Analysis of analogue models by helical X-ray computed tomography

Schreurs, Guido; Hanni, R.; Panien, M.; Vock, Peter (2003). Analysis of analogue models by helical X-ray computed tomography. Geological Society Special Publications, 215(1), pp. 213-223. Geological Society 10.1144/GSL.SP.2003.215.01.20

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The aim of analogue model experiments in geology is to simulate structures in nature under specific imposed boundary conditions using materials whose rheological properties are similar to those of rocks in nature. In the late 1980s, X-ray computed tomography (CT) was first applied to the analysis of such models. In early studies only a limited number of cross-sectional slices could be recorded because of the time involved in CT data acquisition, the long cooling periods for the X-ray source and computational capacity. Technological improvements presently allow an almost unlimited number of closely spaced serial cross-sections to be acquired and calculated. Computer visualization software allows a full 3D analysis of every recorded stage. Such analyses are especially valuable when trying to understand complex geological structures, commonly with lateral changes in 3D geometry. Periodic acquisition of volumetric data sets in the course of the experiment makes it possible to carry out a 4D analysis of the model, i.e. 3D analysis through time. Examples are shown of 4D analysis of analogue models that tested the influence of lateral rheological changes on the structures obtained in contractional and extensional settings.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Department of Radiology, Neuroradiology and Nuclear Medicine (DRNN) > Institute of Diagnostic, Interventional and Paediatric Radiology
08 Faculty of Science > Institute of Geological Sciences

UniBE Contributor:

Schreurs, Guido and Vock, Peter

Subjects:

600 Technology > 610 Medicine & health
500 Science > 550 Earth sciences & geology

ISSN:

0305-8719

Publisher:

Geological Society

Language:

English

Submitter:

Guido Schreurs

Date Deposited:

18 Jul 2016 14:19

Last Modified:

18 Jul 2016 14:19

Publisher DOI:

10.1144/GSL.SP.2003.215.01.20

URI:

https://boris.unibe.ch/id/eprint/83597

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