Abstract
Measurement of in-situ stresses during an experiment has been long on the wish-list of sandbox modellers. This paper reports the first results of such measurements, using miniature solid state pressure transducers. These allow a quantification of the development of stress fields during model experiments of thrust tectonics, and form a basis for comparing sandbox experiments with theoretical models.
First results show that within each experiment the pattern of variation in horizontal stress in space and time is consistent. The stress magnitudes are reproducible and in agreement with the expected values. Low amplitude stress cycling after the initiation of a fault is an interesting observation, interpreted to represent stick-slip process in the fault zone. The measured variations in horizontal stress can also be correlated to density variations seen in X-ray Tomograph (CT) scans. This provides additional means to visualize aspects of a stress field development in 3D and in time.
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© 2000 Springer-Verlag Berlin Heidelberg
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Nieuwland, D.A., Urai, J.L., Knoop, M. (2000). In-situ stress measurements in model experiments of tectonic faulting. In: Lehner, F.K., Urai, J.L. (eds) Aspects of Tectonic Faulting. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-59617-9_8
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DOI: https://doi.org/10.1007/978-3-642-59617-9_8
Publisher Name: Springer, Berlin, Heidelberg
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