Accumulation rates of bulk sediment and total organic carbon for Ontong Java Plateau sediments
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| Auteurs principaux: | , |
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| Format: | Dataset Open Access |
| Langue: | en |
| Publié: |
PANGAEA
1993
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| _version_ | 1867169505777549312 |
|---|---|
| author | Stax, Rainer Stein, Ruediger |
| author_facet | Stax, Rainer Stein, Ruediger |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Organic geochemical investigations were performed on sediments of Leg 130 to reconstruct the depositional environment of the Ontong Java Plateau. The Miocene to Quaternary sediments collected during the drilling campaign are characterized by extremely low organic carbon contents. As indicated by C/N ratios and Rock-Eval data, most of the organic matter is probably of marine origin. Based on mass-accumulation rates of organic carbon, the paleoproductivity for the Miocene-Pliocene and the late Pliocene-Pleistocene time intervals as well as the modern surface-water production were estimated. The productivity values of the surface sediments (25-59 gC/m2/yr) reflect the various influences of the equatorial upwelling cell on the different sites. The accumulation rates of organic carbon are generally low; however, they show a distinct increase at 8 Ma and a decrease at 2 Ma. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_780751 |
| institution | PANGAEA |
| language | en |
| publishDate | 1993 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Accumulation rates of bulk sediment and total organic carbon for Ontong Java Plateau sediments Stax, Rainer Stein, Ruediger 130-803D; 130-804C; 130-805B; 130-805C; 130-806B; 130-807A; DRILL; Drilling/drill rig; Joides Resolution; Leg130; North Pacific Ocean; Ocean Drilling Program; ODP; West equatorial Pacific Ocean Organic geochemical investigations were performed on sediments of Leg 130 to reconstruct the depositional environment of the Ontong Java Plateau. The Miocene to Quaternary sediments collected during the drilling campaign are characterized by extremely low organic carbon contents. As indicated by C/N ratios and Rock-Eval data, most of the organic matter is probably of marine origin. Based on mass-accumulation rates of organic carbon, the paleoproductivity for the Miocene-Pliocene and the late Pliocene-Pleistocene time intervals as well as the modern surface-water production were estimated. The productivity values of the surface sediments (25-59 gC/m2/yr) reflect the various influences of the equatorial upwelling cell on the different sites. The accumulation rates of organic carbon are generally low; however, they show a distinct increase at 8 Ma and a decrease at 2 Ma. |
| title | Accumulation rates of bulk sediment and total organic carbon for Ontong Java Plateau sediments |
| topic | 130-803D; 130-804C; 130-805B; 130-805C; 130-806B; 130-807A; DRILL; Drilling/drill rig; Joides Resolution; Leg130; North Pacific Ocean; Ocean Drilling Program; ODP; West equatorial Pacific Ocean |
| url | https://doi.org/10.1594/PANGAEA.780751 |