Experimental controls on D/H and 13C/12C ratios of kerogen, bitumen and oil during hydrous pyrolysis
Organic Geochemistry
By: A. Schimmelmann, J.-P. Boudou, M. D. Lewan, and R. P. Wintsch
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Abstract
Large isotopic transfers between water-derived hydrogen and organic hydrogen occurred during hydrous pyrolysis experiments of immature source rocks, in spite of only small changes in organic 13C/12C. Experiments at 330 ??C over 72 h using chips or powder containing kerogen types I and III identify the rock/water ratio as a main factor affecting ????D for water and organic hydrogen. Our data suggest that larger rock permeability and smaller rock grain size increase the H-isotopic transfer between water-derived hydrogen and thermally maturing organic matter. Increasing hydrostatic pressure may have a similar effect, but the evidence remains inconclusive. ?? 2001 Elsevier Science Ltd. All rights reserved.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Experimental controls on D/H and 13C/12C ratios of kerogen, bitumen and oil during hydrous pyrolysis |
| Series title | Organic Geochemistry |
| DOI | 10.1016/S0146-6380(01)00059-6 |
| Volume | 32 |
| Issue | 8 |
| Year Published | 2001 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Organic Geochemistry |
| First page | 1009 |
| Last page | 1018 |