Zhong, Wei; Xue, Jibin; Li, Xiaodong; Xu, Huajun; Ouyang, Yun (2010): (Table) Radiocarbon datings of sediment core BLK-1 obtained from Barkol Lake, China [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.792846, Supplement to: Zhong, W et al. (2010): A Holocene climatic record denoted by geochemical indicators from Barkol Lake in the northeastern Xinjiang, NW China. Geochemistry International, 48(8), 792-800, https://doi.org/10.1134/S0016702910080057
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Abstract:
The Barkol Lake, as a closed inland lake, is located at the northeast Xinjiang in northwest China. A combination of geochemical indicators including d18O and d13C of carbonate, TOC, carbonate contents, as well as grain size proxies and magnetic susceptibility of sediments obtained from a newly recovered section at this lake, provides a high-resolution history of climatic change in the past 9400 years. Multi-indicators reflect that Holocene climatic change in the study region generally follows the Westerly Wind pattern of Holocene, and three climatic periods can be identified. Between 9400 and 7500 cal a B.P., climate was characterized by relatively drier and colder condition. From 7500 to 5800 cal a B.P., a relatively warmer and moister climate prevailed, but between 5800 and 3500 cal a B.P., climate shifted towards warmer and drier conditions. A relatively colder and wetter climate prevailed during 3500~1000 cal a B.P., then it changed towards cold and dry between 1000 and 500 cal a B.P.; after 500 cal a B.P., climate changed towards warm and dry conditions again. This study reflects that during the Middle Holocene (from ca 7000 to 3500 cal a B.P.), variations of carbonate d18O of sediments from several lakes in the northern Xinjiang were synchronous with that of Qinghai Lake, where was strongly influenced by the South Asian monsoon; however, after 3500 cal a B.P. this consistency was interrupted, possibly resulting from a re-domination of the Westerly Wind and the retreat of South Asian monsoon in the northern Xinjiang.
Project(s):
Archive of Ocean Data (ARCOD)
Coverage:
Latitude: 43.700000 * Longitude: 92.833300
Date/Time Start: 2004-07-01T00:00:00 * Date/Time End: 2004-07-01T00:00:00
Minimum DEPTH, sediment/rock: 0.055 m * Maximum DEPTH, sediment/rock: 2.125 m
Event(s):
Comment:
Based on a previous study the 'reservoir' effect of Barkol Lake was determined to be 750 years.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample code/label | Sample label | Zhong, Wei | |||
| 2 | Sample ID | Sample ID | Zhong, Wei | lab no. | ||
| 3 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 4 | Depth, top/min | Depth top | m | Zhong, Wei | ||
| 5 | Depth, bottom/max | Depth bot | m | Zhong, Wei | ||
| 6 | Age, dated | Age dated | ka BP | Zhong, Wei | Age, 14C conventional | ka BP |
| 7 | Age, dated standard deviation | Age dated std dev | ± | Zhong, Wei | Age, 14C conventional | |
| 8 | Age, minimum/young | Age min | ka | Zhong, Wei | Age, 14C calibrated, CALIB 4 (Stuiver et al., 1998) | ka BP |
| 9 | Age, maximum/old | Age max | ka | Zhong, Wei | Age, 14C calibrated, CALIB 4 (Stuiver et al., 1998) | ka BP |
| 10 | Calendar age | Cal age | ka BP | Zhong, Wei | Age, 14C calibrated, CALIB 4 (Stuiver et al., 1998) | |
| 11 | Age, dated material | Dated material | Zhong, Wei | TOC = total organic carbon |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
70 data points
Data
| 1 Sample label | 2 Sample ID | 3 Depth sed [m] | 4 Depth top [m] | 5 Depth bot [m] | 6 Age dated [ka BP] | 7 Age dated std dev [±] | 8 Age min [ka] | 9 Age max [ka] | 10 Cal age [ka BP] | 11 Dated material |
|---|---|---|---|---|---|---|---|---|---|---|
| BLK-1-243-246 | LZU 05-44-1 | 0.055 | 0.04 | 0.07 | 0.907 | 0.063 | 0.698 | 0.930 | 0.8140 | TOC |
| BLK-2-J231-234 | LZU 05-43 | 0.175 | 0.16 | 0.19 | 1.590 | 0.065 | 1.344 | 1.686 | 1.5150 | TOC |
| BLK-3-198-200 | LZU 05-42-1 | 0.510 | 0.50 | 0.52 | 2.245 | 0.058 | 2.125 | 2.350 | 2.2375 | TOC |
| BLK-4-170-173 | LZU 05-41-2 | 0.785 | 0.77 | 0.80 | 3.422 | 0.060 | 3.486 | 3.839 | 3.6625 | TOC |
| BLK-5-142-145 | LZU 05-40 | 1.065 | 1.05 | 1.08 | 4.340 | 0.060 | 4.823 | 5.266 | 5.0445 | TOC |
| BLK-6-110-113 | LZU 05-39 | 1.385 | 1.37 | 1.40 | 5.166 | 0.065 | 5.742 | 6.176 | 5.9590 | TOC |
| BLK-8-040-03 5 | LZU 05-37-1 | 2.125 | 2.10 | 2.15 | 8.111 | 0.072 | 8.774 | 9.280 | 9.0270 | TOC |