Post-IR Irsl Chronology of Paleo-Lacustrine Sediments from Yardangs in the Qaidam Basin, NE Tibetan Plateau
, , , , , et | 31 déc. 2021
Publié en ligne: 31 déc. 2021
Pages: 313 - 324
Reçu: 15 févr. 2019
Accepté: 15 avr. 2020
© 2019 Zhaojing Ding et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
The results corrected by Huntley (2006) method.
Function |
Sample |
IRSL50 |
(n/N) |
(n/N)_SS |
Measured Dea (Gy) |
Corrected D0b (Gy) |
Corrected Dec (Gy) |
Corrected Aged (ka) |
1EXP |
YD6-B |
0.54±0.02 |
0.60±0.13 |
397±16 |
372±1 |
973±124 |
240±34 |
YD7-B |
0.43±0.01 |
0.58±0.14 |
345±11 |
465±1 |
642±29 |
229.0±19 |
YD7-C |
0.52±0.02 |
0.59±0.13 |
429±18 |
422±1 |
981±85 |
236±25.8 |
YD8-B |
0.48±0.01 |
0.57±0.14 |
427±14 |
479±1 |
886±49 |
330±29 |
YD9-B |
0.44±0.01 |
0.59±0.14 |
364±10 |
467±1 |
700±27 |
271±21 |
GOK |
YD6-B |
0.46±0.02 |
0.60±0.17 |
401±20 |
362±1 |
1040±110 |
256±32 |
YD7-B |
0.37±0.01 |
0.60±0.16 |
345±12 |
501±2 |
673±30 |
240±19 |
YD7-C |
0.34±0.01 |
0.62±0.15 |
423±21 |
463±3 |
1070±82 |
257±26 |
YD8-B |
0.40±0.01 |
0.57±0.12 |
428±17 |
494±1 |
945±59 |
352±32 |
YD9-B |
0.32±0.01 |
0.59±0.12 |
365±11 |
583±1 |
733±31 |
284±23 |
Age results of MET-pIRIR250 with sample informations.
|
(a) MET-pIRIR250 of Feldspar |
(b) pIR50IR250 of Feldspar |
Step |
Treatment |
Measured |
Treatment |
Measured |
1 |
Dose |
- |
Dose |
- |
2 |
Preheat 320°C for 60 s |
- |
Preheat 280°C for 60 s |
- |
3 |
IRSL 50°C for 100 s |
- |
IRSL 50°C for 500 s |
- |
4 |
IRSL 100°C for 100 s |
- |
IRSL 250°C for 500 s |
Lx |
5 |
IRSL 150°C for 100 s |
- |
Test dose |
- |
6 |
IRSL 200°C for 100 s |
- |
Preheat 280°C for 60 s |
- |
7 |
IRSL 250°C for 100 s |
Lx |
IRSL 50°C for 500 s |
- |
8 |
IRSL 290°C for 100 s |
- |
IRSL 250°C for 500 s |
Tx |
9 |
Test dose |
- |
Return to step 1 |
|
10 |
Preheat 320°C for 60 s |
- |
|
|
11 |
IRSL 50°C for 100 s |
- |
|
|
12 |
IRSL 100°C for 100 s |
- |
|
|
13 |
IRSL 150°C for 100 s |
- |
|
|
14 |
IRSL 200°C for 100 s |
- |
|
|
15 |
IRSL 250°C for 100 s |
Tx |
|
|
16 |
IRSL 290°C for 100 s |
- |
|
|
17 |
IRSL 320°C for 100 s |
- |
|
|
18 |
Return to step 1 |
|
|
|