Petrography and geochemistry of organic matter at DSDP Holes 80-549 and 80-550B
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| Format: | Dataset Open Access |
| Sprache: | en |
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PANGAEA
1985
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| _version_ | 1867167669724119040 |
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| author | Hartung, Birgitta Mukhopadhyay, Prasanta K Rullkötter, Jürgen Schaefer, Rainer G Welte, Dietrich Hugo |
| author_facet | Hartung, Birgitta Mukhopadhyay, Prasanta K Rullkötter, Jürgen Schaefer, Rainer G Welte, Dietrich Hugo |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Three lower Barremian to middle/upper Cenomanian samples from DSDP Hole 549 and three lower Cenomanian to lower Maestrichtian samples from DSDP Hole 550B were investigated by organic geochemical and organic petrographic methods. The samples came from wells drilled in the area of the Goban Spur in the northeastern Atlantic; they represent gray to greenish gray carbonaceous mud or siltstones from the deeper parts of the Cretaceous sequences penetrated and light-colored chalks from the shallower ones. The total amount of organic carbon is below 1% in all samples; it is especially low in the Cenomanian to Maestrichtian chalks. Terrigenous organic matter predominates; only the Barremian sample shows a moderate number of marine phytoclasts. As indicated by several parameters, the maturity of the organic matter is low, corresponding to about 0.4% vitrinite reflectance. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_808044 |
| institution | PANGAEA |
| language | en |
| publishDate | 1985 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Petrography and geochemistry of organic matter at DSDP Holes 80-549 and 80-550B Hartung, Birgitta Mukhopadhyay, Prasanta K Rullkötter, Jürgen Schaefer, Rainer G Welte, Dietrich Hugo Deep Sea Drilling Project; DSDP Three lower Barremian to middle/upper Cenomanian samples from DSDP Hole 549 and three lower Cenomanian to lower Maestrichtian samples from DSDP Hole 550B were investigated by organic geochemical and organic petrographic methods. The samples came from wells drilled in the area of the Goban Spur in the northeastern Atlantic; they represent gray to greenish gray carbonaceous mud or siltstones from the deeper parts of the Cretaceous sequences penetrated and light-colored chalks from the shallower ones. The total amount of organic carbon is below 1% in all samples; it is especially low in the Cenomanian to Maestrichtian chalks. Terrigenous organic matter predominates; only the Barremian sample shows a moderate number of marine phytoclasts. As indicated by several parameters, the maturity of the organic matter is low, corresponding to about 0.4% vitrinite reflectance. |
| title | Petrography and geochemistry of organic matter at DSDP Holes 80-549 and 80-550B |
| topic | Deep Sea Drilling Project; DSDP |
| url | https://doi.org/10.1594/PANGAEA.808044 |