Abstract
As sedimentation and subsidence continue, temperature and pressure increase. In this changing physical environment, the structure of the immature kerogen is no longer in equilibrium with its surroundings. Rearrangements will progressively take place to reach a higher, and thus more stable, degree of ordering. The steric hindrances for higher ordering have to be eliminated. They are, for instance, nonplanar cycles (e.g., saturated cycles) and linkages with or without heteroatoms, preventing the cyclic nuclei from a parallel arrangement.
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© 1984 Springer-Verlag Berlin Heidelberg
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Tissot, B.P., Welte, D.H. (1984). From Kerogen to Petroleum. In: Petroleum Formation and Occurrence. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-87813-8_10
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DOI: https://doi.org/10.1007/978-3-642-87813-8_10
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-87815-2
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