Grain-size and biogenic silica of sediment core JB-A from Lake Jingpo, northeast China
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| Formato: | Dataset Open Access |
| Lenguaje: | en |
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PANGAEA
2026
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| _version_ | 1867172417638498304 |
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| author | Katsuta, Nagayoshi |
| author_facet | Katsuta, Nagayoshi |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Due to changing East Asian summer monsoon (EASM) and East Asian winter monsoon (EAWM) 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. Multi-proxies of EAWM wind strength were reconstructed from the Mn/Fe ratio, grain-sizes, and biogenic silica, analyzed with the glass-bead XRF quantitative method, the laser diffraction, and the ICP-AES, respectively. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_991459 |
| institution | PANGAEA |
| language | en |
| publishDate | 2026 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Grain-size and biogenic silica of sediment core JB-A from Lake Jingpo, northeast China Katsuta, Nagayoshi 14C dating; AGE; CIA; DEPTH, sediment/rock; Dust, aeolian; Grain size, mean; Inductively coupled plasma atomic emission spectroscope (ICP-AES); JB-A; Lake Jingpo; Lake Jinpo; Laser diffraction particle size analyser; Northeast China; Opal, biogenic silica; PC; Piston corer; Sedimentary geochemistry Due to changing East Asian summer monsoon (EASM) and East Asian winter monsoon (EAWM) 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. Multi-proxies of EAWM wind strength were reconstructed from the Mn/Fe ratio, grain-sizes, and biogenic silica, analyzed with the glass-bead XRF quantitative method, the laser diffraction, and the ICP-AES, respectively. |
| title | Grain-size and biogenic silica of sediment core JB-A from Lake Jingpo, northeast China |
| topic | 14C dating; AGE; CIA; DEPTH, sediment/rock; Dust, aeolian; Grain size, mean; Inductively coupled plasma atomic emission spectroscope (ICP-AES); JB-A; Lake Jingpo; Lake Jinpo; Laser diffraction particle size analyser; Northeast China; Opal, biogenic silica; PC; Piston corer; Sedimentary geochemistry |
| url | https://doi.org/10.1594/PANGAEA.991459 |