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Holocene OSL Chronology of Flu-Lacustrine Sediments in Yangtze River Basin, Wuhan Area, China

Chuanyi Wei
Chuanyi Wei
, 
Huasong Zhang
Huasong Zhang
, 
Chang’an Li
Chang’an Li
, 
Yufen Zhang
Yufen Zhang
, 
Yawei Li
Yawei Li
, 
Mingming Jia
Mingming Jia
, 
Guoqing Li
Guoqing Li
 e 
Yonghui Leng
Yonghui Leng
   | 31 dic 2021
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Pubblicato online: 31 dic 2021
Pagine: 284 - 293
Ricevuto: 20 dic 2018
Accettato: 07 nov 2019
DOI: https://doi.org/10.2478/geochr-2020-0012
Parole chiave
© 2018 Chuanyi Wei et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Fig. 1

Location of core HH-2017. a) and b) Wuhan area located in middle Yangtze River Basin is dominated by East Asian monsoon; c) map showing hundreds of lakes and rivers developed in Wuhan area; core HH-2017 was drilled in left bank of Yangtze River.
Location of core HH-2017. a) and b) Wuhan area located in middle Yangtze River Basin is dominated by East Asian monsoon; c) map showing hundreds of lakes and rivers developed in Wuhan area; core HH-2017 was drilled in left bank of Yangtze River.

Fig. 2

Drilling information and profile sketches locating the stratigraphic sampling location for the OSL dating. Before 4.25 m, it is artificial backfill layer while it is gravel layer after 38.55 m; thus, 20 samples totally were collected for OSL dating from 4.25 to 38.55 m.
Drilling information and profile sketches locating the stratigraphic sampling location for the OSL dating. Before 4.25 m, it is artificial backfill layer while it is gravel layer after 38.55 m; thus, 20 samples totally were collected for OSL dating from 4.25 to 38.55 m.

Fig. 3

Luminescence characteristics of sample HH-2017-12 under different preheat temperature. a) preheat plateau tests; b) dose recovery test; c) recycling ratio; and d) thermo transfer ratio.
Luminescence characteristics of sample HH-2017-12 under different preheat temperature. a) preheat plateau tests; b) dose recovery test; c) recycling ratio; and d) thermo transfer ratio.

Fig. 4

Growth and decay curves of sample HH-2017-10 and HH-2017-23.
Growth and decay curves of sample HH-2017-10 and HH-2017-23.

Fig. 5

Plot of OSL ages against the depth of core HH-2017.
Plot of OSL ages against the depth of core HH-2017.

Sample number and its sampling depth as well as environmental radioactivity and OSL dating results of HH-2017.

