Branched glycerol dialkyl glycerol tetraethers (brGDGTs) from a loess-paleosol sequence (Yuanbao) located at the western edge of the Chinese Loess Plateau over the past 130,000 years
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| Format: | Dataset Open Access |
| Langue: | en |
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PANGAEA
2024
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| _version_ | 1867169161796386816 |
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| author | Guo, Jingjing Fuchs, Louise Ziegler, Martin Sun, Youbin Peterse, Francien |
| author_facet | Guo, Jingjing Fuchs, Louise Ziegler, Martin Sun, Youbin Peterse, Francien |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | In this dataset, the loess proxies and branched glycerol dialkyl glycerol tetraethers (brGDGTs) from a loess-paleosol sequence (Yuanbao) located on the western edge of the Chinese Loess Plateau are included. In total, 872 loess and paleosol samples were investigated for loess proxies, and 580 samples were extracted for brGDGT records spanning the past 130,000 years. We reported 15 compounds of brGDGTs and three proxies based on the relative abundance of brGDGTs (i.e., methylation of 5-methyl brGDGTs, MBT'5Me; isomer ratio, IR; degree of cyclization, DC). The estimated temperature above freezing months based on MBT'5Me has also been reported using the Bayesian model. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_971325 |
| institution | PANGAEA |
| language | en |
| publishDate | 2024 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Branched glycerol dialkyl glycerol tetraethers (brGDGTs) from a loess-paleosol sequence (Yuanbao) located at the western edge of the Chinese Loess Plateau over the past 130,000 years Guo, Jingjing Fuchs, Louise Ziegler, Martin Sun, Youbin Peterse, Francien Age, dated; BayMBT - Bayesian calibration for the branched GDGT MBT5Me proxy; Branched glycerol dialkyl glycerol tetraether, Ia, fractional abundance; Branched glycerol dialkyl glycerol tetraether, Ib, fractional abundance; Branched glycerol dialkyl glycerol tetraether, Ic, fractional abundance; Branched glycerol dialkyl glycerol tetraether, IIa, fractional abundance; Branched glycerol dialkyl glycerol tetraether, IIa', fractional abundance; Branched glycerol dialkyl glycerol tetraether, IIb, fractional abundance; Branched glycerol dialkyl glycerol tetraether, IIb', fractional abundance; Branched glycerol dialkyl glycerol tetraether, IIc, fractional abundance; Branched glycerol dialkyl glycerol tetraether, IIc', fractional abundance; Branched glycerol dialkyl glycerol tetraether, IIIa, fractional abundance; Branched glycerol dialkyl glycerol tetraether, IIIa', fractional abundance; Branched glycerol dialkyl glycerol tetraether, IIIb, fractional abundance; Branched glycerol dialkyl glycerol tetraether, IIIb', fractional abundance; Branched glycerol dialkyl glycerol tetraether, IIIc, fractional abundance; Branched glycerol dialkyl glycerol tetraether, IIIc', fractional abundance; brGDGTs; China; Chinese loess; Degree of cyclisation; DEPTH, sediment/rock; East Asian monsoon; Isomer ratio; Methylation index of 5-methyl branched glycerol dialkyl glycerol tetraether; precipitation; Temperature; Temperature, air; YB19_Yuanbao_section In this dataset, the loess proxies and branched glycerol dialkyl glycerol tetraethers (brGDGTs) from a loess-paleosol sequence (Yuanbao) located on the western edge of the Chinese Loess Plateau are included. In total, 872 loess and paleosol samples were investigated for loess proxies, and 580 samples were extracted for brGDGT records spanning the past 130,000 years. We reported 15 compounds of brGDGTs and three proxies based on the relative abundance of brGDGTs (i.e., methylation of 5-methyl brGDGTs, MBT'5Me; isomer ratio, IR; degree of cyclization, DC). The estimated temperature above freezing months based on MBT'5Me has also been reported using the Bayesian model. |
| title | Branched glycerol dialkyl glycerol tetraethers (brGDGTs) from a loess-paleosol sequence (Yuanbao) located at the western edge of the Chinese Loess Plateau over the past 130,000 years |
| topic | Age, dated; BayMBT - Bayesian calibration for the branched GDGT MBT5Me proxy; Branched glycerol dialkyl glycerol tetraether, Ia, fractional abundance; Branched glycerol dialkyl glycerol tetraether, Ib, fractional abundance; Branched glycerol dialkyl glycerol tetraether, Ic, fractional abundance; Branched glycerol dialkyl glycerol tetraether, IIa, fractional abundance; Branched glycerol dialkyl glycerol tetraether, IIa', fractional abundance; Branched glycerol dialkyl glycerol tetraether, IIb, fractional abundance; Branched glycerol dialkyl glycerol tetraether, IIb', fractional abundance; Branched glycerol dialkyl glycerol tetraether, IIc, fractional abundance; Branched glycerol dialkyl glycerol tetraether, IIc', fractional abundance; Branched glycerol dialkyl glycerol tetraether, IIIa, fractional abundance; Branched glycerol dialkyl glycerol tetraether, IIIa', fractional abundance; Branched glycerol dialkyl glycerol tetraether, IIIb, fractional abundance; Branched glycerol dialkyl glycerol tetraether, IIIb', fractional abundance; Branched glycerol dialkyl glycerol tetraether, IIIc, fractional abundance; Branched glycerol dialkyl glycerol tetraether, IIIc', fractional abundance; brGDGTs; China; Chinese loess; Degree of cyclisation; DEPTH, sediment/rock; East Asian monsoon; Isomer ratio; Methylation index of 5-methyl branched glycerol dialkyl glycerol tetraether; precipitation; Temperature; Temperature, air; YB19_Yuanbao_section |
| url | https://doi.org/10.1594/PANGAEA.971325 |