(Table 1) Organic geochemistry at DSDP Leg 71 Holes
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| Formato: | Dataset Open Access |
| Lenguaje: | en |
| Publicado: |
PANGAEA
1983
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| _version_ | 1867170961471569920 |
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| author | Copelin, E C Larter, S R |
| author_facet | Copelin, E C Larter, S R |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Forty-three core samples from Sites 511 through 514 of DSDP Leg 71 were analyzed geochemically. The black shales at the bottom of Hole 511, in the basin province of the Falkland Plateau, contain an average of 1590 ppm extractable organic matter (EOM) and 120 ppm hydrocarbons. Whereas molecular type-carbon number distributions of mono- and polynuclear aromatic hydrocarbons and their sulphur and oxygen analogues in the black shale "aromatic hydrocarbon" fractions are very similar to those of many crude oils, other data - gas chromatography (GC) fingerprint, pyrolysis GC, visual kerogen analysis, H/C ratio - suggest the black shale section is thermally immature. Together, these observations imply that many of the hydrocarbons were deposited with the original sediments or are diagenetic products of other biological compounds. Pyrograms of the humic acid and kerogen fractions from the black shale interval are typical of geopolymers derived from marine algal material. It appears that these humic acids and kerogens are derived from the same lipid stock. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_815222 |
| institution | PANGAEA |
| language | en |
| publishDate | 1983 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | (Table 1) Organic geochemistry at DSDP Leg 71 Holes Copelin, E C Larter, S R 71-511; 71-512; 71-513; 71-513A; 71-514; Aromatics; Asphaltenes; Chromatographic; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Event label; Gas chromatography; Glomar Challenger; Humic acid; Hydrocarbons; Latitude of event; Leg71; Longitude of event; Mass spectrometry (MS); Organic matter; Organic matter, extractable; Pyrolysis gas chromatography; Sample code/label; Saturated hydrocarbon fraction; see reference(s); South Atlantic/BANK; South Atlantic/FLANK; South Atlantic/PLATEAU; South Atlantic Ocean Forty-three core samples from Sites 511 through 514 of DSDP Leg 71 were analyzed geochemically. The black shales at the bottom of Hole 511, in the basin province of the Falkland Plateau, contain an average of 1590 ppm extractable organic matter (EOM) and 120 ppm hydrocarbons. Whereas molecular type-carbon number distributions of mono- and polynuclear aromatic hydrocarbons and their sulphur and oxygen analogues in the black shale "aromatic hydrocarbon" fractions are very similar to those of many crude oils, other data - gas chromatography (GC) fingerprint, pyrolysis GC, visual kerogen analysis, H/C ratio - suggest the black shale section is thermally immature. Together, these observations imply that many of the hydrocarbons were deposited with the original sediments or are diagenetic products of other biological compounds. Pyrograms of the humic acid and kerogen fractions from the black shale interval are typical of geopolymers derived from marine algal material. It appears that these humic acids and kerogens are derived from the same lipid stock. |
| title | (Table 1) Organic geochemistry at DSDP Leg 71 Holes |
| topic | 71-511; 71-512; 71-513; 71-513A; 71-514; Aromatics; Asphaltenes; Chromatographic; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Event label; Gas chromatography; Glomar Challenger; Humic acid; Hydrocarbons; Latitude of event; Leg71; Longitude of event; Mass spectrometry (MS); Organic matter; Organic matter, extractable; Pyrolysis gas chromatography; Sample code/label; Saturated hydrocarbon fraction; see reference(s); South Atlantic/BANK; South Atlantic/FLANK; South Atlantic/PLATEAU; South Atlantic Ocean |
| url | https://doi.org/10.1594/PANGAEA.815222 |