Inverse Modelling of Sedimentary Basins
An integrated model for oil and gas reservoir (sedimentary basin) formation that couples large-scale processes, such as flexural isostasy, necking of the lithosphere (the Earth’s relatively rigid outer shell, ca. 100 kms) and consequent thermal contraction, with basin-scale processes (depth ca. 10 kms) of sediment deposition and compaction is being developed. The purpose is to reconstruct the thermo-tectonic history of real sedimentary basins. The forward model is coupled with an inverse module that automatically determines the best-fit parameters controlling the evolution of the lithospheric necking and palaeo-water depth through time. The primarily fitted data includes seismic and borehole based stratigraphy (the geometry of the sedimentary bodies deposited within constrained time intervals), and measurements of present day heat flux if available.
KeywordsSedimentary Basin Inverse Modeling Inversion Algorithm Goal Function Extensional Basin
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- 1.McKenzie, D.P. (1978) Some remarks on the development of sedimentary basins. Earth Planet. Sci. Lett. 40, 25–31.Google Scholar
- 2.Kooi, H. (1991) Tectonic modelling of extensional basins - the role of litho-spheric flexure, intraplate stress and relative sea-level change. PhD thesis, Vrije Universiteit, Amsterdam, The Netherlands, 183 pp.Google Scholar
- 3.Kooi, H. and Cloetingh, S. (1992) Lithospheric necking and regional isostasy at extensional basins 2. Stress induced vertical motions and relative sea level changes, J. Geoph. Res., 97, 17573–17591.Google Scholar
- 5.Poplayskii, K.N., Podladchikov, Yu.Yu. and Stephenson, R.A. (2001) 2D inverse modeling of sedimentary basin subsidence. J. Geophys. Res. Vol. 106, No. B4, p. 6657–6672.Google Scholar
- 6.White, N. (1994) An inverse method for determining lithospheric strain rate variation on geological timescales. Earth Planet. Sci. Lett., 122 (3–4), 351–371.Google Scholar