Aromatic Biomarker-Hydrocarbons and Dibenzothiophenes in Bitumens of the Kuonamka Formation, Northeastern Siberian Platform

摘要

Highly carbonaceous clayey-siliceous-carbonate sediments of the Lower-Middle Cambrian Kuonamka Formation were accumulated in a pericontinental open shelf separated from the epicontinental salt-bearing system by barrier reefs. They formed one of the main oil-producing sequences in the eastern Siberian Platform. Recently, organic matter (OM) of these sequences has been studied by high-precision analytical methods. The present communication considers for the first time the main geochemical features of certain aromatic and sulfurorganic compounds in the Kuonamka sediments.