Two-dimensional inverse modeling of sedimentary basin subsidence

Details

Serval ID
serval:BIB_D8E71F2617CA
Type
Article: article from journal or magazin.
Collection
Publications
Title
Two-dimensional inverse modeling of sedimentary basin subsidence
Journal
Journal of Geophysical Research - Solid Earth
Author(s)
Poplavskii K.N., Podladchikov Y.Y., Stephenson R.A.
ISSN-L
0148-0227
Publication state
Published
Issued date
2001
Peer-reviewed
Oui
Volume
106
Pages
6657-6671
Language
english
Abstract
Recently developed mathematical models of subsidence in extensional
basins provide a good basis for forward modeling. However, the large
number of parameters to be specified by the user makes it difficult not
only to do the modeling itself, but also to judge the meaning of the
results. We present a new method for automatic searching of the
best-fitting parameter set of a 2D basin formation model. Weighted goal
functions are used in the minimization process by the inverse problem
solver algorithm. The nominal parameter set in the present case includes
profiles of the crustal and subcrustal thinning factors, and the level
of lithosphere necking. The method was tested on synthetic data with
parameters that were perturbed beforehand. With some restrictions, the
algorithms are capable of resolving such perturbations. The inversion
technique has been applied to two profiles crossing the Dnieper-Donets
Basin (Ukraine). The crustal thinning factors obtained argue for a
scissors-like style of basin opening. High subcrustal thinning values
are necessary in order to explain the abnormally thick Carboniferous
section in the basin. These values should be treated as cumulative ones
due to the currently unresolvable influence of other rifting-related
processes, particularly phase transitions.
Open Access
Yes
Create date
09/10/2012 20:50
Last modification date
09/05/2019 1:59
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