General descriptions, organic contents and ratios of geolipid components at DSDP Leg 74 Holes
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PANGAEA
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| Autores principales: | , |
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| Formato: | Dataset Open Access |
| Lenguaje: | en |
| Publicado: |
PANGAEA
1984
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| Acceso en línea: | |
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| _version_ | 1867169508845682688 |
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| author | Meyers, Philip A Keswani, Sushiel R |
| author_facet | Meyers, Philip A Keswani, Sushiel R |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Two samples of Miocene sediments from Site 525 and four samples of sediments ranging in age from Pleistocene to Miocene from Site 528 have been analyzed for concentrations of organic and carbonate carbon, carbon/nitrogen ratios of organic matter, and extractable hydrocarbons and fatty acids. Organic carbon concentrations average 0.32% and show a diagenetic decrease with greater sediment age. Distributions of n-alkanes and n-alkanoic acids give evidence of considerable microbial reworking and of eolian contributions of terrigenous components. Organic contents of these sediments reflect a history of low marine productivity and poor preservation of organic matter in the eastern South Atlantic since middle Miocene times. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_810617 |
| institution | PANGAEA |
| language | en |
| publishDate | 1984 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | General descriptions, organic contents and ratios of geolipid components at DSDP Leg 74 Holes Meyers, Philip A Keswani, Sushiel R 74-525A; 74-528; 74-528A; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg74; South Atlantic/CREST; South Atlantic/RIDGE Two samples of Miocene sediments from Site 525 and four samples of sediments ranging in age from Pleistocene to Miocene from Site 528 have been analyzed for concentrations of organic and carbonate carbon, carbon/nitrogen ratios of organic matter, and extractable hydrocarbons and fatty acids. Organic carbon concentrations average 0.32% and show a diagenetic decrease with greater sediment age. Distributions of n-alkanes and n-alkanoic acids give evidence of considerable microbial reworking and of eolian contributions of terrigenous components. Organic contents of these sediments reflect a history of low marine productivity and poor preservation of organic matter in the eastern South Atlantic since middle Miocene times. |
| title | General descriptions, organic contents and ratios of geolipid components at DSDP Leg 74 Holes |
| topic | 74-525A; 74-528; 74-528A; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg74; South Atlantic/CREST; South Atlantic/RIDGE |
| url | https://doi.org/10.1594/PANGAEA.810617 |