Affiliation:
1. FSBI FIC "Komi Scientific Center of the Ural Branch of the Russian Academy of Sciences"
Abstract
This article discusses the results of lithological and geochemical studies of the Artinskian deposits and organic matter, which is a part of the petroleum source rocks of the northern part of the Pre-Ural Foredeep of the Timan-Pechora Province. The rocks are very diverse in composition (clastolites, pelitolites, carbonatolites and mixtolites) and structural and textural features. Mixtoliths are widespread in shallow-marine environments (lower molasse deposits), which are associated with mixed terrestrial and marine organic matter. We recorded the predominance of poor and fair petroleum source rocks due to increasing terrigenous component. Mixtoliths of the Kochmes area (HI of 240 mg HC/g TOC) are characterized by the best generation potential. Organic petrography studies indicate the predominance of bituminite (sapropel base) in the composition of organic matter, the terrigenous components dominates in the eastern regions adjacent to the Urals.
Reference16 articles.
1. Bullock L., Parnell J., Muirhead D., Armstrong J., Schito A., Corrado S. A thermal maturity map based on vitrinite reflectance of British coals. Journal of the Geological Society. V. 176, 2019, pp. 1136-1142. https://doi.org/10.1144/jgs2019-055., Bullock L., Parnell J., Muirhead D., Armstrong J., Schito A., Corrado S. A thermal maturity map based on vitrinite reflectance of British coals. Journal of the Geological Society. V. 176, 2019, pp. 1136-1142. https://doi.org/10.1144/jgs2019-055.
2. Danham R. J. Classification of carbonate rock according to depositional texture. Classification of carbonate rock. Simposium Amer. Assoc. Petrol. Geol. Mem (Ed. by Ham V E), V. 1, 1962, pp. 108–121., Danham R. J. Classification of carbonate rock according to depositional texture. Classification of carbonate rock. Simposium Amer. Assoc. Petrol. Geol. Mem (Ed. by Ham V E), V. 1, 1962, pp. 108–121.
3. Mora A. Petroleum systems of the Eastern Cordillera, foothill basins, and associated Llanos basin: Impacts on the prediction of large scale foreland and foothill petroleum accumulations. AAPG Bulletin, V. 99, No. 8, 2015, pp. 1401–1406. DOI:10.1306/bltninto032615., Mora A. Petroleum systems of the Eastern Cordillera, foothill basins, and associated Llanos basin: Impacts on the prediction of large scale foreland and foothill petroleum accumulations. AAPG Bulletin, V. 99, No. 8, 2015, pp. 1401–1406. DOI:10.1306/bltninto032615.
4. Opera A., Alizadeh B., Sarafdokht H., Janbaz M., Fouladvand R., Heidarifard M. H. Burial history reconstruction and thermal maturity modeling for the middle cretaceous–early Miocene petroleum system, southern dezful embayment, SW Iran. International Journal of Coal Geology, V. 120, 2013. pp. 1–14. DOI:10.1016/j.coal.2013.08.008., Opera A., Alizadeh B., Sarafdokht H., Janbaz M., Fouladvand R., Heidarifard M. H. Burial history reconstruction and thermal maturity modeling for the middle cretaceous–early Miocene petroleum system, southern dezful embayment, SW Iran. International Journal of Coal Geology, V. 120, 2013. pp. 1–14. DOI:10.1016/j.coal.2013.08.008.
5. Pitman J. K., Steinshouer D., Lewan M. D. Petroleum generation and migration in the Mesopotamian Basin and Zagros Fold Belt of Iraq: results from a basin-modeling study. GeoArabia–Manama, V. 9, No. 4, 2004, pp. 41–72. DOI:10.2113/geoarabia090441., Pitman J. K., Steinshouer D., Lewan M. D. Petroleum generation and migration in the Mesopotamian Basin and Zagros Fold Belt of Iraq: results from a basin-modeling study. GeoArabia–Manama, V. 9, No. 4, 2004, pp. 41–72. DOI:10.2113/geoarabia090441.