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Rock Eval 6 pyrolysis

GP Grzegorz Pieńkowski
MH Marta Hodbod
CU Clemens V. Ullmann
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In total, splits from 88 (100–150 g) carbonate-free rock samples from two boreholes (Mechowo IG-1, Brody-Lubienia) were studied in the Rock Eval pyrolysis apparatus - model 6 Turbo (Vinci Technologies), in the laboratory of the Polish Geological Institute (Supplementary Table 1). Crushed bulk rock material was thermally decomposed in a helium or nitrogen atmosphere. Every sample was heated to 650°C. Repeat analyses of the parameters S1 (thermally liberated free hydrocarbons), S2 (volatile components released during pyrolysis), S3 (CO2 generated from kerogen) and TOC agree within ±0.05. The Oxygen Index (OI, in mg CO2/g TOC) is calculated according to the formula (S3*100)/TOC. Hydrogen index (HI) = S2 (mg/g)/%TOCx100.

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