δ34S character of organosulfur compounds in kerogen and bitumen fractions of sedimentary rocks
Hydropyrolysis (HyPy) of S-containing oil mature rock samples from two geologic settings each produced much higher concentrations of organosulfur compounds (OSCs) compared to their free occurrence in the bitumen. The d 34 S values of the most abundant OSCs from the kerogen and in the bitumen, were m...
| Main Authors: | , , , , |
|---|---|
| Format: | Journal Article |
| Published: |
Pergamon
2017
|
| Online Access: | https://epic.awi.de/id/eprint/44471/ http://hdl.handle.net/20.500.11937/54931 |
| Summary: | Hydropyrolysis (HyPy) of S-containing oil mature rock samples from two geologic settings each produced much higher concentrations of organosulfur compounds (OSCs) compared to their free occurrence in the bitumen. The d 34 S values of the most abundant OSCs from the kerogen and in the bitumen, were measured by gas chromatography inductively coupled plasma mass spectrometry (GC-ICP-MS). DBT and mDBTs from the HyPy processed kerogen fractions showed a distinct 34 S depletion, with d 34 S values up to 12‰ lighter than their bitumen occurrence. The different d 34 S values of OSCs from the kerogen and bitumen fractions is likely reflective of differences in timing of production, reduced sulfur sources or organic sulfurisation mechanism. |
|---|