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| Titel |
3-D thermo-mechanical laboratory modeling of plate-tectonics: modeling scheme, technique and first experiments |
| VerfasserIn |
D. Boutelier, O. Oncken  |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1869-9510
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| Digitales Dokument |
URL |
| Erschienen |
In: Solid Earth ; 2, no. 1 ; Nr. 2, no. 1 (2011-05-24), S.35-51 |
| Datensatznummer |
250000451
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| Publikation (Nr.) |
 copernicus.org/se-2-35-2011.pdf |
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| Zusammenfassung |
| We present an experimental apparatus for 3-D thermo-mechanical analogue
modeling of plate tectonic processes such as oceanic and continental
subductions, arc-continent or continental collisions. The model lithosphere,
made of temperature-sensitive elasto-plastic analogue materials with strain
softening, is submitted to a constant temperature gradient causing a
strength reduction with depth in each layer. The surface temperature is
imposed using infrared emitters, which allows maintaining an unobstructed
view of the model surface and the use of a high resolution optical strain
monitoring technique (Particle Imaging Velocimetry). Subduction experiments
illustrate how the stress conditions on the interplate zone can be estimated
using a force sensor attached to the back of the upper plate and adjusted via the density and strength of the subducting lithosphere or the
lubrication of the plate boundary. The first experimental results reveal the
potential of the experimental set-up to investigate the three-dimensional
solid-mechanics interactions of lithospheric plates in multiple natural
situations. |
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