Sample ID Depth (m) Dating grain size (μm) K (%) Th (ppm) U (ppm) Water content (%) No. of aliquots Dose rate (Gy/ka) Final De (Gy) OSL age (ka)
HH-2017-01 4.25 4 ∼ 11 2.52 ± 0.07 15.70 ± 0.42 2.94 ± 0.11 29 ± 5 11b 3.1 ± 0.2 2.6 ± 0.3 0.8 ± 0.1
HH-2017-02 5.17 4 ∼ 11 2.71 ± 0.08 15.00 ± 0.40 2.66 ± 0.10 27 ± 5 12b 3.3 ± 0.2 1.1 ± 0.1 0.4 ± 0.0
HH-2017-03 6.25 4 ∼ 11 2.45 ± 0.07 13.60 ± 0.38 3.32 ± 0.13 30 ± 5 12b 3.0 ± 0.2 2.5 ± 0.1 0.8 ± 0.1
HH-2017-04 7.25 4 ∼ 11 2.59 ± 0.08 15.60 ± 0.42 2.89 ± 0.11 35 ± 5 12b 2.8 ± 0.2 2.7 ± 0.0 1.0 ± 0.1
HH-2017-05 8.28 4 ∼ 11 2.23 ± 0.07 14.20 ± 0.38 2.40 ± 0.10 27 ± 5 12b 2.8 ± 0.2 2.2 ± 0.1 0.8 ± 0.1
HH-2017-06 10.05 38 ∼ 63 1.75 ± 0.06 13.80 ± 0.39 2.38 ± 0.10 35 ± 5 6a+11b 2.0 ± 0.1 8.0 ± 0.2 3.9 ± 0.2
HH-2017-07 12.56 38 ∼ 63 2.03 ± 0.06 11.40 ± 0.32 2.15 ± 0.09 26 ± 5 6a+12b 2.4 ± 0.2 12.6 ± 0.2 5.2 ± 0.4
HH-2017-08 13.59 38 ∼ 63 1.88 ± 0.06 12.30 ± 0.34 2.13 ± 0.09 26 ± 5 6a+12b 2. 4 ± 0.2 12.0 ± 0.3 5.1 ± 0.4
HH-2017-09 14.24 38 ∼ 63 2.07 ± 0.06 14.60 ± 0.39 2.40 ± 0.09 28 ± 5 6a+12b 2. 6 ± 0.2 12.5 ± 0.2 4.9 ± 0.4
HH-2017-10 15.41 90 ∼ 125 1.92 ± 0.06 10.70 ± 0.31 2.11 ± 0.09 30 ± 5 6a+12b 2.2 ± 0.2 14.0 ± 0.5 6.6 ± 0.5
HH-2017-11 16.53 90 ∼ 125 1.65 ± 0.05 8.50 ± 0.26 1.45 ± 0.07 24 ± 5 6a+12b 1.9 ± 0.1 12.1 ± 0.3 6.3 ± 0.5
HH-2017-12 17.70 90 ∼ 125 1.64 ± 0.05 7.90 ± 0.25 1.88 ± 0.08 25 ± 5 6a+12b 1.9 ± 0.1 11.5 ± 0.2 6.0 ± 0.4
HH-2017-13 18.90 90 ∼ 125 1.44 ± 0.05 12.90 ± 0.36 1.97 ± 0.09 22 ± 5 5a+12b 2.2 ± 0.2 15.3 ± 0.5 7.1 ± 0.5
HH-2017-15 22.34 90 ∼ 125 1.50 ± 0.05 10.00 ± 0.29 1.47 ± 0.07 21 ± 5 5a+12b 2.0 ± 0.1 11.9 ± 0.4 6.1 ± 0.5
HH-2017-17 24.74 90 ∼ 125 1.61 ± 0.05 11.00 ± 0.31 1.52 ± 0.07 24 ± 5 6a+11b 2.0 ± 0.1 13.9 ± 0.8 6.9 ± 0.6
HH-2017-19 27.01 90 ∼ 125 2.11 ± 0.06 6.84 ± 0.23 1.12 ± 0.06 27 ± 5 6a+12b 2.0 ± 0.2 16.0 ± 0.6 8.0 ± 0.7
HH-2017-21 34.11 90 ∼ 125 1.69 ± 0.06 6.53 ± 0.22 1.11 ± 0.06 17 ± 5 6a+12b 2.0 ± 0.2 16.1 ± 0.8 8.2 ± 0.7
HH-2017-22 35.26 90 ∼ 125 2.00 ± 0.06 13.50 ± 0.38 3.04 ± 0.12 21 ± 5 6a+12b 2. 9 ± 0.2 28.0 ± 1.0 10.0 ± 0.8
HH-2017-23 35.95 90 ∼ 125 1.90 ± 0.06 12.50 ± 0.35 2.17 ± 0.09 22 ± 5 6a+12b 2.6 ± 0.2 22.5 ± 0.6 8.9 ± 0.7
HH-2017-25 38.55 90 ∼ 125 2.25 ± 0.06 7.74 ± 0.25 1.40 ± 0.07 10 ± 5 6a+6b 2.8 ± 0.2 21.8 ± 0.9 7.9 ± 0.7
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