Experimental modeling of strike-slip faults and the self-similar behavior

Autor(en)

M.P.J. Schöpfer, H.P. Steyrer

Abstrakt

Analogue modeling of strike-slip faults in sandbox experiments gave new insights into the nature of the relationship between size of structures and the thickness of the granular material. Experiments have been conducted with different materials and varying thicknesses. The results emphasize the self-similar behavior of structures modeled in sandbox experiments. Shearing of the sand cake led to a change of the sand properties, such as the frictional angle and the packing density within the shear-zone. Dilatancy is an undesirable effect and a scaling problem. Supressing dilatancy by the use of coarse-grained granular material consisting of well-rounded grains with smooth surfaces led to quasiductile behavior of the shear-zone. Layered models with quasiductile granular material and typical model sand led to results similar to those observed in prestressed sand cakes.

Organisation(en)

Institut für Geologie

Externe Organisation(en)

Paris-Lodron Universität Salzburg

Journal

Memoirs of the Geological Society of America

Band

193

Seiten

21-27

Anzahl der Seiten

7

ISSN

0072-1069

DOI

https://doi.org/10.1130/0-8137-1193-2.21

Publikationsdatum

01-2001

Peer-reviewed

Ja

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/c559eb09-9fb1-4cd0-a2f5-20cef3d4994a