02 ± 0.010.09 ± 0.112.37 ± 0.170.01 ± 0.002.36 ± 0.17
D2615600.04 ± 0.040.03 ± 0.060.01 ± 0.077.55 ± 0.350.00 ± 0.017.55 ± 0.35
D27154513.11 ± 0.960.04 ± 0.0113.07 ± 0.96
D2815350.16 ± 0.160.00 ± 0.050.16 ± 0.172.50 ± 0.830.02 ± 0.012.48 ± 0.83
D2915220.87 ± 0.030.02 ± 0.010.85 ± 0.03
D3015100.07 ± 0.10−0.01 ± 0.110.07 ± 0.101.25 ± 0.03−0.01 ± 0.041.25 ± 0.03
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