Title | The isotopic composition of carbon and oxygen of the calcite of veinlet-impregnated mineralization of rock complexes of the north-western part of the Krosno zone of the Ukrainian Carpathians |
Publication Type | Journal Article |
Year of Publication | 2015 |
Authors | Naumko, IM, Ponomarenko, OM, Zankovych, HO, Moroz, VS, Proskurko, LI |
Abbreviated Key Title | Dopov. Nac. akad. nauk Ukr. |
DOI | 10.15407/dopovidi2015.04.087 |
Issue | 4 |
Section | Geosciences |
Pagination | 87-93 |
Date Published | 4/2015 |
Language | Ukrainian |
Abstract | The isotopic composition of carbon and oxygen of the calcite of veinlet-impregnated mineralization of terrigenous rock complexes of geological structures of the north-western part of the Krosno zone of the Ukrainian Carpathians is established. Sufficiently homogeneous values of $\delta$ $\rm ^{13}C$ (${-}2.53\ldots {-}0.29$‰, standard PDB), and $\delta$ $\rm ^{18}O$ ($22.57\ldots 26.52$‰, standard SMOW) have revealed. They are not correlated with a depth of the occurrence and a spatial distribution of veinlets in natural denudations, the composition and the age of the enclosing rock, etc. The proximity of these values to those of the calcite of the veinlet-impregnated mineralization and enclosing rocks within the limits of the Lopushna and Kokhanivka oil fields in allochthonous and autochthonous complexes of the Ciscarpathia suggests a similarity of the processes of transfer of hydrocarbons by migrating fluids and the healing of migration fractures with a mineral matter as a result of the intensification of vertical migration phenomena, and, therefore, the possibility of the formation of hydrocarbon deposits in paraautochthonous sediments of the flish Paleogene in the so-called zones of tight collectors.
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Keywords | carbon, isotope, Krosno zone, mineralization, oxygen of the calcite, Ukrainian Carpathians |
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