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Numerical models for the thermo-mechanical evolution of Atlantic-type continental margins (1987)

Cloetingh, S. A. P. L. ; Wisse, G.

Chichester [u.a.] : Wiley-Blackwell

International Journal for Numerical Methods in Engineering 24 (1987), S. 141-157

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ISSN: 0029-5981

Keywords: Engineering ; Engineering General

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Mathematics , Technology

Notes: We have developed a versatile finite element approach to analyse stresses and displacements induced in thermally thinned and thickened geological structures. Material and geometric non-linearities form an important aspect of the finite element simulation. The changes in geometry are incorporated by a multipoint constraint procedure. The method takes into account temperature-dependent variations in rheological properties of the medium, including the presence of a brittle-ductile transition. We illustrate the application of the method for specific geophysical problems associated with the temperature history of the earth's crust at continental margins of the Atlantic type.

Additional Material: 13 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/nme.1620240111

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Mechanical aspects of sedimentary basin formation: development of integrated models for lithospheric and surface processes (1997)

Cloetingh, S. ; Balen, R. T. Van ; Voorde, M. Ter ; [et al.]

Springer

Geologische Rundschau 86 (1997), S. 226-240

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ISSN: 0016-7835

Keywords: Key words Sedimentary basin modeling ; Quantitative stratigraphy ; Lithospheric dynamics ; Thermo-mechanical models ; Extensional tectonics ; Rift shoulders ; Compressional basins ; Fold-and-thrust belts ; Erosion ; Surface processes

Source: Springer Online Journal Archives 1860-2000

Topics: Geosciences

Notes: Abstract Different assumptions for the thermo-mechanical properties of the lithosphere strongly affect predictions inferred from quantitative sedimentary basin modeling. Examples from various basins, selected as natural laboratories, illustrate the importance of incorporating a finite strength of the extending lithosphere in forward stratigraphic modeling of large-scale basin stratigraphy. Current models can effectively couple erosion at uplifted rift shoulders of extensional basins with the basin fill architecture of the subsiding basin compartments. Modeling of the synrift strata integrates spatial scales characteristic for subbasins, such as the Oseberg field in the North Sea, with large-scale lithospheric properties characterizing the bulk strength of extending lithosphere. Modeling of compressional basins in foreland fold-and-thrust-belt settings can effectively link lithospheric flexure with surface processes. Scales pertinent to short-term spatial and temporal variations in basin fill and basin deformation can now be addressed, allowing the quantitative investigation of consequences of different modes of thrusting for basin fill geometry and facies characteristics.