Katsuta, Nagayoshi: Combined ages of excess 210Pb and 137Cs of sediment core JSP-1 from Lake Jingpo, northeast China [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.974365 (dataset in review), In: Katsuta, N: Sedimentary records of chemical weathering intensity in Lake Jingpo, northeast China [dataset bundled publication]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.974362 (dataset in review)
Abstract:
Due to changing East Asian summer monsoon (EASM) during Holocene, the sediment cores were collected in Lake Jingpo in northeast China and were investigated to understand the variability of EASM precipitation and its possible mechanism. Sediment cores JB-A (9.76 m) and JPS-1 (0.32 m) were collected in August 2012 using the piston corer and gravity core sampler, respectively. The ages of JB-A and JPS-1 cores are 6092 years and 100 years based on the14C dates and the combined ages of excess 210Pb and 137Cs. Geochemical proxies of EASM precipitation were reconstructed by elemental compositions such as SiO2, TiO2, Al2O3, Fe2O3, MnO, CaO, Na2O, K2O, P2O5, CIA, and LOI, analyzed with the glass-bead XRF quantitative method.
Related to:
Katsuta, Nagayoshi; et al. (submitted): Westerly Jet and ENSO-Driven Variability in East Asian Summer Monsoon Precipitation in Northeast China since the Mid-Holocene.
Funding:
Japan Society for the Promotion of Science (JSPS), grant/award no. 16H05643: Relationship between water resource and environmental change investigated by saline lake level changes
Japan Society for the Promotion of Science (JSPS), grant/award no. 17H05128: Climatic impact on terrestrial environments and human migration in central Asia investigated by high-resolution analyses of lacustrine sediment core
Japan Society for the Promotion of Science (JSPS), grant/award no. 22H00560: Holocene terrestrial response to climate changes by high resolution analyses of freshwater lake sediments
Coverage:
Latitude: 43.986690 * Longitude: 129.031674
Date/Time Start: 2012-08-01T00:00:00 * Date/Time End: 2012-08-31T00:00:00
Minimum DEPTH, sediment/rock: 0.0075 m * Maximum DEPTH, sediment/rock: 0.3175 m
Event(s):
Comment:
The study was further supported by the Japan Geographic Data Center https://www.kokudo.or.jp/grant/.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample code/label | Sample label | Katsuta, Nagayoshi | Sample Name | ||
| 2 | DEPTH, sediment/rock | Depth sed | m | Katsuta, Nagayoshi | Geocode | |
| 3 | Depth, top/min | Depth top | m | Katsuta, Nagayoshi | ||
| 4 | Depth, bottom/max | Depth bot | m | Katsuta, Nagayoshi | ||
| 5 | Lead-210 | 210Pb | Bq/kg | Katsuta, Nagayoshi | 46.5 keV | |
| 6 | Lead-210, standard deviation | 210Pb std dev | ± | Katsuta, Nagayoshi | ||
| 7 | Lead-214 | 214Pb | Bq/kg | Katsuta, Nagayoshi | 352 keV | |
| 8 | Lead-214, standard deviation | 214Pb std dev | ± | Katsuta, Nagayoshi | ||
| 9 | Lead-210 excess | 210Pb xs | Bq/kg | Katsuta, Nagayoshi | ||
| 10 | Lead-210 excess, standard deviation | 210Pb xs std dev | ± | Katsuta, Nagayoshi | ||
| 11 | Caesium-137 | 137Cs | Bq/kg | Katsuta, Nagayoshi | 661 keV | |
| 12 | Caesium-137, standard deviation | 137Cs std dev | ± | Katsuta, Nagayoshi | ||
| 13 | Comment | Comment | Katsuta, Nagayoshi | Caesium-137 | ||
| 14 | Potassium-40 | 40K | Bq/kg | Katsuta, Nagayoshi | 1461 keV | |
| 15 | Potassium-40, standard deviation | 40K std dev | ± | Katsuta, Nagayoshi |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
514 data points