Palaeo-heat flow assessment using automatic inverse modelling of sedimentary basin formation

Détails

ID Serval
serval:BIB_CD95EC368F26
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Palaeo-heat flow assessment using automatic inverse modelling of sedimentary basin formation
Périodique
Bollettino di Geofisica, Teorica ed Applicata
Auteur(s)
Schmalholz  S. M., Podladchikov Yu Yu
ISSN-L
0006-6729
Statut éditorial
Publié
Date de publication
2002
Volume
42
Numéro
1-2
Pages
91-4
Notes
Times Cited: 0
Modelling Reality, the Reality of Modelling Tectonics and Exploration Geophysics versus Analogue and Numerical Models
2-4 Oct. 2002
San Milanese, Italy
0
Résumé
We present the two-dimensional (2D) thermo-tectonic modelling software TECMOD2D, which consists of a numerical forward model for sedimentary basin formation and an automatic inversion algorithm. The main objective using TECMOD2D is the assessment of palaeo-heat flows in frontier areas characterized by a lack of boreholes and deep to ultra-deep waters. The TECMOD2D forward model is based on kinematic stretching and can simulate finite multiple rifting events, depth-dependent thinning, temperature advection and conduction, flexural isostasy, normal faulting, sediment compaction, thermal blanketing due to sediment deposition and radiogenic heat production within the crust and sediments. The forward model is coupled with an inversion algorithm that iteratively finds the optimal set of thinning factors and palaeo-water depths, which fit any observed basin stratigraphy best. This optimal set of thinning factors and palaeo-water depths finally provides the thermo-tectonic history including the palaeo-heat flow of the investigated sedimentary basin or passive continental margin. A special feature of TECMOD2D is that automatic fitting of normal faults can be activated within the inversion algorithm. Thereby, the automatic inversion algorithm first fits a smoothed crustal topography with the pure shear thinning factors and second, activates normal faults at the positions where the misfit between modelled and observed stratigraphy is still large.
Création de la notice
05/10/2015 6:45
Dernière modification de la notice
20/08/2019 16:48
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