Brukner Sándorné Wein Alice and Góczán Ferenc and Ikrényi Károly and Szűcs I. and Vető István: Study of organic matter on some Cenozoic samples from the DSDP Walwis Ridge Leg 75 Holes, with emphasis on its origin and petroleum potential. In: Acta mineralogica-petrographica, (27). pp. 175-183. (1985)
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Abstract
The authors have studied the organic matter content of 11 Cenozoic core samples from four Walwis Ridge Leg 75 Holes by means of organogeochemical and palynological techniques. The kerogen concentrates of the Paleogene to Early Miocene samples contain planktonic and landderived particles. These samples are scarce in organic matter (Corg<0.4%) due to the low sedimentation rate and/or the low surface biological productivity. The Upper Miocene to Pleistocene samples, rich in organic matter (CorB mostly»-1 %) also contain planktonic and land-derived organic particles. The proportion of the planktonic organic matter and Corg content increase from the Upper Miocene up to the Pleistocene. These observations can be explained by an upward increase in surface productivity and/or sedimentation rate. The upper, organic-rich part of the Cenozoic sequence accumulated in oxygen-depleted environment caused by the high plankton production due to the Benguela upwelling evolved in Late Miocene time. This part of the sequence may be regarded as a good potential oil source rock but the generation of a substantial amount of hydrocarbons in it has not started yet.
| Item Type: | Article |
|---|---|
| Journal or Publication Title: | Acta mineralogica-petrographica |
| Date: | 1985 |
| Volume: | 27 |
| ISSN: | 0365-8066 |
| Page Range: | pp. 175-183 |
| Language: | English |
| Publisher: | University of Szeged, Department of Mineralogy, Geochemistry and Petrology |
| Place of Publication: | Szeged |
| Related URLs: | http://acta.bibl.u-szeged.hu/39405/ |
| Uncontrolled Keywords: | Kőzettan, Ásványtan, Földtan |
| Additional Information: | Bibliogr.: 183. p. ; ill. ; összefoglalás angol nyelven |
| Subjects: | 01. Natural sciences 01. Natural sciences > 01.05. Earth and related environmental sciences |
| Date Deposited: | 2016. Oct. 17. 09:25 |
| Last Modified: | 2022. Jul. 26. 10:03 |
| URI: | http://acta.bibl.u-szeged.hu/id/eprint/24739 |
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