Geochemical and petrographic investigation of Himmetoǧlu oil shale field, Göynük, Turkey
✍ Scribed by Mehmet Şener; M. Niyazi Gündoǧdu
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 832 KB
- Volume
- 75
- Category
- Article
- ISSN
- 0016-2361
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✦ Synopsis
Mineral and maceral types show that the huminite and liptinite groups tend to be associated with smectite, clinoptilolite and calcite in Hirnmetoglu oil shale, while the liptinite group is accompanied by analcime and dolomite in bituminous laminated marl. The pH value increases from bottom (pH < 9) to top @H > 9) in the HimmetoBu formation and volcanogenic materials have played a very important role in deposition of organic matter. The negative correlation between trace elements and organic carbon suggests absence of enrichment of trace elements in oil shales. The results of g.c.-m.s. and carbon isotope analysis show that there is a decrease in the amount of terrestrial organic matter and a relative decrease in maturity of the organic matter in the vertical succession from Himmetojjlu oil shale up to the bituminous laminated marl.