Uwagi o składzie jakościowym bituminów w utworach paleozoicznych i mezozoicznych w północno-wschodniej Polsce

Authors

  • Jan Calikowski
  • Barbara Gondek

Abstract

REMARKS ON THE QUANTITATIVE COMPONENT OF BITUMENS IN THE PALAEOZOIC AND MESOZOIC DEPOSITS OF NORTH-EASTERN POLANDThe paper deals with the estimation of properties of source rocks for crude oil, made on the basis of chemical analyses of bitumens occurring in the Older Palaeozoic deposits and in the Permian-Mesozoic sedimentary cover encountered in bore hole Pasłek. It was demonstrated that in the Ordovician deposits are found bitumens of the highest metamorphism degree, which considerably differ from those occurring in the younger rocks. The geochemical coefficients, obtained for the Silurian deposits, allow to state that these are source rocks for crude oil. It was also established that horizontal direction is the main trend of migration.Moreover, a resemblance between the bitumens of older Mesozoic age and the crude oils has been found by means of spectrophotometric analysis. However, the bitumens of younger series do not show any resemblances of this kind as proved by the samples examined.The researches presented in this paper were a basis for demonstration of the differences observed in transformations degree of organic substance in the Palaeozoic deposits and in the Permian-Mesozoic overburden strata. It was also stated that the metamorphism degree does increase with the age of the rocks examined.

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Issue

Vol. 9 No. 3 (1965)

Section

Articles

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