| Jiang Shanchun,Tang Yunqian. 1993. Distribution of moretene, sterere, fernene, hopene and dienoic carboxylic acid in marine sediments in sea area of the Southern Ocean. Acta Oceanologica Sinica, (2):237－247 |
| Distribution of moretene, sterere, fernene, hopene and dienoic carboxylic acid in marine sediments in sea area of the Southern Ocean |
| Distribution of moretene, sterere, fernene, hopene and dienoic carboxylic acid in marine sediments in sea area of the Southern Ocean |
| Received:February 26, 1992 Revised:August 30, 1992 |
| DOI： |
| Key words:Lipids diplotene moretene sterene fernene dienoic cacboxylic acid |
| 中文关键词: Lipids diplotene moretene sterene fernene dienoic cacboxylic acid |
| 基金项目:This project is supported by National Laboratory of Organic Geochemistry, China. |
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| Abstract: |
| The soluble organic matters were extracted from marine sediments in the sea area of Southern Ocean by using organic solvents. The hydrocarbon and carboxylic acid fractions were separated with the thin layer chromatography. The organic compounds of 170(H), 21α(H)-bishomomoretene, cholest-5-ene, 24-methyl-cholestene, 24-ethylcholestene, hop-17(21)-ene, neohop-13(18)-ene, fern-8-ene, fern-7-ene, 170(H), 210 (H)-hop-22(29)-ene (diplotene), steranes, β, β-hopanes C29-C31 and unsaturated carboxylic acids C18:2Δ9.12, C18:1Δ9,C18:1Δ11, have been identi-fied in the hydrocarbon and carboxylic acid fractions by means of gas chromatography and gas chromatography-mass spec-trometry-data system. The distributions of 3, a-bishomomoretene, β,β-hopene and β,β-hopane are characteristic of immature organic matter. The sterane, C29 20S/20R epimer ratio 0.6 indicate that the organic matter had experienced a thermal evolution in the early sedimentation. The unsaturated fatty acids especially dienoic acids and fernene compounds indicare not only the origin from autochthonous bacteria but also the reducing environment in the Southern Ocean. |
| 中文摘要: |
| The soluble organic matters were extracted from marine sediments in the sea area of Southern Ocean by using organic solvents. The hydrocarbon and carboxylic acid fractions were separated with the thin layer chromatography. The organic compounds of 170(H), 21α(H)-bishomomoretene, cholest-5-ene, 24-methyl-cholestene, 24-ethylcholestene, hop-17(21)-ene, neohop-13(18)-ene, fern-8-ene, fern-7-ene, 170(H), 210 (H)-hop-22(29)-ene (diplotene), steranes, β, β-hopanes C29-C31 and unsaturated carboxylic acids C18:2Δ9.12, C18:1Δ9,C18:1Δ11, have been identi-fied in the hydrocarbon and carboxylic acid fractions by means of gas chromatography and gas chromatography-mass spec-trometry-data system. The distributions of 3, a-bishomomoretene, β,β-hopene and β,β-hopane are characteristic of immature organic matter. The sterane, C29 20S/20R epimer ratio 0.6 indicate that the organic matter had experienced a thermal evolution in the early sedimentation. The unsaturated fatty acids especially dienoic acids and fernene compounds indicare not only the origin from autochthonous bacteria but also the reducing environment in the Southern Ocean. |
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