(Table T1) N-alkane, n-alcohol and n-fatty acid concentrations in ODP Site 184-1147 and 184-1148 sediments
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| Sprache: | en |
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PANGAEA
2004
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| _version_ | 1867169995810668544 |
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| author | Peng, Pingan Yu, Chiling Jia, Guodong Hu, Jianfang Song, Jianzhong Zhang, Gan |
| author_facet | Peng, Pingan Yu, Chiling Jia, Guodong Hu, Jianfang Song, Jianzhong Zhang, Gan |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Lipid compositions of sediments recovered during Ocean Drilling Program Leg 184 in the South China Sea have been identified and quantified. The identified lipids can be ascribed to terrigenous and marine sources. Terrigenous lipids are mainly C27, C29, C31 n-alkanes, C26, C28, C30 n-fatty acids, and n-alcohols, which were derived from leaf waxes of higher land plants and transported to the sea by airborne dust or fresh water. Marine lipids, mainly C37 and C38 alkenones, C30 diol, and C30 and C32 keto-ols, were from microalgae, notably haptophytes and eustigmatophytes. Elevated concentrations and accumulation rates of both terrigenous and marine lipids in the interval 202-245 meters composite depth (mcd) and 0-166 mcd were postulated to be related to the development of the East Asian monsoon at 6-8 Ma and enhanced variations of the developed East Asian monsoon after 3.2 Ma, respectively. The pronounced late Oligocene input of terrigenous lipids reflects the paleoenvironment of a newly opened, narrow basin, with restricted ocean waters and the proximity of continental runoff. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_785032 |
| institution | PANGAEA |
| language | en |
| publishDate | 2004 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | (Table T1) N-alkane, n-alcohol and n-fatty acid concentrations in ODP Site 184-1147 and 184-1148 sediments Peng, Pingan Yu, Chiling Jia, Guodong Hu, Jianfang Song, Jianzhong Zhang, Gan 184-1147; 184-1148; Alkenone, C37:2Me; Alkenone, C37:3Me; Alkenone, C38:2Et; Alkenone, C38:2Me; C30 diol; COMPCORE; Composite Core; Depth, composite; DEPTH, sediment/rock; DSDP/ODP/IODP sample designation; Event label; Gas chromatography - Mass spectrometry (GC-MS); Joides Resolution; Keto-ol, C30, per unit sediment mass; Keto-ol, C32, per unit sediment mass; Leg184; Long-chain fatty acids C26+C28+C30, per unit sediment mass; n-Alkanes C27+C29+C31, per unit sediment mass; n-Alkanol long chain alcohols C26+C28+C30, per unit sediment mass; Ocean Drilling Program; ODP; Sample code/label; South China Sea Lipid compositions of sediments recovered during Ocean Drilling Program Leg 184 in the South China Sea have been identified and quantified. The identified lipids can be ascribed to terrigenous and marine sources. Terrigenous lipids are mainly C27, C29, C31 n-alkanes, C26, C28, C30 n-fatty acids, and n-alcohols, which were derived from leaf waxes of higher land plants and transported to the sea by airborne dust or fresh water. Marine lipids, mainly C37 and C38 alkenones, C30 diol, and C30 and C32 keto-ols, were from microalgae, notably haptophytes and eustigmatophytes. Elevated concentrations and accumulation rates of both terrigenous and marine lipids in the interval 202-245 meters composite depth (mcd) and 0-166 mcd were postulated to be related to the development of the East Asian monsoon at 6-8 Ma and enhanced variations of the developed East Asian monsoon after 3.2 Ma, respectively. The pronounced late Oligocene input of terrigenous lipids reflects the paleoenvironment of a newly opened, narrow basin, with restricted ocean waters and the proximity of continental runoff. |
| title | (Table T1) N-alkane, n-alcohol and n-fatty acid concentrations in ODP Site 184-1147 and 184-1148 sediments |
| topic | 184-1147; 184-1148; Alkenone, C37:2Me; Alkenone, C37:3Me; Alkenone, C38:2Et; Alkenone, C38:2Me; C30 diol; COMPCORE; Composite Core; Depth, composite; DEPTH, sediment/rock; DSDP/ODP/IODP sample designation; Event label; Gas chromatography - Mass spectrometry (GC-MS); Joides Resolution; Keto-ol, C30, per unit sediment mass; Keto-ol, C32, per unit sediment mass; Leg184; Long-chain fatty acids C26+C28+C30, per unit sediment mass; n-Alkanes C27+C29+C31, per unit sediment mass; n-Alkanol long chain alcohols C26+C28+C30, per unit sediment mass; Ocean Drilling Program; ODP; Sample code/label; South China Sea |
| url | https://doi.org/10.1594/PANGAEA.785032 |