Dilatant normal faulting in jointed cohesive rocks: a physical model study

Kettermann, Michael; von Hagke, Christoph; van Gent, Heijn W.; Grützner, Christoph; Urai, Janos L.

doi:https://doi.org/10.5194/se-7-843-2016

Articles | Volume 7, issue 3

https://doi.org/10.5194/se-7-843-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/se-7-843-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 7, issue 3

Research article

|

27 May 2016

Research article |

| 27 May 2016

Dilatant normal faulting in jointed cohesive rocks: a physical model study

Michael Kettermann, Christoph von Hagke, Heijn W. van Gent, Christoph Grützner, and Janos L. Urai

Data sets

Physical models of dilatant normal faulting in jointed cohesive rocks Michael Kettermann, Christoph von Hagke, Heijn W. van Gent1, Christoph Grützner, Janos L. Urai https://doi.org/10.1594/PANGAEA.859151

Short summary

We present an analogue modeling study on the interaction of pre-existing joints and normal faults using cohesive powder. We vary the angle between joints and a rigid basement fault and analyze interpreted map-view photographs at maximum displacement for various parameters and compare to nature. Results show a clear effect of increasing angle between joints and faults on fault geometry, fracture density and connectivity. These information can help interpreting fractured layers in the subsurface.